Carbanion Ruthenium Complexes for Water Oxidation

A novel carbanion complex, [RuIII(dpa)(4,4’-bypridine)2], (dpa = ((5-methyl-1,3-phenylene)bis(pyridine-6,2-diyl))bis(hydroxy(l1-oxidaneyl)phosphine oxide),), has been prepared, characterised and incorporated as a coordination oligomer to form II@MWCNT@GC. Once incorporated in a coordination oligomer, this otherwise inert and stable diphosphonate complex has the ability to engage in electrocatalysis, with Faradaic efficiency (FE) of up to 85%. Scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy and XPS was used to confirm anchoring onto the graphitic surface.