We designed novel trans-spanning ligands <b>2</b> and <b>3</b> because we wanted to test several hypotheses, including the proposal that loss of an axial pyridine or isoquinoline ligand degraded water oxidation catalysts based on the Ru(II)-(2,2’-bipyridine-6,6’-dicarboxylic acid) fragment used by Sun’s group. Synthesis, structure and catalyst performance results using sacrificial oxidants and electrochemistry will be presented.

Trans-spanning ligands for unprecedented macrocycle cavity size, applied to water oxidation catalysis

252nd National Meeting (2016)

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