1996). Interestingly, exposure of the coordinated unsaturated complex 2 under CO(g) atmosphere resulted in complex cis-[(CO)4Mn(-S,-Se-C6H3-4-Me)]− (3) being formed. After purging the solution of complex 3 with N2, it was reconverted completely back to complex 2; this observation was characterized by FTIR. The cyclic voltammetry scan of complex 2 shows a quasi-reversible redox couple with E 1/2 = −1.94 V
Br 2 [Mn(CO)5 ] -的氧化添加导致[(CO)4 MnBr]的形成,然后将
溴化物
配体交换为[S,
SE-C 6 H 3 -4-Me] 2 2-以形成络合物(CO)3的Mn(μ - ŋ 4 -SC 6 ħ 3 -4-(CH 3)
硒-
SEC 6 ħ 3 -4-(CH 3)S)的Mn(CO)3(1) 。新的五坐标复合物[(CO)3 Mn(-S,-
SE-C 6 H 3 -4-CH 3)] -(2)可以通过两种不同的途径合成:(a)将二
硒化物[HS,
SE-C 6 H 3 -4-Me] 2氧化加入[Mn(CO)5 ] -中,然后进行去质子化和
配体解离生成配合物2 ; (b)通过[BH 4 ] -将络合物1的二
硒键还原以产生2。在0°C滴加HBF 4 ·OEt 2会导致形成络合物1。X射线分析显示复杂2与已发表的顺式-[(CO)4 Mn(EPh)2 ] -(E = S和
SE; Liaw等人在《
化学物理学报》(J