Synthesis and characterization of chromium and molybdenum(0) complexes bearing the (pentafluoroethyl)diphenylphosphine (pfepp) ligand
作者:Jason D. Palcic、Russell G. Baughman、Misha V. Golynskiy、Sara B. Frawley、R. Gregory Peters
DOI:10.1016/j.jorganchem.2004.09.034
日期:2005.1
The synthesis and characterization of two Group VI pentacarbonyl complexes (pfepp)M(CO)5 (M = Cr 1, Mo 2; pfepp = PPh2C2F5) are reported. Thermolysis of M(CO)6 and pfepp in refluxing octane afforded 1 and 2 in moderate yields. These complexes were completely characterized by multinuclear NMR, IR and elemental analysis. X-ray structures for these complexes indicated they were isostructural, crystalizing
报道了两种VI族五羰基配合物(pfepp)M(CO)5(M = Cr 1,Mo 2 ; pfepp = PPh 2 C 2 F 5)的合成和表征。M(CO)6和pfepp在回流辛烷中的热解以适中的收率提供了1和2。这些配合物通过多核NMR,IR和元素分析得到完全表征。这些复合物的X射线结构表明它们是同构结构,在三斜晶系晶胞中结晶,每个不对称单元具有四个分子。1和2中的键长与其他(L)M(CO)5的比较配合物表现出的M-C之间的关系的斧键长和膦配位体的电子影响,并建立pfepp配体富电子也不缺电子两者都不是。IR数据与其他(L)M(CO)5配合物的比较也表明pfepp配体是电子中性的,具有近似亚磷酸酯的电子影响。