Abstract
Three coordination polymers, namely, {[Zn(L)(BPY)]·DMF·H2O}n (1), {[Zn(L)(TPY)]·0.5H2BDC·H2O}n (2), {[Cd(L)(H2O)2]·DMF}n (3), have been synthesized based on a rigid linear carboxylate ligand (H2L=2′,5′-dimethoxy-[1,1′:4′,1″-terphenyl]-4,4″-dicarboxylic acid) and different lengths of pyridine ligands (TPY=4,3′:5′,4″-terpyridine; BPY=4,4′-bipyridine). These complexes have been characterized by single crystal X-ray diffraction, infrared spectroscopy, thermogravimetry, elemental analysis, and powder X-ray diffraction measurements. Complex 1 is a 6-connected 3-fold interpenetrating pcu net with point symbol {412∙63}, 2 and 3 can be simplified as 4-connected sql nets with point symbol {44∙62}. In addition, their photoluminescent properties are also investigated in detail.
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