Metallation of the µ-phosphido bridging ligand in the reaction of the anion [M2Cp2(CO)4(µ-PH2 )]- (M = Mo or W; Cp = η5-C5H 5) with organometallic monohalides; synthesis and characterisation of [M2Cp2(CO)4(µ-H){ µ-PH(M′Ln)}] [M′Ln = Mn(CO)5 , FeCp(CO)2, MoCp(CO)3 or WCp(CO)3]

Abstract

The anions [M ₂ Cp ₂ (CO) ₄ (µ-PH ₂ )] ^- (M = Mo or W; Cp = η ⁵ -C ₅ H ₅ ) reacted with the organometallic halides [M′L _n X] [M′L _n = Mo(CO) ₃ Cp, X = Cl; M′L _n = W(CO) ₃ Cp, X = Cl; M′L _n = Fe(CO) ₂ Cp, X = Cl or M′L _n = Mn(CO) ₅ , X = Br] to afford the new complexes [M ₂ Cp ₂ (CO) ₄ (µ-H){ µ-PH(M′L _n )}] together with [L _n M′–M′L _n ], each in low yield. The crystal structure of [W ₂ Cp ₂ (CO) ₄ (µ-H){ µ-PH[MoCp(CO) ₃ ]}] has been determined.