Mononuclear ruthenium-water oxidation catalysts: Discerning between electronic and hydrogen-bonding effects

Somnath Maji, Isidoro López, Fernando Bozoglian, J. Benet-Buchholz, Antoni Llobet

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Abstract

New mononuculear complexes of the general formula [Ru(trpy)(n,n′- F2-bpy)X]m+ [n = n′ = 5, X = Cl (3+) and H2O (52+); n = n′ = 6, X = Cl (4+) and H2O (62+); trpy is 2,2′:6′:2″- terpyridine] have been prepared and thoroughly characterized. The 5,5′- and 6,6′-F2-bpy ligands allow one to exert a remote electronic perturbation to the ruthenium metal center, which affects the combination of species involved in the catalytic cycle. Additionally, 6,6′-F 2-bpy also allows through-space interaction with the Ru-O moiety of the complex via hydrogen interaction, which also affects the stability of the different species involved in the catalytic cycle. The combination of both effects has a strong impact on the kinetics of the catalytic process, as observed through manometric monitoring. © 2013 American Chemical Society.
Original languageEnglish
Pages (from-to)3591-3593
JournalInorganic Chemistry
Volume52
Issue number7
DOIs
Publication statusPublished - 1 Apr 2013

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    Maji, S., López, I., Bozoglian, F., Benet-Buchholz, J., & Llobet, A. (2013). Mononuclear ruthenium-water oxidation catalysts: Discerning between electronic and hydrogen-bonding effects. Inorganic Chemistry, 52(7), 3591-3593. https://doi.org/10.1021/ic3028176