title: A cobalt-NHC complex as an improved catalyst for photochemical hydrogen evolution from water.
abstract: A macrocyclic N-heterocyclic carbene (NHC)-cobalt complex was found to act as an improved H2-evolving catalyst in a [Ru(bpy)3](2+)-sensitized photosystem using methylviologen as a redox acceptor (MV(2+) + e(-) → MV(+)˙, MV(2+) = N,N'-dimethyl-4,4'-bipyridinium), which provides a driving force of only 150 meV for H2 evolution at pH 5.0.
authors.affiliation: Department of Chemistry, Faculty of Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan. ksakai@chem.kyushu-univ.jp kyamauchi@chem.kyushu-univ.jp.
authors.forename: Ken
authors.initials: K
authors.lastname: Kawano
authors.forename: Kosei
authors.initials: K
authors.lastname: Yamauchi
authors.forename: Ken
authors.initials: K
authors.lastname: Sakai