TY - JOUR
T1 - Chemical, electrochemical, and photochemical catalytic oxidation of water to dioxygen with mononuclear ruthenium complexes
AU - Roeser, Stephan
AU - Farràs, Pau
AU - Bozoglian, Fernando
AU - Martínez-Belmonte, Marta
AU - Benet-Buchholz, Jordi
AU - Llobet, Antoni
PY - 2011/2/18
Y1 - 2011/2/18
N2 - 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.
AB - 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.
KW - catalysis
KW - oxidation
KW - redox chemistry
KW - ruthenium
KW - water splitting
UR - https://www.scopus.com/pages/publications/79951779837
U2 - 10.1002/cssc.201000358
DO - 10.1002/cssc.201000358
M3 - Article
C2 - 21275063
AN - SCOPUS:79951779837
SN - 1864-5631
VL - 4
SP - 197
EP - 207
JO - ChemSusChem
JF - ChemSusChem
IS - 2
ER -