Gold complexes with selenolate and tellurolate carborane ligands [E2C2B10H10]2− (E = Se, Te) have been synthesized by reaction of a freshly prepared solution of [1,2-(LiE)2C2B10H10] (E = Se, Te) with [AuClL] (L = PPh3, PPh2Me, PPh2py) in a 1 : 2 molar ratio or [Au2Cl2(P∼P)] [P∼P = dppf, 1,1′-bis(diphenylphosphano)ferrocene; dppe, 1,2-bis(diphenylphosphano)ethane; dppc, 1,2-bis(diphenylphosphano)-o-carborane] in a 1 : 1 molar ratio affording complexes [Au2(μ-1,2-E2C2B10H10)L2] or [Au2(μ-1,2-E2C2B10H10)(P∼P)], respectively. The gold(III) species PPN[Au(E2C2B10H10)2] (PPN = bis(triphenylphosphano)iminium) have been afforded by reaction of PPN[AuCl4] with [1,2-(LiE)2C2B10H10]. Complex [Au4(μ-1,2-Se2C2B10H10)2(μ-dppc)2] displays a tetranuclear structure, different from the dinuclear cyclic arrangement proposed for other complexes with diphosphanes of [Au2(μ-1,2-Se2C2B10H10)(P∼P)] stoichiometry.
硒酸盐和
碲酸盐
硼烷配体 [E2C2B10H10]2- (E = Se、Te)的
金配合物是通过将新制备的 [1,2-(LiE)2C2B10H10] (E = Se、Te)溶液与 [AuClL] (L = PPh3、PPh2Me、PPh2py)以 1 : 或 [Au2C
L2(P∼P)] [P∼P = dppf,1,1′-双(
二苯基膦)
二茂铁;dppe,1,2-双(
二苯基膦)
乙烷;dppc,1,2-双(
二苯基膦)-邻
硼烷] 以 1 :1 : 1 的摩尔比,分别生成[Au2(μ-1,2-E2C2B10H10)
L2]或[Au2(μ-1,2-E2C2B10H10)(P∼P)]复合物。P
PN[AuCl4] 与[1,2-(LiE)2CB10H10]反应生成了
金(III)物种 P
PN[Au(E2C2B10H10)2] (P
PN = 双(
三苯基膦)亚
氨基)。[Au4(μ-1,2-SE2C2B10H10)2(μ-dppc)2]复合物显示出一种四核结构,不同于其他具有[Au2(μ-1,2-SE2C2B10H10)(P∼P)]
化学计量的二
磷酸络合物的双核环状排列。