含Cu咪唑桥联异多核配合物的合成、表征及ESR研究  

Synthesis,Characterization and ESR Study of Imidazolate Bridged Heteropolynuclear Complexes Containing Cu^(2+)

作　　者：陈东[1] 唐雯霞[1] 戴安邦[1] 

机构地区：[1]南京大学配位化学研究所

出　　处：《化学学报》1990年第6期547-553,共7页Acta Chimica Sinica

摘　　要：用具有低自旋d^6构型的[(NH_3)_5MIm]^(2+),[(en)_2Co(Im)_2]^+(M=Co,Rh;Im^-为咪唑基)为配体与配位未饱和的含Cu单核配合物作用,定向合成了八种新的咪唑桥联含Cu异双核、异三核和异五核配合物。对它们进行了元素分析、差热失重分析、摩尔电导测定及反射光谱研究,确证了配合物的组成及分子中咪唑桥的存在.通过对各配合物的ESR谱测定,得到了它们的自旋Hamilton参数和键参数,讨论了配合物的成键性质。Eight species of imidazolate-bridged heteronuclear complexes containing Cu^(2+) were prepared. In the synthesis we used the kinetically inert, low spin d^6 complexes, [(NH_3)_5CoIm]^(2+), [(NH_3)_5RhIm]^(2+), and [(en)_2Co(Im)_2]^+ as ligands to react with mononuclear Cu^(2+) complexes. By elemental analysis, molar conductivity, TGA, DSC, and reflectance spectroscopy, all bridged heteronuclear complexes were characterized. We conclude that there exist imidazolate bridges in the heteronuclear complexes. From the ESR spectra of thebridged heteronuclear complexes in solution, the bond parameters of Cu^(2+) were calculated and nature of the bond discussed.

关 键 词：铜配合物 咪唑 桥联 异多核 合成 

分 类 号：O614.121[理学—无机化学]