title: Ultrafast spectroscopy of a photochromic ruthenium sulfoxide complex.
abstract: Photochromic [Ru(bpy)(2)(OSO)](PF(6)), where bpy is 2,2'-bipyridine and OSO is 2-methylsulfinylbenzoate, was investigated by femtosecond transient absorption spectroscopy. The results show that for both S- and O-bonded isomers, a (3)MLCT state is formed on a femtosecond time scale. Also observed is the formation of multiple metal-to-ligand charge-transfer (MLCT) states, representing different conformers, prior to isomerization on the picosecond time scale. These results and others are compiled in an energy diagram depicting these results.
authors.affiliation: Department of Chemistry and Biochemistry, Nanoscale and Quantum Phenomena Institute, Ohio University, Athens, Ohio 45701, USA.
authors.forename: Beth Anne
authors.initials: BA
authors.lastname: McClure
authors.forename: Jeffrey J
authors.initials: JJ
authors.lastname: Rack