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
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摘要: Abstract The synthesis and characterization of two Group VI pentacarbonyl complexes (pfepp)M(CO) 5 (M = Cr 1 , Mo 2 ; pfepp = PPh C F ) are reported. Thermolysis M(CO) 6 pfepp in refluxing octane afforded moderate yields. These were completely characterized by multinuclear NMR, IR elemental analysis. X-ray structures for these indicated they isostructural, crystalizing triclinic unit cells with four molecules per asymmetric unit. A comparison the bond lengths to other (L)M(CO) showed a relationship between M–C ax length electronic influence phosphine ligand, establishes ligand as neither electron-rich nor electron-poor. data also indicates is electronically neutral, an that approximates phosphites.
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