Synthesis, characterization, and crystal structures of the osmium triflate complexes Cp∗Os(P–P)(OTf) and [Cp∗Os(P–P)(OH2)][OTf]
摘要:
Treatment of the osmium(II) hydrides (CpOs)-Os-*(P-P)H (Cp-* = pentamethylcyclopentadienyl) with methyl trifluoromethanesulfonate (MeOTf) affords osmium(II) triflate complexes with the general formula (CpOs)-Os-*(P-P)(OTf), where P-P = bis(dimethylphosphino)methane (dmpm), bis(diphenylphosphino)methane (dppm), or 1,2-bis(dimethylphosphino)ethane (dmpe). The aqua complexes [(CpOs)-Os-*(dmpm)-(OH2)][OTf] and [(CpOs)-Os-*(dppm)(OH2)][OTf] are synthesized by the addition of water to the corresponding anhydrous triflates. The complexes (CpOs)-Os-*(dppm)(OTf) and [(CpOs)-Os-*(dmpm)(OH2)][OTf] have been examined crystallographically, and all compounds have been characterized by NMR spectroscopy. (c) 2006 Elsevier B.V. All rights reserved.
Synthesis, characterization, and crystal structures of the osmium triflate complexes Cp∗Os(P–P)(OTf) and [Cp∗Os(P–P)(OH2)][OTf]
摘要:
Treatment of the osmium(II) hydrides (CpOs)-Os-*(P-P)H (Cp-* = pentamethylcyclopentadienyl) with methyl trifluoromethanesulfonate (MeOTf) affords osmium(II) triflate complexes with the general formula (CpOs)-Os-*(P-P)(OTf), where P-P = bis(dimethylphosphino)methane (dmpm), bis(diphenylphosphino)methane (dppm), or 1,2-bis(dimethylphosphino)ethane (dmpe). The aqua complexes [(CpOs)-Os-*(dmpm)-(OH2)][OTf] and [(CpOs)-Os-*(dppm)(OH2)][OTf] are synthesized by the addition of water to the corresponding anhydrous triflates. The complexes (CpOs)-Os-*(dppm)(OTf) and [(CpOs)-Os-*(dmpm)(OH2)][OTf] have been examined crystallographically, and all compounds have been characterized by NMR spectroscopy. (c) 2006 Elsevier B.V. All rights reserved.