两个含2-（2-吡啶基）苯并咪唑的镍（Π）配合物的合成、晶体结构及表征

摘要

The complex [Ni(PBIm)2Cl2 H2O]・ (C2 H5OH)(H2O) 1 is self‐assembled with NiCl2 ・ 6H2O and the ligands as the starting materials under acidic conditions by natural evaporation method ,and the complex [Ni(PBIm)Cl2 (CH3CH2OH)]2 2 (PBIm=2‐(2‐pyridyl)‐benzimidazole) is self‐assembled with the same raw materials by a hydrothermal method .The structures of the two complexes are characterized by X‐ray crystal diffraction . The results show that the complex 1 crystallizes in triclinic ,space group Pī,and the complex 2 crystallizes in monoclinic ,space group P21/c .Two complexes assemble into a 1D structure by the intermolecular hydrogen bonding interactions .The fluorescent property and thermal stability are also characterized ,the results show that complex 2 with higher thermal stability and the fluorescence intensity than complex 1 .%以氯化镍、2‐（2‐吡啶基）苯并咪唑为原料在酸性条件下通过自然挥发法自组装成新型的配合物[N i （PBIm）2Cl2H2O]・（C2H5OH）（H2O）1；相同的原料通过水热法自组装成新型的配合物[Ni（PBIm） Cl2（CH3CH2OH）]22（PBIm＝2‐（2‐吡啶基）苯并咪唑）。用X射线单晶衍射确定其配合物的结构，结构分析结果表明，配合物1属于三斜晶系，Pī空间群，配合物2属于单斜晶系，P21／c空间群，两个配合物都能通过氢键的作用形成一维链状结构。并对其荧光及热稳定进行了表征，结果表明，配合物2比配合物1的热稳定性好且荧光强度高。