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Fluorescent Crystalline Halides: Design, Synthesis and Applications

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

Deadline for manuscript submissions: 31 August 2024 | Viewed by 1007

Special Issue Editors


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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: inorganic-organic hybrid material; metal chalcogenide; ionic liquid; metal halide; luminescence; single-crystal structure; ion exchange

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Guest Editor
College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, China
Interests: hybrid metal halides; fluorescence; optical applications; halide storage; crystalline material

Special Issue Information

Dear Colleagues,

This Special Issue is concentrated on the design, synthesis, and applications of fluorescent crystalline metal halides. Crystalline metal halides generally refer to a compound with the chemical formula of AmBXn (A = cation, B = metal ion, X = halide anion). They can be synthesized by different methods, such as solvothermal, solvent evaporation, and solid-state reactions, and their structures can be determined via single-crystal X-ray diffraction. Two main classes of crystalline halides can be distinguished: inorganic crystalline metal halides and organic–inorganic hybrid crystalline metal halides. The latter are characterized by great structural diversity and the existence of abundant supramolecular interactions. Moreover, the fluorescent properties of the titular crystals can be tuned as desired through cation modification, anion modulation, and composition engineering, leading to a variety of applications such as light emitting, X-ray detection, and information coding. Their study opens up new prospects in material science and structural chemistry.

Prof. Dr. Xiaoying Huang
Prof. Dr. Kezhao Du
Guest Editors

Manuscript Submission Information

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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 halides
  • fluorescence
  • single crystal
  • supramolecular interactions
  • optical applications
  • structure–property relationship

Published Papers (1 paper)

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Research

13 pages, 2551 KiB  
Article
Polymorphism and Red Photoluminescence Emission from 5s2 Electron Pairs of Sb(III) in a New One-Dimensional Organic–Inorganic Hybrid Based on Methylhydrazine: MHy2SbI5
by Magdalena Rowińska, Dagmara Stefańska, Tamara J. Bednarchuk, Jan K. Zaręba, Ryszard Jakubas and Anna Gągor
Molecules 2024, 29(2), 455; https://doi.org/10.3390/molecules29020455 - 17 Jan 2024
Viewed by 692
Abstract
We explore the crystal structure and luminescent properties of a new 1D organic–inorganic hybrid, MHy2SbI5, based on methylhydrazine. The compound reveals the red photoluminescence (PL) originating from the 5s2 electron pairs of Sb(III) as well as complex structural [...] Read more.
We explore the crystal structure and luminescent properties of a new 1D organic–inorganic hybrid, MHy2SbI5, based on methylhydrazine. The compound reveals the red photoluminescence (PL) originating from the 5s2 electron pairs of Sb(III) as well as complex structural behavior. MHy2SbI5 crystalizes in two polymorphic forms (I and II) with distinct thermal properties and structural characteristics. Polymorph I adopts the acentric P212121 chiral space group confirmed by SHG, and, despite a thermally activated disorder of MHy, does not show any phase transitions, while polymorph II undergoes reversible low-temperature phase transition and high-temperature reconstructive transformation to polymorph I. The crystal structures of both forms consist of 1D perovskite zig-zag chains of corner-sharing SbI6 octahedra. The intriguing phase transition behavior of II is associated with the unstable arrangement of the [SbI5]2− chains in the structure. The energy band gap (Eg) values, estimated based on the UV-Vis absorption spectra, indicate that both polymorphs have band gaps, with Eg values of 2.01 eV for polymorph I and 2.12 eV for polymorph II. Full article
(This article belongs to the Special Issue Fluorescent Crystalline Halides: Design, Synthesis and Applications)
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