Nonthermalized excited states in Ru (II) polypyridyl complexes probed by ultrafast transient absorption spectroscopy with high photon energy excitation

SA McFarland, KAWY Cheng, FS Lee…

Index: McFarland, Sherri A.; Cheng, Karen A. W. Y.; Lee, Felix S.; Cozens, Frances L.; Schepp, Norman P. Canadian Journal of Chemistry, 2008 , vol. 86, # 12 p. 1118 - 1125

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Citation Number: 5

Abstract

The picosecond excited state dynamics of a series of homoleptic Ru (II) polypyridyl complexes (where LL= bpy, dmb, dmeob, dfmb, or dttb) have been investigated in aqueous solution at room temperature using femtosecond transient absorption spectroscopy with high photon energy excitation. All of the complexes studied produced similar spectroscopic signatures: a near-instantaneous bleach centered at 470-500 nm corresponding to the ...