Synthesis, Crystal Structures and Properties of Two Metal–Organic Frameworks Constructed from Pyridine Dicarboxylate and Flexible Bis(imidazole) Ligand

被引:0
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作者
Yong-Hong Zhou
机构
[1] Huaibei Normal University,School of Chemistry and Material Science
关键词
Zinc(II); Cadmium(II); Metal–organic frameworks; 1,1′-(1,4-Butanediyl)bis(imidazole); Crystal structure; Fluorescent property;
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摘要
Two novel interesting metal–organic frameworks, [Zn(PDA)(bbi)]n (1) and [Cd2(PDA)2(bbi)2(H2O)2·10H2O]n (2) [H2PDA = pyridine-2,6-dicarboxylic acid, bbi = 1,1′-(1,4-butanediyl)bis(imidazole)] have been isolated under hydrothermal conditions and structurally characterized. X-ray single crystal structure analysis reveals that complex 1 crystallize in monoclinic P21/c space group, while complex 2 crystallize in triclinic P-1 space group. The PDA2− anions act in two different coordination modes: terminal chelating for 1 and chelating and bis-monoatomic bridging for 2. Polymeric chains of 1 and 2 are composed of Zn(II) and Cd(II) ions bridged by bbi ligands. The fluorescent properties of 1 and 2 were also investigated.
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页码:1189 / 1194
页数:5
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