Electocatalytic Water Oxidation by Cobalt(lll) Hangman β-Octafluoro Corroles

摘要

Cobalt hangman corrole, bearing β-octa-fluoro and meso-pentafluorophenyl substituents, is an active water splitting catalyst. When immobilized in Nafion films, the turnover frequencies for the 4e~-/4H~+ process at the single cobalt center of the hangman platform approach 1 s~(-1). The pH dependence of the water splitting reaction suggests a proton-coupled electron transfer (PCET) catalytic mechanism.