基于双咪唑基柔性配体的一维链状铜(Ⅰ)、钴(Ⅱ)配合物的合成、结构和性质(英文) |
Syntheses, Structures and Properties of Two 1D Chain Coordination Polymers Based on Bis(imidazole) Ligand |
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摘要: 柔性配体1,4-二亚甲基咪唑-2,3,5,6-四甲基苯(p-bitmb)与不同金属盐发生水热反应,得到两个新的配位聚合物{[Cu(Ⅰ)2Cl(p-bitmb)2][Cu(Ⅰ)Cl2]·H2O}n(1)和[CoCl2(p-bitmb)]n(2)。用单晶X-射线,元素分析,FTIR,热重分析对两个化合物进行了表征。配合物1和2都具有一维链状结构,但1中的一维链进一步通过π-π堆积和氢键作用拓展成二维超分子结构。值得注意的是配合物1合成过程中的Cu(Ⅱ)被还原为Cu(Ⅰ),推测是由于在高的合成温度下被具有还原性的咪唑环还原引起的。 |
关键词: 柔性二齿配体 一维配位聚合物 Cu(Ⅱ)→Cu(Ⅰ)的还原 水热反应 |
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Abstract: In this paper two new coordination polymers {[Cu(Ⅰ)2Cl(p-bitmb)2][Cu(Ⅰ)Cl2]·H2O}n(1), [CoCl2(p-bitmb)]n(2) have been solvothermally synthesized by using a new flexible ligand 1,4-bis(imidazo-l-ylmethyl)-2,3,5,6-tetramethylbenzene (p-bitmb) and MCl2 salt (M=Cu or Co). Compounds 1 and 2 have been characterized by single crystal X-ray diffraction analyses, elemental analyses, IR spectra and thermogravimetric analyses. Both 1 and 2 consist of 1D infinite coordinative chains, but a 2D supramolecular structure of 1 is constructed through hydrogen-bond and aromatic π-π interactions. It is interesting that Cu(Ⅱ) was reduced to Cu(Ⅰ) in the synthesis of 1, which is probably promoted by the high synthetic temperature and the reductive property of the imidazole ligand. CCDC: 808064, 1; 853579, 2. |
Keywords: flexible dipodal ligand 1D coordination polymer reduction of Cu(Ⅱ) to Cu(Ⅰ) solvothermal synthesis |
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孙海霞,刘冬菊,张 琰,吴 勇,方 敏,刘红科.基于双咪唑基柔性配体的一维链状铜(Ⅰ)、钴(Ⅱ)配合物的合成、结构和性质(英文)[J].无机化学学报,2012,28(10):2205-2210. |
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