化学
卤化物
光致发光
铅(地质)
无机化学
化学工程
纳米技术
光电子学
地貌学
物理
地质学
工程类
材料科学
作者
Ruichen Wan,Ming Yin,Tsu-Hao Wang,Curtis E. Moore,Yiying Wu
出处
期刊:Inorganic Chemistry
[American Chemical Society]
日期:2025-01-31
卷期号:64 (6): 2868-2877
被引量:1
标识
DOI:10.1021/acs.inorgchem.4c04989
摘要
Chiral organic–inorganic metal halide (OIMH) materials are gaining increasing attention as candidates for asymmetric materials due to their unique photoelectric, chiral optic, and spintronic properties. The introduction of chirality into OIMHs is usually achieved by the use of chiral organic cations, while previous studies often focus on primary ammonium cations derived from commercially available chiral amines, limiting the tunability of the OIMH materials. Herein, we report the use of Zincke reactions to synthesize chiral N-substituted pyridinium salts, namely, (R)/(S)-methylbenzylpyridinium (R/S-MBnP) chloride and the corresponding 1D chiral OIMHs, (R/S-MBnP)PbX3 (X = Cl, Br, and I). The chirality of the pyridinium salts and the corresponding OIMHs is confirmed by circular dichroism (CD) spectroscopy, and the crystal structure is revealed by single-crystal X-ray diffraction (XRD). The photoluminescence (PL) and PL decay lifetimes were measured. The stability against water is monitored by powder XRD. This study demonstrates that Zincke reactions offer high tunability of organic cations for chiral OIMH materials.
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