Ferrocenyl phosphane nickel carbonyls: Synthesis, solid state structure, and their use as catalysts in the oligomerization of ethylene
摘要:
The synthesis of diverse ferrocenyl phosphane nickel carbonyls of type (FcPPh(2))Ni(CO)(3) (3), (FcPPh(2))(2)Ni(CO)(2) (4), fc(PR2Ni(CO)(3))(2) (R = Ph (6a), R = p-tolyl (6b)), and (fc(PPh2)(2)) Ni(CO)(2) (7) (eta(5)-C5H5)(eta(5)-C5H4)Fe, fc = (eta(5)-C5H4)(2)Fe) starting from FcPPh(2) (1), fc(PR2)(2) (R = Ph (5a); R = p-tolyl (5b)), and Ni(CO)(4) (2) is described. The structures of 3, 4, 6b, and 7 in the solid state are reported, intermolecular interactions by pi-pi-contacts are discussed. The behavior of 3, 4, 6a, 6b, and 7 towards the oligomerization of ethylene is reported. All compounds, except 4, were found to be inactive in homogeneous ethylene oligomerization, while they exhibit moderate activities (up to 660 kg prod/mol Ni h) in heterogeneous ethylene oligomerization experiments. (C) 2010 Elsevier B.V. All rights reserved.
Ferrocenyl phosphane nickel carbonyls: Synthesis, solid state structure, and their use as catalysts in the oligomerization of ethylene
摘要:
The synthesis of diverse ferrocenyl phosphane nickel carbonyls of type (FcPPh(2))Ni(CO)(3) (3), (FcPPh(2))(2)Ni(CO)(2) (4), fc(PR2Ni(CO)(3))(2) (R = Ph (6a), R = p-tolyl (6b)), and (fc(PPh2)(2)) Ni(CO)(2) (7) (eta(5)-C5H5)(eta(5)-C5H4)Fe, fc = (eta(5)-C5H4)(2)Fe) starting from FcPPh(2) (1), fc(PR2)(2) (R = Ph (5a); R = p-tolyl (5b)), and Ni(CO)(4) (2) is described. The structures of 3, 4, 6b, and 7 in the solid state are reported, intermolecular interactions by pi-pi-contacts are discussed. The behavior of 3, 4, 6a, 6b, and 7 towards the oligomerization of ethylene is reported. All compounds, except 4, were found to be inactive in homogeneous ethylene oligomerization, while they exhibit moderate activities (up to 660 kg prod/mol Ni h) in heterogeneous ethylene oligomerization experiments. (C) 2010 Elsevier B.V. All rights reserved.