title: Photochemical H2 evolution from water catalyzed by a dichloro(diphenylbipyridine)platinum(ii) derivative tethered to multiple viologen acceptors.
abstract: A new single-component photocatalyst for the reduction of water to H2, a dichloro(dpbpy)platinum(ii) derivative (dpbpy = 4,4'-diphenyl-2,2'-bipyridine) tethered to four pendant viologen acceptors (1), is shown to exhibit twice higher photocatalytic efficiency than the previously reported dichloro(bpy)-platinum(ii) analog (; bpy = 2,2'-bipyridine), consistent with the higher absorptivity of at the metal-to-ligand charge transfer ((1)MLCT) band due to the larger π-conjugation in dpbpy relative to bpy.
authors.affiliation: Department of Chemsitry, Faculty of Science, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan. kyo_kitamoto@chem.kyushu-univ.jp ksakai@chem.kyushu-univ.jp and International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
authors.forename: Kyoji
authors.initials: K
authors.lastname: Kitamoto
authors.affiliation: Department of Chemsitry, Faculty of Science, Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan. kyo_kitamoto@chem.kyushu-univ.jp ksakai@chem.kyushu-univ.jp and International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, Motooka 744, Nishi-ku, Fukuoka 819-0395, Japan.
authors.forename: Ken
authors.initials: K
authors.lastname: Sakai
mesh_terms: D002384:Catalysis; D006859:Hydrogen / Q000737:chemistry*; D009944:Organoplatinum Compounds / Q000737:chemistry*; D010777:Photochemistry; D014755:Viologens / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D009944:Organoplatinum Compounds; D014755:Viologens; D014867:Water; C007339:dichloro(dipyridine)platinum II; D006859:Hydrogen