NDLI: Chemical and photochemical water oxidation catalyzed by novel ruthenium complexes comprising a negatively charged NC<sup>NHC</sup>O ligand

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Catalysis Science & Technology Vol - 7 Issue - 1

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Catalysis Science & Technology Vol -1

Chemical and photochemical water oxidation catalyzed by novel ruthenium complexes comprising a negatively charged NC^NHCO ligand

Content Provider	Royal Society of Chemistry (RSC)
Author	Khattak, Zafar A. K. Chaemcheun, Somboon Chen, Cheng Zhou, Kui Su, Wei Verpoort, Francis Younus, Hussein A.
Copyright Year	2017
Abstract	Incorporation of negatively charged moieties into complexes is a promising strategy to develop water oxidation catalysts with high stability and low over-potentials. We reported here the synthesis of a novel pincer-type ligand precursor, 1-(pyridin-2-ylmethyl)-3-methylcarboxylate-imidazolium (1). Deprotonation of C2-H of 1 resulted in formation of NCNHCO, a negatively charged asymmetric N-heterocyclic carbene (NHC). Complexes [Ru(NCNHCO)(terpy)]+ (2) and RuCl(NCNHCO)(DMSO)(pic) (3) were prepared and capable of decomposing water chemically and photo-chemically. Under acidic conditions, 4-picoline/H2O exchange in 3 was detected by UV-vis and 1H NMR, forming the corresponding Ru–aqua complex. In a typical three-component light-induced water oxidation, a turnover number of 273 was attained employing 3, which demonstrated catalytic ability comparable to those state-of-the-art catalysts.
Starting Page	387
Ending Page	395
Page Count	9
File Format	HTM / HTML PDF
ISSN	20444753
Volume Number	7
Issue Number	2
Journal	Catalysis Science & Technology
DOI	10.1039/c6cy02333a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Water Persistent carbene Picoline DMSO NCNHCO Ligand Dimethyl sulfoxide Nuclear magnetic resonance Turnover number
Content Type	Text
Resource Type	Article
Subject	Catalysis

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