Confirmation of the classic tris(2,2/-bipyridyl)ruthenium(Ⅱ) and oxalate electrochemiluminescence mechanism using EPR spectroscopy

摘要

A chemically initiated adaptation of the classic [Ru(bipy)i]~(2+)/ oxalate electrochemiluminescence coreactant system has revealed the elusive radical intermediates of the light-producing pathway. Oxalyl (HC_2O_4*) and hydroxyformyl (HCO_2*) radicals have been captured on a quartz surface and characterised using EPR spectroscopy.