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Molecules
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Functional Metal-Organic Frameworks: Exploring Guest-Host Interactions and Sorption Applications
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Functional Metal-Organic Frameworks: Exploring Guest-Host Interactions and Sorption Applications

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Inorganic Chemistry".

Deadline for manuscript submissions: 31 August 2024 | Viewed by 1079

Special Issue Editors

Dr. Haomiao Xie

E-Mail Website
Guest Editor
Department of Chemistry and International Institute of Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
Interests: metal-organic framework; synthesis; coordination chemistry; organometallics
Special Issues, Collections and Topics in MDPI journals
Dr. Luís Cunha Silva

E-Mail Website1 Website2
Guest Editor
LAQV-REQUIMTE, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
Interests: materials science and catalysis; coordination and inorganic chemistry; multifunctional metal-organic frameworks; high nuclearity coordination complexes; sustainable crystalline coordination polymers; structural chemistry; X-ray diffraction analysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Metal–organic frameworks are a class of porous materials composed of metal ions or clusters connected by organic ligands. They exhibit diverse structures and properties, making them highly versatile for various applications, including gas storage and separation, catalysis, sensing, and drug delivery.

In this Special Issue, we welcome research articles or reviews that delve into the functional aspects of MOFs, particularly emphasizing the interactions between guest molecules (such as gases, solvents, or ions) and the host framework. The exploration of these interactions is crucial for understanding the sorption mechanisms and designing MOFs with tailored properties for specific applications.

Overall, this Special Issue will serve as a platform for researchers to exchange insights, present cutting-edge developments, and contribute to the advancement of functional metal–organic frameworks and their diverse applications in various fields.

Dr. Haomiao Xie
Dr. Luís Cunha Silva
Guest Editors

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. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). 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

  • metal-organic frameworks (MOFs)
  • guest-host interactions
  • gas storage
  • gas separation
  • porous materials

Published Papers (2 papers)

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Research

21 pages, 3259 KiB  
Article
Novel Application of Metal–Organic Frameworks as Efficient Sorbents for Solid-Phase Extraction of Chemical Warfare Agents and Related Compounds in Water Samples
by Jakub Woźniak, Stanisław Popiel, Jakub Nawała, Barbara Szczęśniak, Jerzy Choma and Dariusz Zasada
Molecules 2024, 29(14), 3259; https://doi.org/10.3390/molecules29143259 - 10 Jul 2024
Viewed by 262
Abstract
In this work, we test metal–organic frameworks (MOFs) as sorbents in the solid-phase extraction (SPE) technique to determine chemical warfare agents (CWAs) and their related compounds in water samples. During this study, we used 13 target compounds to test the selectivity of MOFs [...] Read more.
In this work, we test metal–organic frameworks (MOFs) as sorbents in the solid-phase extraction (SPE) technique to determine chemical warfare agents (CWAs) and their related compounds in water samples. During this study, we used 13 target compounds to test the selectivity of MOFs thoroughly. Three MOFs were used: MIL-100(Fe), ZIF-8(Zn), and UiO-66(Zr). The obtained materials were characterized using FT-IR/ATR, SEM, and XRD. CWA’s and related compounds were analyzed using gas chromatography coupled with tandem mass spectrometry (GC-MS/MS). The effect of the type of elution solvent and the amount of sorbent (MOFs) in the column on the efficiency of the conducted extraction were verified. The LOD ranged from 0.04 to 7.54 ng mL−1, and the linearity range for the analytes tested extended from 0.11/22.62 (depending on the compound) to 1000 ng mL−1. It was found that MOFs showed the most excellent selectivity to compounds having aromatic rings in their structure or a “spread” spatial structure. The best recoveries were obtained for DPAA, CAP, and malathion. Environmental water samples collected from the Baltic Sea were analyzed using an optimized procedure to verify the developed method’s usefulness. Full article
(This article belongs to the Special Issue Functional Metal-Organic Frameworks: Exploring Guest-Host Interactions and Sorption Applications)
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13 pages, 5162 KiB  
Article
High H2O-Assisted Proton Conduction in One Highly Stable Sr(II)-Organic Framework Constructed by Tetrazole-Based Imidazole Dicarboxylic Acid
by Junyang Feng, Ying Li, Lixia Xie, Jinzhao Tong and Gang Li
Molecules 2024, 29(11), 2656; https://doi.org/10.3390/molecules29112656 - 4 Jun 2024
Viewed by 557
Abstract
Solid electrolyte materials with high structural stability and excellent proton conductivity (σ) have long been a popular and challenging research topic in the fuel cell field. This problem can be addressed because of the crystalline metal–organic frameworks’ (MOFs’) high structural stability, adjustable framework [...] Read more.
Solid electrolyte materials with high structural stability and excellent proton conductivity (σ) have long been a popular and challenging research topic in the fuel cell field. This problem can be addressed because of the crystalline metal–organic frameworks’ (MOFs’) high structural stability, adjustable framework composition, and dense H-bonded networks. Herein, one highly stable Sr(II) MOF, {[Sr(H2tmidc)2(H2O)3]·4H2O}n (1) (H3tmidc = 2-(1H-tetrazolium-1-methylene)-1H-imidazole-4,5-dicarboxylic acid) was successfully fabricated, which was structurally characterized by single-crystal X-ray diffraction and electrochemically examined by the AC impedance determination. The results demonstrated that the σ of the compound manifested a positive dependence on temperature and humidity, and the optimal proton conductivity is as high as 1.22 × 10−2 S/cm under 100 °C and 98% relative humidity, which is at the forefront of reported MOFs with ultrahigh σ. The analysis of the proton conduction mechanism reveals that numerous tetrazolium groups, carboxyl groups, coordination, and crystallization water molecules in the framework are responsible for the high efficiency of proton transport. This work offers a fresh perspective on how to create novel crystalline proton conductive materials. Full article
(This article belongs to the Special Issue Functional Metal-Organic Frameworks: Exploring Guest-Host Interactions and Sorption Applications)
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