X-Ray Structures and Dynamic Solution Behaviours of Five-Coordinate Nickel(II) Complexes Containing Di- and Tritertiary Arsine Ligands
作者:David A. McMorran、Michael G. Fitzpatrick、Robert G. Cunninghame、Alison J. Downard、Ward T. Robinson、Lyall R. Hanton
DOI:10.1071/ch15693
日期:——
distorted square-pyramidal structure consisting of pseudo-chains of cations with potentially bridging Br donors held at ~3.8 Å from the Ni of an adjacent cation by steric interaction with Me groups. The X-ray structure of [Ni(3)2Br2] (8), which crystallises in the monoclinic space group P21/n, is also reported. The complex has a tetragonally distorted octahedral structure, with long Ni–Br bonds, and
含潜在的三齿配体双(2-(二甲基ar基)苯基)甲基ar(1)和双(2-(二甲基ar基)苯基)phenyl的两种均相五配位Ni II配合物的固态结构和动态溶液行为的比较研究(2)和双齿配体1,2-双(二甲基ar)苯(3)被报道。[Ni(1)2 ](ClO 4)2(4)在单斜空间群P 2 1 / n中结晶,并采用伪正方形-金字塔形结构。配体之一是带有–AsMe 2的双齿小组从Ni中心以3.748(5)Å悬挂。在溶液中的悬空-AsMe 2被发现与协调-AsMe迅速交换2组反在较低温度下将其与所有协作-AsMe 2组在较高温度下的基团。在单斜空间群P 2 1 / c中,[Ni(2)2 ](PF 6)2(5)结晶为5 ·C 4 H 10 O,并采用伪三角双锥体几何。配体之一是双齿和–AsMe 2该组从中心Ni处以4.137(8)Å倾斜,将三角平面的As–Ni–As角平分。化合物5的通量行为与4相似,