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The synthesis and characterisation of some nickel(0) complexes with π-bounded vinylsilicon ligands; the molecular structure of [Ni{P(C6H5)3}2{η2-CH2[dbnd]CHSi(CH3)3}]

Authors
Journal
Journal of Organometallic Chemistry
0022-328X
Publisher
Elsevier
Publication Date
Volume
689
Issue
19
Identifiers
DOI: 10.1016/j.jorganchem.2004.06.057
Keywords
  • Nickel Complexes
  • Vinylsilanes
  • π-Complexes
  • X-Ray Crystal Structure

Abstract

Abstract Reactions of the nickel(0) complexes [Ni(cod) 2] (in the presence of PP or [Ni(PPh 3) 2C 2H 4] with vinyl-siloxanes, -silanes or -silazanes yield, by displacement of alkene ligand, the new nickel π-complexes [Ni(PPh 3) 2(η-CH 2 CHSi(OSiMe 3) 3)] ( 2), [{Ni(PPh 3)} 2{μ-(η-{(CH 2 CH) 2SiMe} 2O})] ( 4), [Ni(PPh 3){η 4-CH 2 CHSi(Me)(μ-O)} 3] ( 5), [{Ni(η-CH 2 CHSiMe 2) 2O}(η-CH 2 CHSiMe 3)] ( 7) and the known complexes [Ni(PPh 3) 2(η-CH 2 CHSiMe 3)] ( 1), [{Ni(PPh 3)} 2{μ-(η-(CH 2 CH) 4Si})] ( 3), [{Ni(PPh 3)(η-CH 2 CHSiMe 2) 2NH}] ( 6) obtained by a simple one pot synthesis, more efficiently than in hitherto published reports. The X-ray crystal structure of ( 1) shows a trigonal planar environment around the nickel atom.

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