under CO atmosphere. The crystal structure of 2 has been determined by X-ray crystallography. As the analogous dppm complex, 2 adopts a W-frame structure with two bridging ligands 1, two terminal carbonyl ligands and one bridging carbonyl ligand. An electrochemical study reveals that the electron density in the Ni2 core is considerably reduced in 2 compared to the dppm complex.
二聚体[Ni 2(μ-CO)(CO)2(μ- 1)2 ] 2是通过两种不同的方法制备的,这些方法包括使2
-二苯基-膦基-3-甲基
膦配体1与任一Ni(CO气氛下的COD)2或NiBr 2 ·
DME / Zn。的晶体结构2已经通过X射线晶体学确定。作为类似的dppm络合物,2采用具有两个桥接
配体1,两个末端羰基
配体和一个桥接羰基
配体的W框架结构。电
化学研究表明,Ni 2中的电子密度与dppm络合物相比,其核心数减少了2。