Electrochemical oxidation-reduction of carbonyl(η-cyclopentadienyl) dichalcogenocarbamatomolybdenum(II), (η-C5H5)Mo(CO)n (XYCNMe2) (n = 2, XY SeSe, SeS, SS, SeO, SO; n = 3, XY SeO, SO)
作者:Koji Tanaka、Kiyoji U-Eda、Toshio Tanaka
DOI:10.1016/0022-1902(81)80542-8
日期:1981.1
A series of Mo(II) complexes of the (η-C5H5) Mo(CO)n(XYCNMe2 type (n = 2, XYSeSe(1), SeS(2), SS(3), SeO(4), SO(5); n = 3, XY SeO(6), SO(7)) were prepared. Electrochemical behavior of these complexes was studied in acetonitrile and in dichloromethane with d.c. cyclic voltammetry and coulometry. Complexes 1–3 undergo one-electron reversible or quasi-reversible oxidation-reduction in both solvents
一系列的Mo(II)的(η-C的复合物5 ħ 5)的Mo(CO)Ñ(XYCNMe 2型(Ñ = 2,XYSeSe(1),SES(2),SS(3),SEO (4),SO(5); n = 3,XYSeO(6),SO(7))。用直流循环伏安法和库仑法研究了这些配合物在乙腈和二氯甲烷中的电化学行为。配合物1– 3在两种溶剂中均进行单电子可逆或准可逆氧化还原。4和5的氧化种在乙腈可以通过溶剂的乙腈与Mo(III),得到[(η-C的协调可以稳定5 ħ 5)的Mo(CO)2(XC(O)NME 2)(MeCN中)] +(XSe,S ),在一个电子还原后释放出乙腈以再生4和5。阳离子乙腈加合物也可以通过在乙腈中氧化6或7来生产,其伴随的是从电子缺陷的Mo(III)离子中消除一分子一氧化碳,然后与溶剂乙腈进行配位。