Synthese, Molekülstruktur und Reaktivität neutraler und kationischer Iridium-Zweikernkomplexe mit verbrückenden Azavinylidenliganden
作者:H. Werner、M. Müller、P. Steinert
DOI:10.1002/zaac.200300068
日期:2003.7
[(η4-C8H12)Irκ1-OC(O)CF3}(κ1-NH=CPh2)] (16) bildet. Synthesis, Molecular Structure and Reactivity of Neutral and Cationic Dinuclear Iridium Complexes with Bridging Azavinylidene Ligands The mononuclear iminoiridium complexes [IrClκ1-NH=C(Ph)R}(η4-C8H12)] (2-4) are obtained from [Ir(μ-Cl)(η4-C8H12)]2 and HN=C(Ph)R (R = Ph, Et, H) by cleavage of the chloro bridges. The reaction of 2 (R = Ph) with NaN(SiMe3)2
单核亚氨基铱配合物 [IrCl κ1-NH = C (Ph) R} (η4-C8H12)] (2-4) 来自 [Ir (μ-Cl) (η4-C8H12)] 2 和 HN = C (Ph) R (R = Ph, Et, H) 通过氯桥的裂解。2 (R = Ph) 与 NaN (SiMe3) 2 反应得到双核络合物 [Ir (μ-N = CPh2) (η4-C8H12)] 2 (5),与卤仿 HCX3 (X = Cl, Br, I) 与 X2 的氧化加成反应形成 IrII-IrII 化合物 [IrX (μ-N = CPh2) (η4-C8H12)] 2 (6-8)。6 (X = Cl) 的晶体结构分析表明分子中存在金属-金属键。5 与 CH3Br 和 CH3I 反应生成中性配合物 [(η4-C8H12) Ir (CH3) (μ-N = CPh2) 2Ir (X) (η4-C8H12)] (9