Photochemical CO2 reduction by rhenium and ruthenium complexes

FUEL 113

Etsuko Fujita, fujita@bnl.gov1, James T. Muckerman, muckerma@bnl.gov1, and Koji Tanaka, ktanaka@ims.ac.jp2. (1) Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973-5000, (2) Coordination Laboratory, Institute for Molecular Science, 5-1 Higashiyama, Myodaiji, Okazaki, Aichi 444-8787, Japan
Rhenium and ruthenium complexes with NAD+ model ligands, Re(pbn)(CO)3Cl, [Rh(pbn)(CO)3(PCy3)]+ and [Ru(bpy)2(pbn)]2+ (bpy = 2,2′-bipyridine, pbn = 2-(2-pyridyl)-benzo[b]-1,5-naphthyridine, Cy = cyclohexyl) were prepared. Our preliminary results indicate that the corresponding complexes with pbnHH (i.e., a bio-inspired NADH-like ligand) are formed upon irradiation through metal-to-ligand charge-transfer (MLCT) excited states. Herein we report the acid-base properties, electrochemical properties, and reactivity of these species toward CO2 reduction.

The research carried out at Brookhaven National Laboratory was supported under contract DE-AC02-98CH10886 with the U.S. Department of Energy.

 

Hybrid Nanotechnologies for an Enhanced CO2 Fixation
3:00 PM-6:25 PM, Monday, April 7, 2008 Morial Convention Center -- Rm. 239, Oral

Division of Fuel Chemistry

The 235th ACS National Meeting, New Orleans, LA, April 6-10, 2008