4.7 Article

Ultrafast Spectroscopy of a Photochromic Ruthenium Sulfoxide Complex

Journal

INORGANIC CHEMISTRY
Volume 50, Issue 16, Pages 7586-7590

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ic200532p

Keywords

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Funding

  1. NSF [CHE 0809699, CHE 0947031]
  2. NDSEG
  3. Direct For Mathematical & Physical Scien
  4. Division Of Chemistry [0947031] Funding Source: National Science Foundation

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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.

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