SYNTHESIS AND STRUCTURE OF 1,2-BIS(DIPHENYLPHOSPHINO)ETHANE COMPLEXES OF COPPER(I) ACETATE. CATALYSTS FOR THE DECARBOXYLATION OF CARBOXYLIC ACIDS uri icon

abstract

  • Several dimeric complexes of copper(I) acetate with bidentate phosphine ligands have been synthesized. The solid-state structure of one of these derivatives, dppe(CuO2CCH3)2, where dppe = l, 2-bis(diphenylphosphino)ethane, has been determined. The complex is shown to exist in the solid-state as a polymeric chain of dimeric copper(I) units containing a dppe and two acetate ligands, with the dimers being linked together via weaker Cu-O interactions. The Cu-Cu bond length in the dimeric units is considerably longer, at 2.712(2) A, than that observed in copper(I) acetate of 2.556(2) A. The use of these derivatives as catalyst precursors for the catalytic decarboxylation of cyanoacetic acid to acetonitrile and carbon dioxide is discussed. Crystal data for dppe(CuO2CCH3)2: space group P21/n, a = 14.976(6) A, b = 11.676(3) A, c = 16.999(6) A, p = 107.59(3), Z = 4, R = 7.33%. 1994, Taylor & Francis Group, LLC. All rights reserved.

published proceedings

  • Journal of Coordination Chemistry

author list (cited authors)

  • Darensbourg, D. J., Longridge, E. M., Khandelwal, B., & Reibenspies, J. H.

citation count

  • 14

complete list of authors

  • Darensbourg, Donald J||Longridge, Elisabeth M||Khandelwal, Bandana||Reibenspies, Joseph H

publication date

  • June 1994