Abstract
Depending on steric effects of phosphine and o-semiquinone (SQ) ligands bonded to the copper atom, (R3P)2CuSQ complexes have either pseudotetrahedral geometry with equivalent phosphine ligands or trigonal-pyramidal with one equatorial and one axial phosphine ligand. In an ESR study of the exchange dynamics of the phosphine ligands in trigonal-pyramidal complexes, the kinetic parameters of the exchange were determined. A model was proposed which explains distortions in the geometry of the complexes by nonvalence interatomic interactions on the “periphery” of the phosphine and SQ ligands.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 1986–1991, September, 1991.
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Abakumov, G.A., Cherkasov, V.K., Nevodchikov, V.I. et al. Coordination-sphere dynamics of bisphosphine o-semiquinone complexes of copper(I). Russ Chem Bull 40, 1754–1759 (1991). https://doi.org/10.1007/BF00960398
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DOI: https://doi.org/10.1007/BF00960398