crystallography. Complex 8a contains linearly coordinated gold(I) and planar coordinated gold(III) atoms separated by 3.4692(7) Å; one arylphosphine group bridges the metal atoms, the other acts as a bidentate chelate ligand to gold(III). Complexes 6a−8a can be oxidized further by halogens to give either gold(I) complexes of (2-halo-3-methylphenyl)diphenylphosphine, [AuXPh2P(C6H3-2-X-3-Me)] [X = Br (10a), I (11a)]
有机锂试剂(C 6 H 3 -2-PPh 2 -6-Me)Li或(C 6 H 3 -2-PPh 2 -5-Me)Li与[AuBr(PEt 3)]反应生成相应的环
金属化的digold(I)配合物[Au 2(μ- C6 H 3 -2-PPh 2 - n -Me)2 ](n = 6,1a ; n = 5,1b),
金属-
金属距离为1a,2.861 (2)Å,与未取代的化合物[Au 2(μ-2- C6 H4 PPh 2)2 ]。两种络合物都通过氧化添加卤素,从而形成
金属-
金属键合的digold(II)络合物[Au 2 X 2(μ- C6 H 3 -2-PPh 2 - n -Me)2 ] [ n = 6,X = Cl(2a),Br(3a),I(4a);n = 5,X = Cl(2b),Br(3b),I(4b)],并且1b还添加过氧化二苯甲酰,得到bis(benzoato)digold(II)络合物[Au