Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
7.8
5.6
Journals
IJMS
Special Issues
Recent Advances in Coordination Chemistry of Metal Complexes Based on...
ijms-logo
Submit to Special Issue Submit Abstract to Special Issue Review for IJMS Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Recent Advances in Coordination Chemistry of Metal Complexes Based on Schiff Base Ligands: Structure-Property Relationships and Applications, 2nd Edition

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Physical Chemistry and Chemical Physics".

Deadline for manuscript submissions: 10 June 2024 | Viewed by 4442

Special Issue Editor

Dr. Barbara Miroslaw

E-Mail Website
Guest Editor
Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, Pl. Marii Curie-Skłodowskiej 3, 20-031 Lublin, Poland
Interests: halogen bonding; supramolecular chemistry; crystal engineering; coordination chemistry; 3d-4f complexes; luminescence; non-covalent interactions; structure-properties relationship; topological studies; X-ray crystallography
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues, 

Coordination chemistry of metal complexes based on Schiff base ligands is a broad research area in which many scientists from various disciplines cross paths. Starting from remarkable supramolecular architecture and interesting biological, luminescent, or magnetic properties, all the way up to sophisticated applications such as LED, organic solar cell sensitizers, functionalization of quantum dot nanocomposites, hydrogel or liquid crystal formation, and potential anti-COVID-19 activity, the topics that this field may cover are numerous.

This Special Issue entitled “Recent Advances in Coordination Chemistry of Metal Complexes Based on Schiff Base Ligands: Structure-Property Relationships and Applications, 2nd Edition” will serve as a platform for the exchange of experience and achievements in this field of science.

We encourage all scientists active in a wide range of disciplines to contribute to this Special Issue by presenting their up-to-date, interesting results, including data from fundamental research up to practical applications. We aim to highlight the most recent advances, challenges, and perspectives in this research area. Scientists are invited to contribute original papers or short reviews on their activity in the field.

Dr. Barbara Miroslaw
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Schiff base
  • coordination chemistry
  • functional materials
  • supramolecular chemistry
  • metal complexes
  • nanocomposites
  • structure–property relationship

Published Papers (6 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

21 pages, 4771 KiB  
Article
Experimental and Computational Studies on the Interaction of DNA with Hesperetin Schiff Base CuII Complexes
by Federico Pisanu, Anna Sykula, Giuseppe Sciortino, Feliu Maseras, Elzbieta Lodyga-Chruscinska and Eugenio Garribba
Int. J. Mol. Sci. 2024, 25(10), 5283; https://doi.org/10.3390/ijms25105283 - 13 May 2024
Viewed by 451
Abstract
The interactions with calf thymus DNA (CT-DNA) of three Schiff bases formed by the condensation of hesperetin with benzohydrazide (HHSB or L1H3), isoniazid (HIN or L2H3), or thiosemicarbazide (HTSC or L3H3) [...] Read more.
The interactions with calf thymus DNA (CT-DNA) of three Schiff bases formed by the condensation of hesperetin with benzohydrazide (HHSB or L1H3), isoniazid (HIN or L2H3), or thiosemicarbazide (HTSC or L3H3) and their CuII complexes (CuHHSB, CuHIN, and CuHTSC with the general formula [CuLnH2(AcO)]) were evaluated in aqueous solution both experimentally and theoretically. UV–Vis studies indicate that the ligands and complexes exhibit hypochromism, which suggests helical ordering in the DNA helix. The intrinsic binding constants (Kb) of the Cu compounds with CT-DNA, in the range (2.3–9.2) × 106, from CuHTSC to CuHHSB, were higher than other copper-based potential drugs, suggesting that π–π stacking interaction due to the presence of the aromatic rings favors the binding. Thiazole orange (TO) assays confirmed that ligands and Cu complexes displace TO from the DNA binding site, quenching the fluorescence emission. DFT calculations allow for an assessment of the equilibrium between [Cu(LnH2)(AcO)] and [Cu(LnH2)(H2O)]+, the tautomer that binds CuII, amido (am) and not imido (im), and the coordination mode of HTSC (O−, N, S), instead of (O−, N, NH2). The docking studies indicate that the intercalative is preferred over the minor groove binding to CT-DNA with the order [Cu(L1H2am)(AcO)] > [Cu(L2H2am)(AcO)] ≈ TO ≈ L1H3 > [Cu(L3H2am)(AcO)], in line with the experimental Kb constants, obtained from the UV–Vis spectroscopy. Moreover, dockings predict that the binding strength of [Cu(L1H2am)(AcO)] is larger than [Cu(L1H2am)(H2O)]+. Overall, the results suggest that when different enantiomers, tautomers, and donor sets are possible for a metal complex, a computational approach should be recommended to predict the type and strength of binding to DNA and, in general, to macromolecules. Full article
(This article belongs to the Special Issue Recent Advances in Coordination Chemistry of Metal Complexes Based on Schiff Base Ligands: Structure-Property Relationships and Applications, 2nd Edition)
►▼ Show Figures

Figure 1

15 pages, 2678 KiB  
Article
Oxidovanadium(V) Schiff Base Complexes Derived from Chiral 3-amino-1,2-propanediol Enantiomers: Synthesis, Spectroscopic Studies, Catalytic and Biological Activity
by Grzegorz Romanowski, Justyna Budka and Iwona Inkielewicz-Stepniak
Int. J. Mol. Sci. 2024, 25(9), 5010; https://doi.org/10.3390/ijms25095010 - 3 May 2024
Viewed by 463
Abstract
Oxidovanadium(V) complexes, [(+)VOL1-5] and [(–)VOL1-5], with chiral tetradentate Schiff bases, which are products of monocondensation of S(‒)-3-amino-1,2-propanediol or R(+)-3-amino-1,2-propanediol with salicylaldehyde derivatives, have been synthesized. Different spectroscopic methods, viz. 1H and 51V NMR, IR, [...] Read more.
Oxidovanadium(V) complexes, [(+)VOL1-5] and [(–)VOL1-5], with chiral tetradentate Schiff bases, which are products of monocondensation of S(‒)-3-amino-1,2-propanediol or R(+)-3-amino-1,2-propanediol with salicylaldehyde derivatives, have been synthesized. Different spectroscopic methods, viz. 1H and 51V NMR, IR, UV-Vis, and circular dichroism, as well as elemental analysis, have been used for their detailed characterization. Furthermore, the epoxidation of styrene, cyclohexene, and two monoterpenes, S(‒)-limonene and (‒)-α-pinene, using two oxidants, aqueous 30% H2O2 or tert-butyl hydroperoxide (TBHP) in decane, has been studied with catalytic amounts of all complexes. Finally, biological cytotoxicity studies have also been performed with these oxidovanadium(V) compounds for comparison with cis-dioxidomolybdenum(VI) Schiff base complexes with the same chiral ligands, as well as to determine the cytoprotection against the oxidative damage caused by 30% H2O2 in the HT-22 hippocampal neuronal cells in the range of their 10–100 μM concentration. Full article
(This article belongs to the Special Issue Recent Advances in Coordination Chemistry of Metal Complexes Based on Schiff Base Ligands: Structure-Property Relationships and Applications, 2nd Edition)
►▼ Show Figures

Figure 1

6 pages, 5236 KiB  
Communication
Transfer Hydrogenation of Vinyl Arenes and Aryl Acetylenes with Ammonia Borane Catalyzed by Schiff Base Cobalt(II) Complexes
by Maciej Skrodzki, Maciej Zaranek, Giuseppe Consiglio and Piotr Pawluć
Int. J. Mol. Sci. 2024, 25(8), 4363; https://doi.org/10.3390/ijms25084363 - 15 Apr 2024
Viewed by 490
Abstract
A series of bench-stable Co(II) complexes containing hydrazone Schiff base ligands were evaluated in terms of their activity and selectivity in carbon-carbon multiple bond transfer hydrogenation. These cobalt complexes, especially a Co(II) precatalyst bearing pyridine-2-yl-N(Me)N=C-(1-methyl)imidazole-2-yl ligand, activated by LiHBEt3, were successfully [...] Read more.
A series of bench-stable Co(II) complexes containing hydrazone Schiff base ligands were evaluated in terms of their activity and selectivity in carbon-carbon multiple bond transfer hydrogenation. These cobalt complexes, especially a Co(II) precatalyst bearing pyridine-2-yl-N(Me)N=C-(1-methyl)imidazole-2-yl ligand, activated by LiHBEt3, were successfully used in the transfer hydrogenation of substituted styrenes and phenylacetylenes with ammonia borane as a hydrogen source. Key advantages of the reported catalytic system include mild reaction conditions, high selectivity and tolerance to functional groups of substrates. Full article
(This article belongs to the Special Issue Recent Advances in Coordination Chemistry of Metal Complexes Based on Schiff Base Ligands: Structure-Property Relationships and Applications, 2nd Edition)
13 pages, 3169 KiB  
Article
A Dinuclear Copper(II) Complex Electrochemically Obtained via the Endogenous Hydroxylation of a Carbamate Schiff Base Ligand: Synthesis, Structure and Catalase Activity
by Sandra Fernández-Fariña, Isabel Velo-Heleno, Laura Rodríguez-Silva, Marcelino Maneiro, Ana M. González-Noya and Rosa Pedrido
Int. J. Mol. Sci. 2024, 25(4), 2154; https://doi.org/10.3390/ijms25042154 - 10 Feb 2024
Viewed by 491
Abstract
In the present work, we report a neutral dinuclear copper(II) complex, [Cu2(L1)(OH)], derived from a new [N,O] donor Schiff base ligand L1 that was formed after the endogenous hydroxylation of an initial carbamate Schiff base H2L [...] Read more.
In the present work, we report a neutral dinuclear copper(II) complex, [Cu2(L1)(OH)], derived from a new [N,O] donor Schiff base ligand L1 that was formed after the endogenous hydroxylation of an initial carbamate Schiff base H2L coordinated with copper ions in an electrochemical cell. The copper(II) complex has been fully characterized using different techniques, including X-ray diffraction. Direct current (DC) magnetic susceptibility measurements were also performed at variable temperatures, showing evidence of antiferromagnetic behavior. Its catalase-like activity was also tested, demonstrating that this activity is affected by temperature. Full article
(This article belongs to the Special Issue Recent Advances in Coordination Chemistry of Metal Complexes Based on Schiff Base Ligands: Structure-Property Relationships and Applications, 2nd Edition)
►▼ Show Figures

Figure 1

27 pages, 10802 KiB  
Article
Pyrimidine Schiff Bases: Synthesis, Structural Characterization and Recent Studies on Biological Activities
by Iwona Bryndal, Marcin Stolarczyk, Aleksandra Mikołajczyk, Magdalena Krupińska, Anna Pyra, Marcin Mączyński and Agnieszka Matera-Witkiewicz
Int. J. Mol. Sci. 2024, 25(4), 2076; https://doi.org/10.3390/ijms25042076 - 8 Feb 2024
Viewed by 850
Abstract
Recently, 5-[(4-ethoxyphenyl)imino]methyl-N-(4-fluorophenyl)-6-methyl-2-phenylpyrimidin-4-amine has been synthesized, characterized, and evaluated for its antibacterial activity against Enterococcus faecalis in combination with antineoplastic activity against gastric adenocarcinoma. In this study, new 5-iminomethylpyrimidine compounds were synthesized which differ in the substituent(s) of the aromatic ring attached to the [...] Read more.
Recently, 5-[(4-ethoxyphenyl)imino]methyl-N-(4-fluorophenyl)-6-methyl-2-phenylpyrimidin-4-amine has been synthesized, characterized, and evaluated for its antibacterial activity against Enterococcus faecalis in combination with antineoplastic activity against gastric adenocarcinoma. In this study, new 5-iminomethylpyrimidine compounds were synthesized which differ in the substituent(s) of the aromatic ring attached to the imine group. The structures of newly obtained pyrimidine Schiff bases were established by spectroscopy techniques (ESI-MS, FTIR and 1H NMR). To extend the current knowledge about the features responsible for the biological activity of the new 5-iminomethylpyrimidine derivatives, low-temperature single-crystal X-ray analyses were carried out. For all studied crystals, intramolecular N–H∙∙∙N hydrogen bonds and intermolecular C–H∙∙∙F interactions were observed and seemed to play an essential role in the formation of the structures. Simultaneously, their biological properties based on their cytotoxic features were compared with the activities of the Schiff base (III) published previously. Moreover, computational investigations, such as ADME prediction analysis and molecular docking, were also performed on the most active new Schiff base (compound 4b). These results were compared with the highest active compound III. Full article
(This article belongs to the Special Issue Recent Advances in Coordination Chemistry of Metal Complexes Based on Schiff Base Ligands: Structure-Property Relationships and Applications, 2nd Edition)
►▼ Show Figures

Figure 1

8 pages, 1773 KiB  
Communication
An Effectively Uncoupled Gd8 Cluster Formed through Fixation of Atmospheric CO2 Showing Excellent Magnetocaloric Properties
by Jonas Braun, Daniel Seufert, Christopher E. Anson, Jinkui Tang and Annie K. Powell
Int. J. Mol. Sci. 2024, 25(1), 264; https://doi.org/10.3390/ijms25010264 - 23 Dec 2023
Viewed by 1042
Abstract
The [Gd8(opch)8(CO3)4(H2O)8]·4H2O·10MeCN coordination cluster (1) crystallises in P1¯. The Gd8 core is held together by four bridging carbonates derived from atmospheric CO2 [...] Read more.
The [Gd8(opch)8(CO3)4(H2O)8]·4H2O·10MeCN coordination cluster (1) crystallises in P1¯. The Gd8 core is held together by four bridging carbonates derived from atmospheric CO2 as well as the carboxyhydrazonyl oxygens of the 2-hydroxy-3-methoxybenzylidenepyrazine-2-carbohydrazide (H2opch) Schiff base ligands. The magnetic measurements show that the GdIII ions are effectively uncoupled as seen from the low Weiss constant of 0.05 K needed to fit the inverse susceptibility to the Curie–Weiss law. Furthermore, the magnetisation data are consistent with the Brillouin function for eight independent GdIII ions. These features lead to a magnetocaloric effect with a high efficiency which is 89% of the theoretical maximum value. Full article
(This article belongs to the Special Issue Recent Advances in Coordination Chemistry of Metal Complexes Based on Schiff Base Ligands: Structure-Property Relationships and Applications, 2nd Edition)
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-6
Back to TopTop