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Coordination Frameworks based on 3,5‐Bis(imidazole‐1‐yl)pyridine and Aromatic Dicarboxylate Ligands: Synthesis, Crystal Structures, and Photoluminescent Properties
Author(s) -
Xu Jiakun,
Sun Xiaochun,
Yang Lirong,
Yan Xincheng,
Bi Caifeng,
Sun Mi
Publication year - 2014
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201300276
Subject(s) - terephthalic acid , imidazole , pyridine , thermal stability , crystallography , thermogravimetric analysis , luminescence , benzene , metal organic framework , crystal structure , powder diffraction , single crystal , chemistry , infrared spectroscopy , topology (electrical circuits) , materials science , stereochemistry , organic chemistry , polyester , mathematics , optoelectronics , adsorption , combinatorics
Three metal coordination polymers [Zn(bdc)(L)(H 2 O)] n ( 1 ), [Co(pta)(L)(H 2 O) 2 ] n ( 2 ), and [Cd(tda)(L)(H 2 O)] n ( 3 ) [H 2 bdc = 1,2‐benzene dicarboxylate acid, H 2 pta = terephthalic acid, H 2 tda = 2,5‐thiophenedicarboxylic acid, L = 3,5‐bis(imidazole‐1‐yl)pyridine] were synthesized and structurally characterized by IR spectroscopy, elemental analysis, X‐ray powder diffraction, and X‐ray single crystal diffraction. Complex 1 shows a three‐dimensional (3D) structure with cco topology with the symbol 6 5 · 8, whereas complex 2 features a 3D structure with cds topology with the symbol 6 5 · 8. Complex 3 has a 2D network constructed by the cadmium atoms bridged through the ligands tda and L. Their X‐ray powder diffraction patterns were compared with the simulated ones. Moreover, their luminescent properties were investigated in the solid state at room temperature, and the thermogravimetric analyses were carried out to study the thermal stability of the 3D networks.