二羟乙基二硫代氨基甲酸铋配合物的合成,晶体结构及杀菌活性

Synthesis, Structure and Antibacterial Activity of Dithiocarbamate Complex of Bi(Ⅲ)

铋具有一系列的特殊性质,特别是铋的无毒性与不致癌性使铋具有特殊用途.铋化合物在医学中更是有特别的应用,铋药剂具有收敛,止泄,防腐作用,可吸附毒素,对细菌,病毒乃至锥虫及螺旋体等有极好的抑制与杀灭活性[1,2].在广泛使用的农用杀菌剂中,以二硫代氨基甲酸盐类及其类似物最为有效.鉴于铋在经济上与环境上有农用的可能性[3],而铋配合物的合成研究报道很少[4],我们将二者结合,合成了一种水溶性好,且有因配位后协同效应而增效的杀菌剂(Bi2(deadtc)6配合物A),并希望能制备该杀菌剂以水为溶剂的绿色环保水乳剂型.本文报道该配合物的合成,杀菌活性及晶体结构.

The tris( N,N iminodiethanoldithiocarbamate) bismuth(Ⅲ) complex (Bi 2(deadtc) 6) has been synthesized and its structure has been investigated by single crystal X ray diffractometry. The binuclear complex is centrosymmetric. The resulting coordination polyhedron appears a distorted octahedra with four strong (0 266 7~0 280 9 nm) and two weak (0 306 3~0 310 5 nm) Bi-S bonds. Experiments show that the antibacterial activity of the complex is superior to that of the ligand and that of Mancozeb.