Structure et proprietes chimiques du complexe Cp(DPPE)FeCOPh. Preparation de complexes carbeniques

Abstract

Cp(DPPE)Fe(COPh) (A) can be prepared either by reaction of benzoyl chloride with the inorganic Grignard reagent Cp(DPPE)FeMgBr or by irradiation of Cp(CO)2Fe(COPh) in the presence of DPPE. Complex A Shows a particularly low carbonyl absorption in the infrared spectrum: 1510 cm-1. The crystal structure determination shows a distorted geometry for the benzoyl group. A is a precursor for carbene complexes which do not contain carbonyl ligands. © 1977.