配合物[Ni(IDB)_2]_2·(SO_4)_2·3CH_3CH_2OH·CH_3OH·5H_2O的合成、晶体结构及其荧光光谱的研究  

Synthesis and Crystal Structure of Complex [Ni(IDB)_2]_2·(SO_4)_2·3CH_3CH_2OH·CH_3OH·5H_2O and Its Fluorescence Spectrum

作　　者：陈彦国[1] 何治柯[2] 张斓[3] 陈琼[3] 陆江林[3] 邓真丽[3] 陈灵[3] 王卫东[3] 

机构地区：[1]湖北师范学院生化分析技术湖北省重点实验室 [2]武汉大学化学与分子科学学院,武汉430072 [3]湖北师范学院化学与环境工程学院,黄石435002

出　　处：《化学学报》2008年第14期1651-1657,共7页Acta Chimica Sinica

基　　金：国家自然科学基金(No.20575046);湖北省教育厅重点科研基金(No.D200722004)资助项目

摘　　要：标题配合物是由三齿配体N,N-二(2-苯并咪唑甲基)亚胺(IDB)与NiSO4?6H2O在甲醇-乙醇溶液中反应得到的紫色晶体.X射线衍射测定了其单晶结构.结构分析表明,镍(II)分别与两个IDB配体中的苯并咪唑的四个氮和胺基的两个氮配位形成畸变的八面体构型.研究了纳米金和小牛胸腺DNA对配合物荧光的影响,探讨了配合物的荧光猝灭与恢复的可能机理.The title complex was synthesized by the reaction of the ligand, IDB [IDB =N,N-di（2-benzimidazolylmethyl） imine], with NiSO4,6H20 in ethanol and methanol, and its crystal structure has been determined by single crystal X-ray diffraction. The nickel（Ⅱ） atom, owning a distorted octahedral coordination geometry, is six-coordinated by four nitrogen atoms of benzimidazole groups and two amine nitrogen atoms from IDB. The effect of gold nanoparticles and ctDNA on fluorescence of the title complex was studied. The related mechanism about fluorescence recovery and fluorescence-quenching was discussed.

关 键 词：镍配合物 晶体结构 荧光光谱 纳米金 DNA 

分 类 号：O641.4[理学—物理化学]