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Dicarboxylate‐Induced Structural Diversity of Luminescent Zn(II)/Cd(II) Metal–Organic Frameworks Based on the 2,5‐Bis(4‐pyridyl)thiazolo[5,4‐ d ]thiazole Ligand
Author(s) -
Zhai ZhiWei,
Yang ShuangHua,
Luo Peng,
Li LinKe,
Du ChenXia,
Zang ShuangQuan
Publication year - 2019
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201900259
Subject(s) - chemistry , luminescence , thiazole , ligand (biochemistry) , metal organic framework , metal , crystallography , stereochemistry , crystal structure , organic chemistry , receptor , biochemistry , physics , optoelectronics , adsorption
Constructed from rigid 2,5‐bis(4‐pyridyl)thiazolo[5,4‐ d ]thiazole (Py 2 TTz) and various dicarboxylic acids [2‐methyl‐1,4‐benzenedicarboxylic acid (2‐CH 3 ‐H 2 BDC), 5‐methyl‐1,3‐benzenedicarboxylic acid (5‐CH 3 ‐H 2 BDC), 2,5‐dimethyl‐1,4‐benzenedicarboxylic acid (2,5‐di‐CH 3 ‐H 2 BDC), 2,5‐dihydroxyl‐1,4‐benzenedicarboxylic acid (2,5‐di‐OH‐H 2 BDC), 1,4‐naphthalenedicarboxylic acid (1,4‐H 2 NDC), and 2,6‐naphthalenedicarboxylic acid (2,6‐H 2 NDC)], nine novel Zn(II)/Cd(II) MOFs have been synthesized under solvothermal conditions. They possess diverse structures, which mainly result from the different shapes and sizes of the auxiliary dicarboxylate ligands. Linear dicarboxylate ligands (2‐CH 3 ‐BDC, 2,5‐di‐CH 3 ‐BDC, 1,4‐NDC, 2,6‐NDC) generate 3D multi‐fold interpenetrated structures, while the V‐shaped dicarboxylate ligand (5‐CH 3 ‐BDC) affords a 2D layer structure. However, linear 2,5‐di‐OH‐BDC results in a 2D layer structure owing to the influence of the hydroxy group. Luminescence properties of compounds 1 – 9 have been investigated systematically. They display structure‐dependent emission ranging from blue to blue‐white and blue‐green.