Mechanistic insight into proton-coupled mixed valency?

Chemical Communications Pub Date: 2015-10-19 DOI: 10.1039/C5CC07101A

Abstract

Stabilisation of the mixed-valence state in [Mo2(TiPB)3(HDOP)]2+ (HTiPB = 2,4,6-triisopropylbenzoic acid, H2DOP = 3,6-dihydroxypyridazine) by electron transfer (ET) is related to the proton coordinate of the bridging ligands. Spectroelectrochemical studies suggest that ET is slower than 109 s?1. The mechanism has been probed using DFT calculations, which show that proton transfer induces a larger dipole in the molecule resulting in ET.

Graphical abstract: Mechanistic insight into proton-coupled mixed valency
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