in the solid state and in solution. The X-ray study shows that the cation [(η3-C3H5)Ni(PCy3)(NH3)]+ (1+) is chiral as a result of the two possible orientations of the allyl group and the different ancillary ligands bound to the (η3-C3H5)Ni+ moiety. In the solid state, cation 1+ exists as a racemic mixture of the two enantiomers 1a+ and 1b+. In solution, complex 1+ is involved in a slow fluxional process
合成,晶体结构,fluxional行为,和反应性[(η 3 -C 3 H ^ 5)的Ni(PCY 3)(NH 3)] BPH 4(1)中描述。复杂的1通过氧化加成allylammonium四苯基
硼酸的,(CH得到2 CHCH 2 NH 3)BPH 4,与Ni(0)[(CY 3 P)2的Ni(η 2 -CO 2)或(CY 3 P)2 NiNNNi (PCy 3)2],在温和条件下,通过选择性活化N-C-烯丙基键。配合物1是具有三个不同
配体和给体原子的烯丙基
镍阳离子配合物的独特实例。它已在固态和溶液中得到充分表征。X射线研究表明,阳离子[(η 3 -C 3 H ^ 5)的Ni(PCY 3)(NH 3)] +(1 +)是手性的作为结合于(烯丙基的两个可能的方向和不同的辅助
配体的结果η 3 -C 3 H ^ 5)的Ni +部分。在固态下,阳离子1 +以两种对映体1a +的外消旋混合物形式存在和1b