η-Cyclopentadienyltungsten compounds with vinyl- and allyl-phosphine ligands

Abstract

The properties as ligands of the primary phosphines PH₂(CHCH₂)1 and PH₂(CH₂CHCH₂)2 have been studied. The new compounds [W(η-C₅R₅)Cl₄(PH₂R′)](R₅= H₄Prⁱ, R′= CHCH₂7 or CH₂CHCH₂8; R₅= Me₄Et, R′= CHCH₂9 or CH₂CHCH₂10), [W₂(η-C₅H₄Prⁱ)₂X₄(µ-H)(µ-PHR)](X = Cl, R = CHCH₂12 or CH₂CHCH₂13; X = Br, R = CHCH₂15), [W₂(η-C₅Me₅)₂Cl₄(µ-H)(µ-PHC₂H₃)]17 and [W₂(η-C₅Me₅)₂Cl₂(µ-Cl)(µ-PHC₂H₃)]18 have been prepared. The crystal structures of compounds 10 and 17 have been determined.