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小分子配体诱导合成N,N-二苄基二硫代氨基甲酸镉(II)配合物及晶体结构
Small Ligands-Induced Synthesis of Cadmium Complexes with N,N-Dibenzyl Dithiocarbamate and Their Crystal Structures
【摘要】 4,4’-联吡啶与二苄基二硫代氨基甲酸镉配合物[Cd(DBTC)2]2(1)反应得到加合物[Cd(DBTC)2(4,4’-bipy)](2)(DBTC=N,N-二苄基二硫代氨基甲酸),通过晶体结构分析及红外光谱等研究其结构与性质.结果表明:引入小分子配体会破坏[Cd(DBTC)2]2(1)的二聚结构,加入吡啶则得到单核的吡啶加合物[Cd(DBTC)2py](3),而引入4,4’-联吡啶后其结构变为新型的一维链状结构的配位聚合物2,这种结构在二硫代氨基甲酸金属配合物中少见报道.也比较了不同配体如吡啶及4,4’-联吡啶对Cd(II)及Zn(II)配合物结构的影响.
【Abstract】 A Cd(II) adduct [Cd(DBTC)2(4,4’-bipy)] (2) was synthesized by mixing 4,4’-bipyridyl with the precursor [Cd(DBTC)2]2 (1) (DBTC=N,N-dibenzyl dithiocarbamate anion) and characterized by X-ray crystallography structural analysis and IR spectra respectively. The dimer complex [Cd(DBTC)2]2 (1) has been destroyed to produce new adducts after adding new small ligands. The structure of [Cd(DBTC)2py] (3) obtained by adding pyridine into [Cd(DBTC)2]2 (1) was showed as mononuclear complex and it was inter- esting that [Cd(DBTC)2(4,4’-bipy)] (2) obtained by adding 4,4’-bipy was showed as a 1-D chain coordination polymer, to the best of our knowledge, which has been scarcely reported in dithiocarbamate metal com- plexes. Spacer-induced self-assembly of Cd(II) complexes has been successfully carried out by adding the suitable small molecule ligands. The effect on the structures of Cd(II) and Zn(II) complexes by adding dif- ferent spacers such as pyridine and 4,4’-bipy has been also discussed.
【Key words】 dithiocarbamate; cadmium complex; assembly; crystal structure;
- 【文献出处】 化学学报 ,Acta Chimica Sinica , 编辑部邮箱 ,2007年18期
- 【分类号】O641.4
- 【被引频次】3
- 【下载频次】212