Terminal and bridged phosphole, arsole, and stibole complexes of molybdenum, tungsten, manganese, rhenium, and iron

Abstract

Tetraphenyl-phosphole, -arsole, and -stibole transition-metal complexes containing phosphorus-, arsenic-, or antimony-to-metal σ bonds are reported for molybdenum, tungsten, manganese, rhenium, and iron. The phosphorus- and arsenic-bridged dimers [{M(CO)₄(EC₄Ph₄)}₂](E = P or As; M = Mn or Re) have been obtained by controlled decomposition of the corresponding monomeric pentacarbonyls.