Goles, S. J., Faulds, P., Hursthouse, M. B., Kelly, D. G. and Toner, A. J.
Synthesis and reactivity of copper(I) phosphine-alkene complexes: X-ray crystal structure of CuCl(Ph2PCPh=CH2)(2)
Polyhedron, 19, (10), . (doi:10.1016/S0277-5387(00)00386-7).
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Copper(I) chloride complexes containing bifunctional phosphine/alkene ligands of the form CuCl(Ph2PCH=CH2)(n) (n = 1, 3) and CuCl( Ph2PCPh=CH2)(2) have been synthesized, with the latter being characterized by single crystal X-ray diffraction. Complexes decompose rapidly on reaction with hydroborating agents NaBH4 and Na[B(OMe)(3)H], although the thermally unstable Cu(BH4) (Ph2PCPh=CH2)(2) may be observed by NMR spectroscopy. The complexes show considerable resistance to thermally initiated alkene polymerization, the only significant reactivity for diphenylvinylphosphine complexes being trace ligand dissociation and subsequent aerobic oxidation to Ph2P(O)CH=CH2. Similar dissociation/oxidation is not observed for CuCl(Ph2PCPh=CH2)(2). Lewis acid initiated polymerization, using Et2O . BF3, results in the facile formation of copper(I) coordinated polymeric phosphine ligands for diphenylvinylphosphine complexes, but again no reactivity is induced in the more sterically hindered alpha-styrenyl analogue.
|Digital Object Identifier (DOI):
||phosphine, alkene, polymerization, hydroboration, copper(i) complexes
group-11 metal(i) compounds, lewis-base adducts, solid-state, p-31 nmr, chloride, ligands, triphenylphosphine, mononuclear, halides
|30 May 2000||Published|
||16 Dec 2005
||16 Apr 2017 23:08
|Further Information:||Google Scholar|
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