Jump to main content
Jump to site search

Issue 3, 2002
Previous Article Next Article

The electrooxidation of the tetraphenylborate ion revisited

Author affiliations


The electrochemistry of the tetraphenylborate ion, BPh4, has been studied by cyclic voltammetry and coulometry in water, methanol, ethanol, acetonitrile, acetone, dimethylformamide and dichloromethane under an N2 atmosphere. While a one-electron and somewhat irreversible oxidation (with an E1/2 of 0.87 V vs. SCE at a glassy carbon electrode) is observed in dichloromethane, eqn. (i), the oxidation is somewhat complicated in all other solvents by the occurrence of several consecutive reactions. Epa, the anodic peak potential in cyclic voltammetry, changes from 0.41 V vs. SCE in water to 0.94 V vs. SCE in dimethylformamide at a glassy carbon electrode. The variation in Epa with solvent (S) is explained by invoking reaction (ii). The coulometric results in solvents other than dichloromethane indicate a disproportionation of S–BPh3, eqn. (iii).

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 17 Jul 2001, accepted on 12 Nov 2001 and first published on 28 Feb 2002

Article type: Paper
DOI: 10.1039/B106356C
Citation: New J. Chem., 2002,26, 367-371
  •   Request permissions

    The electrooxidation of the tetraphenylborate ion revisited

    P. K. Pal, S. Chowdhury, M. G. B. Drew and D. Datta, New J. Chem., 2002, 26, 367
    DOI: 10.1039/B106356C

Search articles by author