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Synthesis and reactivity of copper(I) phosphine-alkene complexes: X-ray crystal structure of CuCl(Ph2PCPh=CH2)(2)

Goles, S. J., Faulds, P., Hursthouse, M. B., Kelly, D. G. and Toner, A. J. (2000) Synthesis and reactivity of copper(I) phosphine-alkene complexes: X-ray crystal structure of CuCl(Ph2PCPh=CH2)(2) Polyhedron, 19, (10), pp. 1271-1278. (doi:10.1016/S0277-5387(00)00386-7).

Record type: Article


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.

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Published date: 30 May 2000
Keywords: 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


Local EPrints ID: 18879
ISSN: 0277-5387
PURE UUID: a130078a-c39e-4826-aca8-3aa7af85b91c

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Date deposited: 16 Dec 2005
Last modified: 17 Jul 2017 16:34

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Author: S. J. Goles
Author: P. Faulds
Author: M. B. Hursthouse
Author: D. G. Kelly
Author: A. J. Toner

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