Chemical, electrochemical, and photochemical catalytic oxidation of water to dioxygen with mononuclear ruthenium complexes

Stephan Roeser, Pau Farràs, Fernando Bozoglian, Marta Martínez-Belmonte, Jordi Benet-Buchholz, Antoni Llobet

Research output: Contribution to journalArticleResearchpeer-review

75 Citations (Scopus)

Abstract

Four new RuII-Cl and RuII-H2O complexes containing the meridional 2,2′:6′,2″-terpyridine (trpy) ligand and the chelating 2-(5-phenyl-1H-pyrazol-3-yl)pyridine (H3p) ligand of general formula in- and out-[RuII(trpy)(H3p)(X)]n+ (X=Cl, n=1; X=H2O, n=2) have been prepared, isolated and thoroughly characterized both in solution and in the solid state. In solution, all the complexes are characterized spectroscopically by UV/Vis and NMR, and their redox properties investigated by means of cyclic voltammetry, square wave voltammetry, and coulometry. In the solid state, monocrystal X-ray diffraction analysis was carried out for the in and out Ru-Cl complexes. The capacity of the Ru-aqua complexes to act as water oxidation catalysts (WOCs) was also investigated chemically, electrochemically, and photochemically. The performance of these complexes has also been compared to two previously described complexes of general formula in- and out-[RuII(trpy)(Hbpp)(H2O)] 2+ (Hbpp is 2,2′-(1H-pyrazole-3,5-diyl)dipyridine)), the capacity of which as WOCs had not been previously described. © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish
Pages (from-to)197-207
JournalChemSusChem
Volume4
Issue number2
DOIs
Publication statusPublished - 18 Feb 2011

Keywords

  • catalysis
  • oxidation
  • redox chemistry
  • ruthenium
  • water splitting

Fingerprint Dive into the research topics of 'Chemical, electrochemical, and photochemical catalytic oxidation of water to dioxygen with mononuclear ruthenium complexes'. Together they form a unique fingerprint.

Cite this