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Molecules
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Molecule-Based Crystalline Materials, 2nd Edition
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Molecule-Based Crystalline Materials, 2nd Edition

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

Deadline for manuscript submissions: 31 August 2024 | Viewed by 800

Special Issue Editor

Prof. Dr. Zhi-Gang Gu

E-Mail Website
Guest Editor
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
Interests: metal-organic framework; covalent organic framework; film; membrane; nonlinear optics; optical limiting; chirality; circularly polarized luminescence
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Molecule-based crystalline materials, including metal-organic frameworks (MOFs), covalent-organic frameworks (COFs), and supramolecular organic frameworks (SOFs), possess a highly specific surface area, well-defined and ordered pores, variable structures, and tunable chemical functionalities, attracting great attention for their potential application in molecule adsorption and separation, photo/electrocatalysts, biomedical engineering and optical/electric devices and sensors, and so on. This Special Issue aims to provide an overview of the recent discoveries of the synthesis and functions of molecule-based crystalline materials, including new MOF, COF, SOF, and other molecule-based complex designs, the study of their growth mechanics, and their potential application in a broad range of fields.

Prof. Dr. Zhi-Gang Gu
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. 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
  • covalent-organic frameworks
  • supramolecular organic frameworks
  • crystalline materials
  • chemical synthesis
  • functional applications

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Published Papers (1 paper)

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Research

13 pages, 2991 KiB  
Article
The Synthesis, Structure, and Dielectric Properties of a One-Dimensional Hydrogen-Bonded DL-α-Phenylglycine Supramolecular Crown-Ether-Based Inclusion Compound
by Yang Liu, Hongzhi Hu, Huanhuan Qi, Meixia Lv and Zunqi Liu
Molecules 2023, 28(22), 7586; https://doi.org/10.3390/molecules28227586 - 14 Nov 2023
Viewed by 617
Abstract
A novel hydrogen-bonded supramolecular crown-ether-based inclusion compound, [(DL-α-Phenylglycine)(18-crown-6)]+[(CoCl4)0.5]−(1), was obtained via evaporation in a methanolic solution at room temperature using DL-α-phenylglycine, 18-crown-6, cobalt chloride (CoCl2), and hydrochloric acid. Its structure, thermal [...] Read more.
A novel hydrogen-bonded supramolecular crown-ether-based inclusion compound, [(DL-α-Phenylglycine)(18-crown-6)]+[(CoCl4)0.5]−(1), was obtained via evaporation in a methanolic solution at room temperature using DL-α-phenylglycine, 18-crown-6, cobalt chloride (CoCl2), and hydrochloric acid. Its structure, thermal properties, and electrical properties were characterized via elemental analysis, single-crystal X-ray diffraction, variable-temperature infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and variable temperature–variable frequency dielectric constant testing. The compound was a monoclinic crystal system in the C2 space group at low temperature (100 K) and room temperature (293 K). Analysis of the single crystal structure showed that [(CoCl4)0.5]− presented an edge-sharing ditetrahedral structure in the disordered state, while the protonated DL-α-phenylglycine molecule in the disordered state and intramolecular hydroxyl group (-OH) underwent dynamic rocking, causing a significant stretching motion of the O-H···Cl-type one-dimensional hydrogen bond chain. This resulted in dielectric anomalies in the three axes of the crystal, thus showing significant dielectric anisotropy. Full article
(This article belongs to the Special Issue Molecule-Based Crystalline Materials, 2nd Edition)
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