ELECTROCHEMICAL OXIDATION OF RHENIUM ALKYL COMPLEXES OF THE FORMULA (ETA-5-C5H5)RE(NO)(PPH3)(R) - EVIDENCE FOR ONE-ELECTRON CHARGE-TRANSFER Academic Article uri icon

abstract

  • The redox properties of rhenium alkyl complexes R-(Re) ((Re) = (r5-C5H5)Re(NO)(PPh3)) with R = PhCH2(1), (CH3)2CHCH2(2), and Ph(CH3)CH (3) are studied electrochemically. Cyclic voltammetric, peak current, heterogeneous charge transfer, and chronoamperometric studies in a variety of solvents indicate that 13 undergo initial one-electron oxidation to cation radicals R-(Re)*+. These decompose by an EC mechanism at rates that correlate with solvent donor ability. Intermediates, possibly R-(Re/solvent) R+, are detected by cyclic voltammetry. Coulometric experiments further suggest that R-(Re),+can catalytically oxidize solvent via R-(Re/solvent)'+. These data contrast with an earlier report describing evidence for a two-electron oxidation of 3. 1987, American Chemical Society. All rights reserved.

published proceedings

  • ORGANOMETALLICS

author list (cited authors)

  • BODNER, G. S., GLADYSZ, J. A., NIELSEN, M. F., & PARKER, V. D.

citation count

  • 5

complete list of authors

  • BODNER, GS||GLADYSZ, JA||NIELSEN, MF||PARKER, VD

publication date

  • August 1987