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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。
The flexible ligand, 1,4-dimethyleneimidazolium-2,3,5,6-tetramethylbenzene (p-bitmb) was hydrothermally reacted with different metal salts to give two novel coordination polymers { Cu (I) 2Cl (p-bitmb) 2] [Cu (I) Cl2] · H2O} n (1) and [CoCl2 (p-bitmb)] n (2). Two compounds were characterized by single crystal X-ray, elemental analysis, FTIR and TGA. Both complexes 1 and 2 have a one-dimensional chain structure, but the one-dimensional chain further expands to a two-dimensional supramolecular structure through π-π stacking and hydrogen bonding. It is noteworthy that Cu (II) is reduced to Cu (I) during the synthesis of complex 1, presumably due to reduction by a reducing imidazole ring at high synthesis temperatures.