Fine tuning of the catalytic effect of a metal-free porphyrin on the homogeneous oxygen reduction

• Published in: Chemical Communications- Royal Society of Chemistry (ISSN: 1359-7345), vol. 47, p. 5446-5448
• Royal Society of Chemistry, 2011

The catalytic effect of tetraphenylporphyrin on the oxygen reduction with ferrocene in 1,2-dichloroethane can be finely tuned by varying the molar ratio of the acid to the catalyst present in the solution. The mechanism involves binding of molecular oxygen to the protonated free porphyrin base, in competition with ion pairing between the protonated base and the acid anion present.

Keywords: Tetraphenylporphyrin Monoacids ; Liquid/Liquid Interfaces ; Ferrocene Derivatives ; Cobalt Porphyrins ; Electron-Transfer ; Perchloric-Acid ; O-2 ; Dioxygen ; Activation ; Behavior

Reference

• EPFL-ARTICLE-165744
• doi:10.1039/c1cc11075f
• View record in Web of Science

Record created on 2011-05-11, modified on 2012-03-21