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A one‐dimensional manganese(III)–porphyrin coordination polymer: crystal structure and photophysical properties
Author(s) -
Chen Wen-Tong
Publication year - 2020
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229620004350
Subject(s) - porphyrin , ligand (biochemistry) , manganese , chemistry , crystallography , crystal structure , coordination polymer , hydrogen bond , coordination geometry , crystal (programming language) , photochemistry , molecule , biochemistry , receptor , organic chemistry , computer science , programming language
A novel manganese(III)–porphyrin complex, namely, catena ‐poly[[chloridomanganese(III)]‐μ 2 ‐5,10,15,20‐tetrakis(pyridin‐3‐yl)‐21 H ,23 H ‐porphinato(2−)‐κ 5 N 21 , N 22 , N 23 , N 24 : N 5 ], [MnCl(C 40 H 24 N 8 )] n , 1 , was prepared by the hydrothermal reaction of manganese chloride with 5,10,15,20‐tetrakis(pyridin‐3‐yl)‐21 H ,23 H ‐porphine. The crystal structure was determined by single‐crystal X‐ray diffraction. The porphyrin macrocycle exhibits a saddle‐like distortion geometry. The Mn III atom has a six‐coordination geometry. Each porphyrin unit links to two neighbouring units to yield a one‐dimensional coordination polymer. These chains are further interlinked by hydrogen bonds to form a two‐dimensional network. The complex shows red photoluminescence emission bands in ethanol solution, which can be attributed to ligand‐to‐ligand charge transfer (LLCT) accompanied by partial metal‐to‐ligand charge transfer (MLCT), as revealed by TDDFT calculations.