P(CH_2CH_2PPh_2)_3 Bridged Group 10 dimetal centres

摘要

The complexes [M(eta~4-PP_3)Cl]Cl (M = NI, Pd or Pt, PP_3 = P(CH_2CH_2PPh_2)_3 were treated with the metal based nucleophiles [Pt(PPh_3)_2(C_2H_4)], [Pt(eta~2-bicyclo(2.2.1)hept-2-ene)_3] or [Pd_2(dba)_3] (dba = dibenzylidenecaetone) to produce PP_3 bridged metal-metal bonded homo-and heterodinuclear complexes in which the central and one terminal phosphorus of the PP_3 ligand are chelated to one metal whilst the other two terminal phosphorus atoms bridge to the second metal centre. The products are characterised by ~31P and ~195Pt NMR spectroscopy; X-ray crystal structures were determined for [Pt_2(PP_3)Cl]Cl and [Pd_2(PP_3)Cl_2].