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Volume 155, 2012
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Ru complexes containing pyridine dicarboxylate ligands: electronic effects on their catalytic activity toward wateroxidation

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Abstract

Two series of mononuclear ruthenium complexes [Ru(pdc)L3] (H2pdc = 2,6-pyridinedicarboxylic acid; L = 4-methoxypyridine, 1; pyridine, 2; pyrazine, 3) and [Ru(pdc)L2(dmso)] (dmso = dimethyl sulfoxide; L = 4-methoxypyridine, 4; pyridine, 5) were synthesized and spectroscopically characterized. Their catalytic activity toward water oxidation has been examined using CeIV (Ce(NH4)2(NO3)6) as the chemical oxidant under acidic conditions. Complexes 1, 2 and 3 are capable of catalyzing CeIV-driven water oxidation while 4 and 5 are not active. Electronic effects on their catalytic activity were illustrated: electron donating groups increase the catalytic activity.

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Article information


Submitted
06 Jun 2011
Accepted
10 Jun 2011
First published
06 Jul 2011

Faraday Discuss., 2012,155, 267-275
Article type
Paper

Ru complexes containing pyridine dicarboxylate ligands: electronic effects on their catalytic activity toward water oxidation

J. An, L. Duan and L. Sun, Faraday Discuss., 2012, 155, 267
DOI: 10.1039/C1FD00101A

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