Reactivity of bis(cyclopentadienyl)niobium and bis(cyclopentadienyl)tantalum trihydride towards bis(diorganosphosphino)alkanes R2P(CH2)nPR2 (RPh, n = 1, 2 or 3; RMe, n = 1 or 2): synthesis of bimetallic dibridged complexes <Cp2M(μ-H)(μ-diphosphine)M

Article abstract of DOI:10.1016/0022-328X(94)05109-O

The trihydrides (M<*>Nb or Ta) react with diphosphines R2P(CH2)nPR2 (R<*>Me or Ph, n = 1 or 2) affording the monohydrides >.The bimetallic dihydride <2(μ-dppp)> (dppp <*> Ph2P(CH2)3PPh2) is obtained by reaction of dp