Formic acid acting as an efficient oxygen scavenger in four-electron reduction of oxygen catalyzed by a heterodinuclear iridium-ruthenium complex in water

Abstract

A heterodinuclear iridium-ruthenium complex [IrIII(Cp*) (H2O)(bpm)RuII(bpy)2](SO4) 2 (Cp* = φ5-pentamethyl-cyclopentadienyl, bpm = 2,2′-bipyrimidine, bpy = 2,2′-bipyridine) acts as an effective catalyst for removal of dissolved O2 by the four-electron reduction of O2 with formic acid in water at an ambient temperature. © 2010 American Chemical Society.