Synthesis and structure of ferrocenylmethylphosphines, their borane adducts, and some related derivatives

Formation of borane adducts of the ferrocenylmethylphosphines FcCH2PH2, (FcCH2)2PH, and (FcCH2)3P resulted in shorter P-C bonds and larger angles at P, consistent with rehybridization at P on quaternization.