Reactivity of the [(?5-Cp)V(?2-?6:?2-C10H8)Yb(THF)(?2-?5:?5-Cp)] n complex
摘要:
The interactions of the CpVC10H8Yb(THF)Cp complex with H2O, CO, CO2, Cr(CO)6, CpTl, azobenzene, and other reagents are followed by the breaking of the bond between ytterbium and the naphthalene ligand. The reaction of CpVC10H8Yb(THF)Cp with H2O leads to CpYbOH(THF)2 and CpVC10H8 formation. Ytterbocene, CpVC10H8 and insoluble carboxylates are isolated as a result of the interaction of CpVC10H8Yb(THF)Cp with CO and CO2. The reaction of CpVC10H8Yb(THF)Cp with an equimolar amount of Cr(CO)6 proceeds not only via the breaking of the C10H8-Yb bond, but is followed by the destruction of the CpVC10H8 fragment to form Cp2Yb, Cp2V, CpVC10H8, CpVC10H8VCP, and C10H8. Under mild conditions, the reaction of CpVC10H8Yb(THF)Cp with CpTl occurs leading to the formation Of CP2Yb and CpVC10H8 in high yield. The diphenylhydrazine complex of ytterbium [CpYb(THF)]2[Ph2N2]2 is isolated in the reaction of CpVC10H8Yb(THF)Cp with azobenzene.