Journal Description
Inorganics
Inorganics
is an international, scientific, peer-reviewed, open access journal on inorganic chemistry published monthly online by MDPI.
- Open Access— free for readers, with article processing charges (APC) paid by authors or their institutions.
- High Visibility: indexed within Scopus, SCIE (Web of Science), CAPlus / SciFinder, and other databases.
- Journal Rank: JCR - Q2 (Chemistry, Inorganic and Nuclear) / CiteScore - Q2 (Inorganic Chemistry)
- Rapid Publication: manuscripts are peer-reviewed and a first decision is provided to authors approximately 12.8 days after submission; acceptance to publication is undertaken in 2.9 days (median values for papers published in this journal in the second half of 2023).
- Recognition of Reviewers: reviewers who provide timely, thorough peer-review reports receive vouchers entitling them to a discount on the APC of their next publication in any MDPI journal, in appreciation of the work done.
- Testimonials: See what our authors say about Inorganics.
Impact Factor:
3.1 (2023);
5-Year Impact Factor:
2.6 (2023)
Latest Articles
Research Progress of TiO2 Modification and Photodegradation of Organic Pollutants
Inorganics 2024, 12(7), 178; https://doi.org/10.3390/inorganics12070178 - 26 Jun 2024
Abstract
Titanium dioxide (TiO2) photocatalysts, characterized by exceptional photocatalytic activity, high photoelectric conversion efficiency, and economic viability, have found widespread application in recent years for azo dye degradation. However, inherent constraints, such as the material’s limited visible light absorption stemming from its
[...] Read more.
Titanium dioxide (TiO2) photocatalysts, characterized by exceptional photocatalytic activity, high photoelectric conversion efficiency, and economic viability, have found widespread application in recent years for azo dye degradation. However, inherent constraints, such as the material’s limited visible light absorption stemming from its bandgap and the swift recombination of charge carriers, have impeded its broader application potential. Encouragingly, these barriers can be mitigated through the modification of TiO2. In this review, the common synthesis methods of TiO2 are reviewed, and the research progress of TiO2 modification technology at home and abroad is discussed in detail, including precious metal deposition, transition metal doping, rare earth metal doping, composite semiconductors, and composite polymers. These modification techniques effectively enhance the absorption capacity of TiO2 in the visible region and reduce the recombination rate of carriers and electrons, thus significantly improving its photocatalytic performance. Finally, this paper looks forward to the future development direction of TiO2 photocatalytic materials, including the exploration of new modified materials, in-depth mechanism research, and performance optimization in practical applications, to provide useful references for further research and application of TiO2 photocatalytic materials.
Full article
(This article belongs to the Special Issue New Advances into Nanostructured Oxides, 2nd Edition)
►
Show Figures
Open AccessArticle
Synthesis, Characterization, and Cytotoxicity of a Ga(III) Complex with Warfarin
by
Hubert Joe, Venceslava Atanasova, Jan Mojžiš and Irena Kostova
Inorganics 2024, 12(7), 177; https://doi.org/10.3390/inorganics12070177 - 24 Jun 2024
Abstract
The gallium(III) complex of warfarin was synthesized, and its structure was determined by means of theoretical, analytical, and spectral analyses. Significant differences in the IR and Raman spectra of the complex were observed as compared to the spectra of the ligand and confirmed
[...] Read more.
The gallium(III) complex of warfarin was synthesized, and its structure was determined by means of theoretical, analytical, and spectral analyses. Significant differences in the IR and Raman spectra of the complex were observed as compared to the spectra of the ligand and confirmed the suggested metal-ligand binding mode. The theoretical study of the Ga(III) complex of warfarin has been done to elucidate the structure-activity relation, inter- and intra-molecular interactions, and frontier molecular orbital energy analysis based on DFT computations. A molecular docking study has been performed to predict the biological activity of the molecule. In this paper, we report preliminary results about the cytotoxicity of the investigated compounds. The cytotoxic effects of the ligand and its Ga(III) complex were determined using the MTT method on different tumor cell lines. The screening performed revealed that the tested compounds exerted cytotoxic activity on the evaluated cell lines.
Full article
(This article belongs to the Section Bioinorganic Chemistry)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00177/article_deploy/html/images/inorganics-12-00177-g001-550.jpg?1719222894)
Figure 1
Open AccessArticle
Synthesis, X-ray Structure, Cytotoxic, and Anti-Microbial Activities of Zn(II) Complexes with a Hydrazono s-Triazine Bearing Pyridyl Arm
by
MennaAllah Hassan, Ayman El-Faham, Assem Barakat, Matti Haukka, Rajendhraprasad Tatikonda, Morsy A. M. Abu-Youssef, Saied M. Soliman and Amal Yousri
Inorganics 2024, 12(7), 176; https://doi.org/10.3390/inorganics12070176 - 21 Jun 2024
Abstract
The [ZnL(ONO2)2] 1 and [ZnL(NCS)2] 2 complexes were synthesized using self-assembly of the s-triazine tridentate ligand (L) with Zn(NO3)2·6H2O and Zn(ClO4)2·6H2O/NH4
[...] Read more.
The [ZnL(ONO2)2] 1 and [ZnL(NCS)2] 2 complexes were synthesized using self-assembly of the s-triazine tridentate ligand (L) with Zn(NO3)2·6H2O and Zn(ClO4)2·6H2O/NH4SCN, respectively. The Zn(II) is further coordinated by two nitrate and two isothiocyanate groups as monodentate ligands in 1 and 2, respectively. Both complexes have distorted square pyramidal coordination environments where the extent of distortion is found to be greater in 2 (τ5 = 0.41) than in 1 (τ5 = 0.28). Hirshfeld calculations explored the significant C···O, C···C, N···H, and O···H contacts in the molecular packing of both complexes. The energy framework analysis gave the total interaction energies of −317.8 and −353.5 kJ/mol for a single molecule in a 3.8 Å cluster of 1 and 2, respectively. The total energy diagrams exhibited a strong resemblance to the dispersion energy frameworks in both complexes. NBO charge analysis predicted the charges of the Zn(II) in complexes 1 and 2 to be 1.217 and 1.145 e, respectively. The electronic configuration of Zn1 is predicted to be [core] 4S0.32 3d9.98 4p0.45 4d0.02 5p0.01 for 1 and [core] 4S0.34 3d9.97 4p0.53 4d0.02 for 2. The increased occupancy of the valence orbitals is attributed to the donor→acceptor interactions from the ligand groups to Zn(II). The Zn(II) complexes were examined for their cytotoxic and antimicrobial activities. Both 1 and 2 have good cytotoxic efficiency towards HCT-116 and A-549 cancerous cell lines. We found that 1 is more active (IC50 = 29.53 ± 1.24 and 35.55 ± 1.69 µg/mL) than 2 (IC50 = 41.25 ± 2.91 and 55.05 ± 2.87 µg/mL) against both cell lines. Also, the selectivity indices for the Zn(II) complexes are higher than one, indicating their suitability for use as anticancer agents. In addition, both complexes have broad-spectrum antimicrobial activity (IC50 = 78–625 μg/mL) where the best result is found for 2 against P. vulgaris (IC50 = 78 μg/mL). Its antibacterial activity is found to be good compared to gentamycin (5 μg/mL) as a positive control against this microbe.
Full article
(This article belongs to the Section Coordination Chemistry)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00176/article_deploy/html/images/inorganics-12-00176-g001-550.jpg?1718965842)
Figure 1
Open AccessArticle
Palladium-Catalyzed Cross-Coupling Reaction via C–H Activation of Furanyl and Thiofuranyl Substrates
by
Neslihan Şahin, İsmail Özdemir and David Sémeril
Inorganics 2024, 12(6), 175; https://doi.org/10.3390/inorganics12060175 - 20 Jun 2024
Abstract
The present study explores the potential of four NHC-palladium(II) complexes derived from (Z)- or (E)-styryl-N-alkylbenzimidazolium salts, namely trans-dichloro-[(Z)-1-styryl- 3-benzyl-benzimidazol-2-yliden]pyridine palladium(II) (6), trans-dichloro-[(E)-1-styryl-3-benzyl- benzimidazol-2-yliden]pyridine palladium(II) (7), trans-dichloro-[(
[...] Read more.
The present study explores the potential of four NHC-palladium(II) complexes derived from (Z)- or (E)-styryl-N-alkylbenzimidazolium salts, namely trans-dichloro-[(Z)-1-styryl- 3-benzyl-benzimidazol-2-yliden]pyridine palladium(II) (6), trans-dichloro-[(E)-1-styryl-3-benzyl- benzimidazol-2-yliden]pyridine palladium(II) (7), trans-dichloro-[(Z)-1-styryl-3-(3-fluorobenzyl)- benzimidazol-2-yliden]pyridine palladium(II) (8) and trans-dichloro-[(E)-1-styryl-3- (3-fluorobenzyl)-benzimidazol-2-yliden]pyridine palladium(II) (9), to be use as pre-catalysts for the cross-coupling reactions between furanyl or thiofuranyl derivatives and arylbromides via the C–H activation of the heterocycles. The structures of the four Pd(II) complexes have been elucidated through the use of multinuclear NMR, FT-IR and mass spectroscopy. Furthermore, the cis or trans conformation of the styryl substituents and the geometry of two different compounds was substantiated by single-crystal X-ray diffraction, which was carried out on organometallic species 6, 8 and 9. After the optimization of catalytic conditions, which was carried out with 1 mol% of pre-catalyst with KOAc as a base in dimethylacetamide at 120 °C for 3 h, complex 6 proved to be the most effective pre-catalyst agent, with full or quasi full conversions being observed in the cross-coupling of 4-bromoacetophenone with 2-butylfuran, 1-(2-furanyl)-ethanone, furfuryl acetate, furfural, 1-(2-thienyl)-ethanone, thenaldehyde and 2-methylthiophene.
Full article
(This article belongs to the Special Issue Feature Papers in Organometallic Chemistry 2024)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00175/article_deploy/html/images/inorganics-12-00175-ag-550.jpg?1719277143)
Graphical abstract
Open AccessArticle
Some Aspects of Hot Carrier Photocurrent across GaAs p-n Junction
by
Steponas Ašmontas, Oleksandr Masalskyi, Ihor Zharchenko, Algirdas Sužiedėlis and Jonas Gradauskas
Inorganics 2024, 12(6), 174; https://doi.org/10.3390/inorganics12060174 - 20 Jun 2024
Abstract
The photocurrent across crystalline GaAs p-n junction induced by Nd:YAG laser radiation was investigated experimentally. It is established that the displacement current is dominant at reverse and low forward bias voltages in the case of pulsed excitation. This indicates that hot carriers do
[...] Read more.
The photocurrent across crystalline GaAs p-n junction induced by Nd:YAG laser radiation was investigated experimentally. It is established that the displacement current is dominant at reverse and low forward bias voltages in the case of pulsed excitation. This indicates that hot carriers do not have enough energy to overcome the p-n junction until the forward bias significantly reduces the potential barrier. At a sufficiently high forward bias, the photocurrent is determined by the diffusion of hot carriers across the p-n junction. The current–voltage (I-V) characteristics measured at different crystal lattice temperatures show that the heating of carriers by laser radiation increases with a drop in crystal lattice temperature. This study proposes a novel model for evaluating carrier temperature based on the temperature coefficient of the I-V characteristic. It is demonstrated that the heating of carriers by light diminishes the conversion efficiency of a solar cell, not only through thermalisation but also because of the conflicting interactions between the hot carrier and conventional photocurrents, which exhibit opposite polarities. These findings contribute to an understanding of hot carrier phenomena in photovoltaic devices and may prompt a revision of the intrinsic losses in solar cells.
Full article
(This article belongs to the Special Issue Optical and Quantum Electronics: Physics and Materials)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00174/article_deploy/html/images/inorganics-12-00174-g001-550.jpg?1718860817)
Figure 1
Open AccessArticle
Direct Synthesis of C-Substituted [RC(O)CH2-CB11H11]− Carborate Anions
by
Vanessa C. Barra, Eduard Bernhardt, Sarah Fellinger, Carsten Jenne and Shiomi S. Langenbach
Inorganics 2024, 12(6), 173; https://doi.org/10.3390/inorganics12060173 - 19 Jun 2024
Abstract
A new synthetic method for the synthesis of C-substituted [RC(O)CH2-CB11H11]− carborate anions has been developed. The reaction of [closo-B11H11]2− with terminal alkynes in the presence of a copper
[...] Read more.
A new synthetic method for the synthesis of C-substituted [RC(O)CH2-CB11H11]− carborate anions has been developed. The reaction of [closo-B11H11]2− with terminal alkynes in the presence of a copper catalyst leads to insertion into the boron cluster, and C-substituted [RC(O)CH2-CB11H11]− carborate anions are formed. These reactions are strongly dependent on the reaction conditions, the solvents, and the alkynes used. The alkynes HCCCO2Et, HCCCO2Me, and HCCCONH2 lead to the formation of [NH2C(O)CH2-CB11H11]− as the final product in aqueous ammonia solution. In contrast, the reaction using the alkyne HCCCOMe yields [MeC(O)CH2-CB11H11]−. The products have been fully characterized by multinuclear NMR and IR spectroscopy as well as mass spectrometry. The crystal structures of K[NH2C(O)CH2-CB11H11] and [NEt3CH2Cl][NH2C(O)CH2-CB11H11] have been determined.
Full article
(This article belongs to the Special Issue State-of-the-Art Inorganic Chemistry in Germany)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00173/article_deploy/html/images/inorganics-12-00173-ag-550.jpg?1718876045)
Graphical abstract
Open AccessArticle
Theoretical Studies on the Insertion Reaction of Polar Olefinic Monomers Mediated by a Scandium Complex
by
Xin Wen, Kaipai Ren, Wenzhen Zhang, Guangli Zhou and Yi Luo
Inorganics 2024, 12(6), 172; https://doi.org/10.3390/inorganics12060172 - 19 Jun 2024
Abstract
This study aimed to investigate the insertion reaction of the polar monomers mediated by the cationic rare earth metal complex [(C5H5)Sc(NMe2CH2C6H4-o)]+ utilizing a combination of density functional theory
[...] Read more.
This study aimed to investigate the insertion reaction of the polar monomers mediated by the cationic rare earth metal complex [(C5H5)Sc(NMe2CH2C6H4-o)]+ utilizing a combination of density functional theory (DFT) calculations and multivariate linear regression (MLR) methods. The chain initiation step of the insertion reaction could be described by the poisoning effect and the ease of monomer insertion, which could be represented via the DFT-calculated energy difference between σ- and π-coordination complexes (ΔΔE) and insertion energy barrier (ΔG≠), respectively. The results indicate that ΔΔE and ΔG≠ can be predicted by only several descriptors using multiple linear regression methods, with a root mean squared error (RMSE) of less than 2.5 kcal/mol. Furthermore, the qualitative analysis of the MLR models provided effective information on the key factors governing the insertion reaction chain initiation.
Full article
(This article belongs to the Special Issue Feature Papers in Organometallic Chemistry 2024)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00172/article_deploy/html/images/inorganics-12-00172-g001-550.jpg?1718787761)
Figure 1
Open AccessArticle
Synthesis of Cobalt(III) Complexes Derived from Pyridoxal: Structural Cleavage Evaluations and In Silico Calculations for Biological Targets
by
Liniquer André Fontana, Francisco Mainardi Martins, Josiéli Demetrio Siqueira, Carlos Serpa, Otávio Augusto Chaves and Davi Fernando Back
Inorganics 2024, 12(6), 171; https://doi.org/10.3390/inorganics12060171 - 18 Jun 2024
Abstract
This study sought to investigate the synthesis of eight complexes constituted by a cobalt(III) (CoIII) metallic center coordinated to two units of iminic ligands LnC (n = 1–4, L1C–L4C), which are derivatives of pyridoxal hydrochloride and anilines with
[...] Read more.
This study sought to investigate the synthesis of eight complexes constituted by a cobalt(III) (CoIII) metallic center coordinated to two units of iminic ligands LnC (n = 1–4, L1C–L4C), which are derivatives of pyridoxal hydrochloride and anilines with thioether function containing one to four carbons. Depending on the source of the cobalt ion and the addition (or not) of a non-coordinating counterion, complexes with distinct structures may form, being categorized into two series: [CoIII(LnC)(L0C)] (n = 1–4, C1’–C4’) with a LnC ligand and a ligand that has a thiolate function which cleaves the C-S(thioether) bond (L0C) and [CoIII(LnC)2]PF6 (n = 1–4, C1–C4) with two similar units of the same LnC ligand. The occurrence (or not) of cleavage in the eight complexes was observed by elucidating the solid-state structures by single crystal X-ray diffraction. This exciting method allows the synthesis of CoIII complexes without cleaving the C-S bonds from the ligands, thereby not requiring an inert atmosphere in the reaction systems. The synthesized complexes were evaluated by in silico calculations on viable biological targets such as deoxyribonucleic acid, superoxide dismutase enzyme, human serum albumin, and the structural spike glycoprotein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) with the receptor binding domain (RBD) in both up and down conformations without and in complex with the cellular receptor angiotensin-converting enzyme 2 (ACE2). Overall, in silico results suggested that all the inorganic complexes under study are potential anticancer/antiviral agents; however, C4 and C4’ are the best candidates for future in vitro assays.
Full article
(This article belongs to the Special Issue Evaluation of the Potential Biological Activity of Metallo-Drugs)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00171/article_deploy/html/images/inorganics-12-00171-ag-550.jpg?1718702625)
Graphical abstract
Open AccessArticle
Silver Nanoparticle-Immobilized Cotton Fabric Serves as Flexible Surface-Enhanced Raman Scattering Substrate for Detection of Toxin
by
Bharat Baruah and Michael Woods
Inorganics 2024, 12(6), 170; https://doi.org/10.3390/inorganics12060170 - 17 Jun 2024
Abstract
►▼
Show Figures
We designed composite materials containing silver nanoparticles (AgNPs) and cotton fabric (CF). The cellulose in cotton fabric contains -OH groups. These -OH groups were deprotonated by a pretreatment process, and Ag+ ions were allowed to bind. In the consecutive step, the Ag
[...] Read more.
We designed composite materials containing silver nanoparticles (AgNPs) and cotton fabric (CF). The cellulose in cotton fabric contains -OH groups. These -OH groups were deprotonated by a pretreatment process, and Ag+ ions were allowed to bind. In the consecutive step, the Ag+ ions were reduced to fiber-bound AgNPs, generating AgNP@CF. Three different AgNP@CF composites were created, varying the concentration of the precursor AgNO3 solution. The composite materials were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray analysis (EDX), powder X-ray diffraction (XRD), and FTIR spectroscopy. The AgNP@CF composites were assessed for the detection of toxins using the surface-enhanced Raman scattering (SERS) technique.
Full article
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00170/article_deploy/html/images/inorganics-12-00170-g001-550.jpg?1718622564)
Figure 1
Open AccessArticle
Low-Temperature Fast Firing Preparation of Zn2TiO4 Crystalline Photovoltaic Glass Ink and Its Properties
by
Yongjian Chen, Weixia Dong, Qifu Bao, Tiangui Zhao, Zhipeng Cheng and Yan Xu
Inorganics 2024, 12(6), 169; https://doi.org/10.3390/inorganics12060169 - 17 Jun 2024
Abstract
►▼
Show Figures
A Zn2TiO4 crystalline photovoltaic glass ink was prepared by fast firing at 700 °C for 5 min by the glass crystallisation method, which effectively improved the reflectivity and acid resistance of the photovoltaic glass ink coating. The phase, morphology and
[...] Read more.
A Zn2TiO4 crystalline photovoltaic glass ink was prepared by fast firing at 700 °C for 5 min by the glass crystallisation method, which effectively improved the reflectivity and acid resistance of the photovoltaic glass ink coating. The phase, morphology and properties of the samples were tested by XRD, SEM and UV-vis diffuse reflection, etc. The enhanced reflectivity mechanism was proposed. The results showed that the increase in ZnO/SiO2 ratio reduced the transition temperature (Tg) and crystallisation temperature (Tp) of the glass melt, which could promote the crystallinity of Zn2TiO4 in photovoltaic glass ink coatings and thus improve the acid resistance of photovoltaic glass inks. Significant improvement in reflectance and whiteness is due to the Zn2TiO4 crystallinity growth, which fills in the pores of the ink surface, and TiO2 fillers keep almost the same surface roughness (0.2 µm) and wetting angle (5.2°). Typical samples achieved 89.2% of the whiteness and 88.0% of the reflectance, and the weight loss in acid was 3.9 mg/cm2, which could improve the efficiency of solar power generation.
Full article
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00169/article_deploy/html/images/inorganics-12-00169-g001-550.jpg?1718587163)
Figure 1
Open AccessReview
Cell Metabolomics to Guide the Design of Metal-Based Compounds
by
Veronica Ghini
Inorganics 2024, 12(6), 168; https://doi.org/10.3390/inorganics12060168 - 15 Jun 2024
Abstract
Despite the increasing interest in the development of novel metal-based compounds for cancer treatment, these molecules are currently poorly characterized in mechanistic terms, due to their multiple macromolecular targets inside the cells. In this review, we show how 1H NMR metabolomics provides
[...] Read more.
Despite the increasing interest in the development of novel metal-based compounds for cancer treatment, these molecules are currently poorly characterized in mechanistic terms, due to their multiple macromolecular targets inside the cells. In this review, we show how 1H NMR metabolomics provides a powerful tool to investigate the metabolic perturbations induced by metal-compounds in cells. The chemical identity and concentration of metabolites detected in cell lysates and their respective growth media by NMR can be viewed as a global fingerprint that describes the response to drug treatment. In this framework, the applications of NMR-based metabolomics to study cellular effects induced by the treatment of cells with anticancer metal-based compounds are comprehensively reviewed.
Full article
(This article belongs to the Special Issue Rational Design of Pharmacologically Active Metal-Based Compounds)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00168/article_deploy/html/images/inorganics-12-00168-g001-550.jpg?1718446698)
Figure 1
Open AccessArticle
Investigating the Anticancer Properties of Novel Functionalized Platinum(II)–Terpyridine Complexes
by
Roberta Panebianco, Maurizio Viale, Valentina Giglio and Graziella Vecchio
Inorganics 2024, 12(6), 167; https://doi.org/10.3390/inorganics12060167 - 15 Jun 2024
Abstract
Novel platinum(II) complexes of 4′-substituted terpyridine ligands were synthesized and characterized. Each complex had a different biomolecule (amine, glucose, biotin and hyaluronic acid) as a targeting motif, potentially improving therapeutic outcomes. We demonstrated that complexes can self-assemble in water into about 150 nm
[...] Read more.
Novel platinum(II) complexes of 4′-substituted terpyridine ligands were synthesized and characterized. Each complex had a different biomolecule (amine, glucose, biotin and hyaluronic acid) as a targeting motif, potentially improving therapeutic outcomes. We demonstrated that complexes can self-assemble in water into about 150 nm nanoparticles. Moreover, the complexes were assayed in vitro toward a panel of human cancer cell lines (ovarian adenocarcinoma A2780, lung cancer A549, breast adenocarcinoma MDA-MB-231, neuroblastoma SHSY5Y) to explore the impact of the pendant moiety on the terpyridine toxicity. The platinum complex of terpyridine amine derivative, [Pt(TpyNH2)Cl]Cl, showed the best antiproliferative effect, which was higher than cisplatin and [Pt(Tpy)Cl]Cl. Selective in vitro antiproliferative activity was achieved in A549 cancer cells with the Pt–HAtpy complex. These findings underline the potential of these novel platinum(II) complexes in cancer therapy and highlight the importance of tailored molecular design for achieving enhanced therapeutic effects.
Full article
(This article belongs to the Special Issue Evaluation of the Potential Biological Activity of Metallo-Drugs)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00167/article_deploy/html/images/inorganics-12-00167-g001-550.jpg?1718959963)
Figure 1
Open AccessArticle
Sodium Filling in Superadamantoide Na1.36(Si0.86Ga0.14)2As2.98 and the Mixed Valent Arsenidosilicate-Silicide Li1.5Ga0.9Si3.1As4
by
Marlo Schöneich, Lucas G. Balzat, Bettina V. Lotsch and Dirk Johrendt
Inorganics 2024, 12(6), 166; https://doi.org/10.3390/inorganics12060166 - 14 Jun 2024
Abstract
Na1.36(Si0.86Ga0.14)2As2.98 and Li1.5Ga0.9Si3.1As4 were synthesized by heating mixtures of the elements at 950 °C. The crystal structures were determined by single crystal X-ray diffraction (Na1.36(Si
[...] Read more.
Na1.36(Si0.86Ga0.14)2As2.98 and Li1.5Ga0.9Si3.1As4 were synthesized by heating mixtures of the elements at 950 °C. The crystal structures were determined by single crystal X-ray diffraction (Na1.36(Si0.86Ga0.14)2As2.98: I41/a, Z = 100, a = 19.8772(4) Å, c = 37.652(1) Å; Li1.5Ga0.9Si3.1As4: C2/c, Z = 8, a = 10.8838(6) Å, b = 10.8821(6) Å, c = 13.1591(7) Å). Na1.36(Si0.86Ga0.14)2As2.98 crystallizes similar to NaSi2P3 with interpenetrating networks of vertex-sharing T4 and T5 supertetrahedra. Gallium substitution at the silicon sites increases the charge of the cluster network, which is compensated for by a 36% higher sodium content. Since in contrast to NaSi2P3, all sodium sites are now fully occupied, there is no significant ion mobility, as indicated by 23Na-NMR. Consequently, the total sodium-ion conductivity of Na1.36(Si0.86Ga0.14)2As2.98 amounts to only 1.6(1) × 10−7 S cm−1 and is therefore three orders of magnitude lower than in NaSi2P3. Li1.5Ga0.9Si3.1As4 crystallizes in a new structure type with layers of edge-sharing (Si1−xGax)As4 tetrahedra alternating with layers that contain infinite Sin zigzag chains. Lithium ions reside in channels between the chains, and thus, the structure does not provide three dimensional pathways for ion conduction and the measured total Li-ion conductivity amounts to only 1.3(1) × 10−7 S cm−1.
Full article
(This article belongs to the Section Inorganic Solid-State Chemistry)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00166/article_deploy/html/images/inorganics-12-00166-ag-550.jpg?1718362392)
Graphical abstract
Open AccessArticle
MOF-Derived Fe2CoSe4@NC and Fe2NiSe4@NC Composite Anode Materials towards High-Performance Na-Ion Storage
by
Hangxuan Xie, Wei Zhang, Chao Wang, Shangcheng Zhao, Zhentao Hao, Xiaolian Huang, Kanghua Miao and Xiongwu Kang
Inorganics 2024, 12(6), 165; https://doi.org/10.3390/inorganics12060165 - 12 Jun 2024
Abstract
Binary transition metal selenides (BTMSs) are more promising than single transition metal selenides (TMS) as anode materials of sodium-ion batteries (SIBs). However, it is still very challenging to prepare high-performance BTMSs in the pure phase, instead of a mixture of two TMSs. In
[...] Read more.
Binary transition metal selenides (BTMSs) are more promising than single transition metal selenides (TMS) as anode materials of sodium-ion batteries (SIBs). However, it is still very challenging to prepare high-performance BTMSs in the pure phase, instead of a mixture of two TMSs. In this study, a binary metal center-based MOF derived selenization strategy was developed to prepare iron–cobalt selenide (Fe2CoSe4@NC) and iron–nickel selenide (Fe2NiSe4@NC) nanocomposites in the single phase and when wrapped with carbon layers. As the anode material of SIBs, Fe2CoSe4@NC exhibits higher long-term cycling performance than Fe2NiSe4@NC, maintaining a capacity of 352 mAh g−1 after 2100 cycles at 1.0 A g−1, which is ascribed to the higher percentage of the nanopores, larger lattice spacing, and faster Na+ diffusion rate in the electrode materials of the former rather than the latter.
Full article
(This article belongs to the Special Issue Advanced Electrode Materials for Energy Storage Devices)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00165/article_deploy/html/images/inorganics-12-00165-g001-550.jpg?1718878012)
Figure 1
Open AccessArticle
CuFe2O4 Nanofiber Incorporated with a Three-Dimensional Graphene Sheet Composite Electrode for Supercapacitor and Electrochemical Sensor Application
by
Sivaramakrishnan Vinothini, Arjunan Karthi Keyan, Subramanian Sakthinathan, Te-Wei Chiu and Naratip Vittayakorn
Inorganics 2024, 12(6), 164; https://doi.org/10.3390/inorganics12060164 - 12 Jun 2024
Abstract
The demand for regenerative energy and electric automotive applications has grown in recent decades. Supercapacitors have multiple applications in consumer alternative electronic products due to their excellent energy density, rapid charge/discharge time, and safety. CuFe2O4-incorporated three-dimensional graphene sheet (3DGS)
[...] Read more.
The demand for regenerative energy and electric automotive applications has grown in recent decades. Supercapacitors have multiple applications in consumer alternative electronic products due to their excellent energy density, rapid charge/discharge time, and safety. CuFe2O4-incorporated three-dimensional graphene sheet (3DGS) nanocomposites were studied by different characterization studies such as X-ray diffraction, transmission electron microscopy, and scanning electron microscopy. The electrochemical studies were based on cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS) measurements. As prepared, 3DGS/CuFe2O4 nanocomposites exhibited an excellent surface area, high energy storage with appreciable durability, and excellent electrocatalysis properties. A supercapacitor with 3DGS/CuFe2O4-coated nickel foam (NF) electrodes exhibited an excellent specific capacitance of 488.98 Fg−1, a higher current density, as well as a higher power density. After charge–discharge cycles in a 2.0 M KOH aqueous electrolyte solution, the 3DGS/CuFe2O4/NF electrodes exhibited an outstanding cyclic stability of roughly 95% at 10 Ag−1, indicating that the prepared nanocomposites could have the potential for energy storage applications. Moreover, the 3DGS/CuFe2O4 electrode exhibited an excellent electrochemical detection of chloramphenicol with a detection limit of 0.5 µM, linear range of 5–400 µM, and electrode sensitivity of 3.7478 µA µM−1 cm−2.
Full article
(This article belongs to the Special Issue Advanced Inorganic Nanomaterials for Energy Conversion and Catalysis Applications)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00164/article_deploy/html/images/inorganics-12-00164-ag-550.jpg?1718186810)
Graphical abstract
Open AccessArticle
Electronic and Steric Effects on Oxygen Reactivities of NiFeSe Complexes Related to O2-Damaged [NiFeSe]-Hydrogenases’ Active Site
by
Yuchen Qiao, Enting Xu, Yameng Hao, Xuemei Yang and Ming Ni
Inorganics 2024, 12(6), 163; https://doi.org/10.3390/inorganics12060163 - 10 Jun 2024
Abstract
Hydrogen has the potential to serve as a new energy resource, reducing greenhouse gas emissions that contribute to climate change. Natural hydrogenases exhibit impressive catalytic abilities for hydrogen production, but they often lack oxygen tolerance. Oxygen-tolerant hydrogenases can work under oxygen by reacting
[...] Read more.
Hydrogen has the potential to serve as a new energy resource, reducing greenhouse gas emissions that contribute to climate change. Natural hydrogenases exhibit impressive catalytic abilities for hydrogen production, but they often lack oxygen tolerance. Oxygen-tolerant hydrogenases can work under oxygen by reacting with oxygen to form inactive states, which can be reactivated to catalytic states by oxygen atom removal. Herein, we synthesized three NiFeSe complexes: (NiSe(CH3)FeCp, NiSe(CH3)FeCp* and NiSe(PhNMe2)FeCp) with features of active sites of [NiFeSe]-H2ases, which are the oxygen-tolerant hydrogenases, and we investigated the influence of electronic and steric factors on the oxygen reaction of these “biomimetic” complexes. In our research, we found that they react with oxygen, forming 1-oxygen species, which is related to the O2-damaged [NiFeSe] active site. Through a comparative analysis of oxygen reactions, we have discovered that electronic factors and steric hindrance on Se play a significant role in determining the oxygen reactivity of NiFe complexes related to hydrogenases’ active sites.
Full article
(This article belongs to the Special Issue Metal Complexes Diversity: Synthesis, Conformations, and Bioactivity)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00163/article_deploy/html/images/inorganics-12-00163-g001-550.jpg?1718004857)
Figure 1
Open AccessArticle
Limited Domain SnSb@N-PC Composite Material as a High-Performance Anode for Sodium Ion Batteries
by
Zhaomeng Liu, Hailong Ren, Shizheng Fu, Wentao Yang, Yihua Li, Yang Jiao and Botao Zhang
Inorganics 2024, 12(6), 162; https://doi.org/10.3390/inorganics12060162 - 7 Jun 2024
Abstract
Anode materials have a vital influence on the performance of sodium ion batteries. In this paper, SnSb nanoparticles were distributed uniformly in N-doped three-dimensional porous carbon (SnSb@N-PC), which effectively avoided the agglomeration of alloy nanoparticles and greatly improved the capacity retention rate of
[...] Read more.
Anode materials have a vital influence on the performance of sodium ion batteries. In this paper, SnSb nanoparticles were distributed uniformly in N-doped three-dimensional porous carbon (SnSb@N-PC), which effectively avoided the agglomeration of alloy nanoparticles and greatly improved the capacity retention rate of SnSb@N-PC. At the same time, the porous carbon substrate brings higher conductivity, larger specific surface area, and more sodium storage sites, which makes the material obtain excellent sodium storage properties. The first discharge-specific capacity of SnSb@N-PC was 846.3 mAh g−1 at the current density of 0.1 A g−1, and the specific capacity remained at 483 mAh g−1 after 100 cycles. Meanwhile, the specific capacity of SnSb@N-PC was kept at 323 mAh g−1 after 400 cycles at a high current density of 1.5 A g−1, which indicated that the recombination of SnSb with porous carbon played a key role in the electrochemical performance of SnSb. The contribution of capacitance contrast capacity was able to reach more than 90% by the cyclic voltammetry (CV) test at high sweep speed, and larger Na+ diffusivity was obtained by the constant current intermittent titration technique (GITT) test, which explains the good rate performance of SnSb@N-PC.
Full article
(This article belongs to the Special Issue New Insights in Potassium Ion Batteries: Materials and Properties)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00162/article_deploy/html/images/inorganics-12-00162-g001-550.jpg?1719282959)
Figure 1
Open AccessArticle
Alkali Metal-Ion Binding by a Model Macrocycle Containing a C-I···N Halogen Bonded Network: A DFT Study of C-I···M+ and N···M+ Binding Interactions, M+ = Li+, Na+, K+, and Rb+
by
Rubén D. Parra
Inorganics 2024, 12(6), 161; https://doi.org/10.3390/inorganics12060161 - 6 Jun 2024
Abstract
The complexation of an alkali metal ion by a model macrocycle is examined using the M05-2X/DGDZVP DFT method. The macrocycle is built by connecting three cyclopenta[b]pyrrole motifs with alternating acetylene and ethylene linkages. Replacing one of the C-H bonds in each motif with
[...] Read more.
The complexation of an alkali metal ion by a model macrocycle is examined using the M05-2X/DGDZVP DFT method. The macrocycle is built by connecting three cyclopenta[b]pyrrole motifs with alternating acetylene and ethylene linkages. Replacing one of the C-H bonds in each motif with a C-I bond allows for the formation of three intramolecular C-I···N halogen bonds. Two distinct binding modes were found for the complexation of each metal ion. In one mode, the binding of the ion occurs solely by the iodine atoms, via I···M+ interactions, while maintaining the integrity of the halogen bonds. The complexation energies are in the range −66 to −35 kcal/mol. In the other mode, the binding of the ion includes one nitrogen atom as well, with binding energies in the range of −71 to −38 kcal/mol. In this binding mode, the halogen bond network is weakened. The presence and strength of the interactions are further examined using AIM and NBO calculations. Lastly, the geometries for the transition state structures linking the less stable to the more stable metal ion complexes were obtained, and their calculated Gibbs free energy barriers were found in the range of 1.6 to 1.9 kcal/mol.
Full article
(This article belongs to the Special Issue Studies on Metal-Ion Binding by Halogen-Bonded Structures)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00161/article_deploy/html/images/inorganics-12-00161-ag-550.jpg?1717664879)
Graphical abstract
Open AccessArticle
Physicochemical and Toxicological Screening of Silver Nanoparticle Biosynthesis from Punica granatum Peel Extract
by
Oana Silvana Sarău, Elena-Alina Moacă, Alexandra-Denisa Semenescu, Raluca Dumitru, Alex-Robert Jijie, Marioara Poenaru, Cristina-Adriana Dehelean and Adelina Chevereşan
Inorganics 2024, 12(6), 160; https://doi.org/10.3390/inorganics12060160 - 4 Jun 2024
Abstract
►▼
Show Figures
Silver nanoparticles (AgNPs) were successfully synthesized via the biological route using a 1 M silver nitrate (AgNO3) aqueous solution and an ethanolic peel extract of Punica granatum (Pg), at 60 °C. The physicochemical analysis revealed the formation of green synthesized Pg-AgNPs
[...] Read more.
Silver nanoparticles (AgNPs) were successfully synthesized via the biological route using a 1 M silver nitrate (AgNO3) aqueous solution and an ethanolic peel extract of Punica granatum (Pg), at 60 °C. The physicochemical analysis revealed the formation of green synthesized Pg-AgNPs with a semi-spherical shape, non-uniformly distributed, and a particle size distribution between 5 and 100 nm. As regards the preliminary in vitro toxicological screening, the green synthesized Pg-AgNPs did not significantly affect the neonatal BALB/c epidermal cells’ viability (JB6 Cl 41-5a) at lower concentrations and did not produce visible changes in the morphology of the JB6 Cl 41-5a cells. In contrast, at higher concentrations (>50 μg/mL), the green Pg-AgNPs exhibited an important decrease in cell viability and confluency. In addition, the impact of Pg-AgNPs on cell membrane integrity suggests a potential cytotoxic effect. Contrary to the in vitro assays, after the evaluation of the anti-irritant effect in ovo, the lower concentration of Pg-AgNPs (10 μg/mL) produced hemorrhage and lysis when applied to the chorioallantoic membrane, while at 50 μg/mL, only slight coagulation was observed. Therefore, regarding the in ovo toxicological screening, the higher concentration of the Pg-AgNPs exhibited a better safety profile compared to the lower concentration, as indicated by the irritation score.
Full article
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00160/article_deploy/html/images/inorganics-12-00160-g001-550.jpg?1717508016)
Figure 1
Open AccessArticle
Mononuclear Fe(III) Schiff Base Complex with Trans-FeO4N2 Chromophore of o-Aminophenol Origin: Synthesis, Characterisation, Crystal Structure, and Spin State Investigation
by
Dawit Tesfaye, Jonas Braun, Mamo Gebrezgiabher, Juraj Kuchár, Juraj Černák, Taju Sani, Abbasher Gismelseed, Tim Hochdörffer, Volker Schünemann, Christopher E. Anson, Annie K. Powell and Madhu Thomas
Inorganics 2024, 12(6), 159; https://doi.org/10.3390/inorganics12060159 - 3 Jun 2024
Abstract
A new iron(III) complex (Et3NH)2[Fe(L)2](ClO4)·MeOH (1) where H2L = 2-{(E)-[2-hydroxyphenyl)imino]methyl}phenol has been synthesised and characterised by single crystal XRD, elemental analysis and DC magnetic susceptibility measurements. The dianionic ligands L2− coordinate in
[...] Read more.
A new iron(III) complex (Et3NH)2[Fe(L)2](ClO4)·MeOH (1) where H2L = 2-{(E)-[2-hydroxyphenyl)imino]methyl}phenol has been synthesised and characterised by single crystal XRD, elemental analysis and DC magnetic susceptibility measurements. The dianionic ligands L2− coordinate in a tridentate fashion with the Fe(III) through their deprotonated phenolic oxygens and azomethine nitrogen atoms, resulting in a trans-FeO4N2 chromophore. Variable-temperature magnetic measurements were performed between 300 and 5 K under an applied field of 0.1 T and show that 1 is in the high spin state (S = 5/2) over the whole measured temperature range. This is confirmed by Mössbauer spectroscopy at 77 and 300 K.
Full article
(This article belongs to the Section Coordination Chemistry)
►▼
Show Figures
![](https://pub.mdpi-res.com/inorganics/inorganics-12-00159/article_deploy/html/images/inorganics-12-00159-g001-550.jpg?1717420071)
Figure 1
![Inorganics inorganics-logo](https://pub.mdpi-res.com/img/journals/inorganics-logo.png?f7b441c4ee8d33b9)
Journal Menu
► ▼ Journal Menu-
- Inorganics Home
- Aims & Scope
- Editorial Board
- Reviewer Board
- Topical Advisory Panel
- Instructions for Authors
- Special Issues
- Topics
- Sections & Collections
- Article Processing Charge
- Indexing & Archiving
- Editor’s Choice Articles
- Most Cited & Viewed
- Journal Statistics
- Journal History
- Journal Awards
- Conferences
- Editorial Office
Journal Browser
► ▼ Journal BrowserHighly Accessed Articles
Latest Books
E-Mail Alert
News
Topics
Topic in
Catalysts, Chemistry, Inorganics, Molbank, Molecules, Polymers
Heterocyclic Carbene Catalysis
Topic Editors: Sabine Berteina-Raboin, Thierry Besson, Patrick RollinDeadline: 30 November 2024
Topic in
Catalysts, Crystals, Inorganics, Materials, Molecules, Solids
Advances in Inorganic Synthesis
Topic Editors: Andrei V. Shevelkov, Maxim N. SokolovDeadline: 31 December 2024
Topic in
Chemistry, Inorganics, Molecules, IJMS
Recent Advances in Coumarin Derivatives and Their Metal Complexes
Topic Editors: Dušan Dimić, Edina Avdović, Dejan MilenkovićDeadline: 28 February 2025
![loading...](https://pub.mdpi-res.com/img/loading_circle.gif?9a82694213036313?1718874496)
Conferences
Special Issues
Special Issue in
Inorganics
Synthesis, Properties and Applications of MXenes-Based Materials
Guest Editors: Yuan Tian, Yongling AnDeadline: 30 June 2024
Special Issue in
Inorganics
Novel Functional Ceramics
Guest Editors: Oana-Cătălina Mocioiu, Ana-Maria MocioiuDeadline: 20 July 2024
Special Issue in
Inorganics
Research on Ferrocene and Ferrocene-Containing Compounds
Guest Editors: Mojca Čakić Semenčić, Lidija BarišićDeadline: 31 July 2024
Special Issue in
Inorganics
Rational Design of Pharmacologically Active Metal-Based Compounds
Guest Editors: Irena Kostova, Luciano SasoDeadline: 31 August 2024
Topical Collections
Topical Collection in
Inorganics
Coordination Complexes for Dye-Sensitized Solar Cells (DSCs)
Collection Editor: Catherine Housecroft