| 2-氨甲基-1H-苯并咪唑钴（Ⅱ）和镍（Ⅱ）配合物的合成、晶体结构和抑菌活性 |
| Cobalt(Ⅱ) and Nickel(Ⅱ) Complexes Based on 2-Aminomethyl-1H-benzimidazole：Synthesis, Crystal structure and Antibacterial Activity |
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| 摘要: 利用双齿配体2-氨甲基-1H-苯并咪唑（AMBI）和硫氰酸钾以及硝酸钴或硝酸镍在甲醇-水中反应制备了2个新的异质同晶配合物trans-[M（AMBI）2（NCS）2]（1：M=Co2+，2：M=Ni2+）。X-射线衍射单晶结构表明：2个配合物属于单斜晶系，C2/c空间群，M（Ⅱ）与来自AMBI的4个氮原子和异硫氰酸根的2个氮原子配位，形成八面体结构。配合物中的N-H…S氢键和π-π相互作用将配合物连接成三维网络结构。用红外光谱、紫外-可见光谱对配合物1和配合物2进行了表征，并对配合物的热稳定性做了研究。选取金黄色葡萄球菌和大肠杆菌作为抑菌菌种，研究了配体AMBI和2个配合物的抑菌能力。 |
| 关键词: 钴（Ⅱ）配合物 镍（Ⅱ）配合物 2-氨甲基-1H-苯并咪唑 晶体结构 抑菌活性 |
| 基金项目: 河北科技大学校立基金（No.sw19）资助项目。 |
| Abstract: The reaction of M(NO3)2·6H2O with KSCN in presence of the bidentate ligand 2-aminomethyl-1H-benzimidazole (AMBI) afforded the six-coordinate mononuclear dithiocyanato-M(Ⅱ) complexes trans-[M(AMBI)2(NCS)2](1: M=Co2+, 2: M=Ni2+). The compounds were characterized by elemental analysis, IR and UV-Vis spectroscopy and their molecular structures were determined by single-crystal X-ray crystallography. In the two complexes, six-coordinate geometry was achieved by the six N-donors of two AMBI and two thiocyanato ligands. Crystal packing of each complex revealed that 3D framework is formed by two hydrogen bonds of type N-H…S and both benzimizazole ring head to tail π-π stacking interactions and face to face π-π stacking interactions. The thermal stability of the complexes was investigated in the solid state. The preliminary antibacterial activities of AMBI and its complexes were investigated as well. CCDC: 936030, 1; 936031, 2. |
| Keywords: cobalt(Ⅱ) complex nickel(Ⅱ) complex 2-aminomethyl-1H-benzimidazole crystal structure antibacterial activity |
| 投稿时间：2013-11-13 修订日期：2014-03-12 |
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| 赵海燕,马晶军,杨晓东,杨敏丽.2-氨甲基-1H-苯并咪唑钴（Ⅱ）和镍（Ⅱ）配合物的合成、晶体结构和抑菌活性[J].无机化学学报,2014,30(8):1925-1930. |
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