Assembly of five coordination polymers based on 5,11,17,23-tetra-tert-butyl-25-(carboxymethoxy)-calix[4]arene ligand

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• 作者：Yuanchun He ; Jiao Guo ; Na Xu ; Yang Yu
• 关键词：Calix[4]arene ; Crystal structure ; Auxiliary ligand
• 刊名：Chemical Research in Chinese Universities
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：33
• 期：1
• 页码：44-48
• 全文大小：
• 刊物主题：Chemistry/Food Science, general; Analytical Chemistry; Inorganic Chemistry; Organic Chemistry; Physical Chemistry;
• 出版者：Jilin University and The Editorial Department of Chemical Research in Chinese Universities
• ISSN：2210-3171
• 卷排序：33

文摘

Five coordination polymers, [Co(H₃L)₂(dib)]·1.5H₂O(1), [Cu(H₃L)₂(dib)](2), [Co(H₃L)(mtpy)]·DMF(3), [Ni(H₃L)₂(mtpy)(H₂O)]·3DMF·H₂O(4), and [Cd(H₃L)₂(pybim)]·1.5H₂O(5), have been successfully prepared from 5,11,17,23-tetra-tert-butyl-25-(carboxymethoxy)calix[4]arene, metal salts, and N-donor auxiliary ligands under hydrothermal conditions[dib=1,4-di(1H-imidazol-1-yl)butane, pybim=2-(2'-pyridyl)benzimidazole, and mtpy=4'-(4- methylphenyl)-2,2':6',2''-terpyridine]. Structural analysis suggests that the metal ion first joins two organic carboxy-late ligands to form the independent units, which are further extended by the N-donor auxiliary ligand to give the final structure. Compounds 1 and 2 display 1D infinite chains bridged by a flexible bidentate dib ligand. Compounds 3―5, with multidentate chelate ligands, reveal discrete 0D units. Furthermore, in compounds 3 and 5, 1D supramolecular architectures are exhibited due to π-π interactions.