TY - JOUR
T1 - Photochemical stereospecific hydrogenation of a Ru complex with an NAD +/NADH-type ligand
AU - Fukushima, Takashi
AU - Fujita, Etsuko
AU - Muckerman, James T.
AU - Polyansky, Dmitry E.
AU - Wada, Tohru
AU - Tanaka, Koji
PY - 2009/12/21
Y1 - 2009/12/21
N2 - A polypyridylruthenium complex with an NAD+/NADH model ligand, [Ru(bpy)2(pbn)]2+ [bpy = 2,2'-bipyridine; pbn = 2-(2-pyridyl)-benzo[b]-1,5-naphthyridine] in a D2O/CH 3CN/triethylamine solution, undergoes stereospecific hydrogenation to give Δ-(S)-and Λ-(R)-[Ru(bpy)2(pbnDD)]2+ [pbnDD = 5,10-dideutero-2-(2-pyridyl)benzo-[b]-1,5-naphthyridine] upon visible-light irradiation. This result clearly indicates the pathway via the Π-stacked dimer of the deuterated oneelectron-reduced species. The reduction of [Ru(bpy)2(pbn)]2+ with Na2S 2O4 in D2O did not afford any stereospecific products. Furthermore, the more sterically crowded Ru complex, [Ru(dmb) 2(pbn)]2+ (dmb = 6,6'-dimethyl-2,2'-bipyridine), did not produce the corresponding pbnDD species upon irradiation.
AB - A polypyridylruthenium complex with an NAD+/NADH model ligand, [Ru(bpy)2(pbn)]2+ [bpy = 2,2'-bipyridine; pbn = 2-(2-pyridyl)-benzo[b]-1,5-naphthyridine] in a D2O/CH 3CN/triethylamine solution, undergoes stereospecific hydrogenation to give Δ-(S)-and Λ-(R)-[Ru(bpy)2(pbnDD)]2+ [pbnDD = 5,10-dideutero-2-(2-pyridyl)benzo-[b]-1,5-naphthyridine] upon visible-light irradiation. This result clearly indicates the pathway via the Π-stacked dimer of the deuterated oneelectron-reduced species. The reduction of [Ru(bpy)2(pbn)]2+ with Na2S 2O4 in D2O did not afford any stereospecific products. Furthermore, the more sterically crowded Ru complex, [Ru(dmb) 2(pbn)]2+ (dmb = 6,6'-dimethyl-2,2'-bipyridine), did not produce the corresponding pbnDD species upon irradiation.
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U2 - 10.1021/ic901935u
DO - 10.1021/ic901935u
M3 - Article
C2 - 19928751
AN - SCOPUS:73249138201
VL - 48
SP - 11510
EP - 11512
JO - Inorganic Chemistry
JF - Inorganic Chemistry
SN - 0020-1669
IS - 24
ER -