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Updated: Feb 7, 2026

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Controlling Photoisomerization Reactivity Through Single Functional Group Substitutions in Ruthenium Phosphine
Gilbert K Kosgei1, Douglas J Breen1, Robert W Lamb2
1Department of Chemistry and Chemical Biology , 1 University of New Mexico , Albuquerque , New Mexico 87131 , United States.
Abstract:
We report the crystallography, emission spectra, femtosecond pump-probe spectroscopy, and density functional theory computations for a series of ruthenium complexes that comprise a new class of chelating triphenylphosphine based ligands with an appended sulfoxide moiety. These ligands differ only in the presence of the para-substitutent (e.g., H, OCH3, CF3). The results show a dramatic range in photoisomerization reactivity that is ascribed to differences in the electron density of the phosphine ligand donated to the ruthenium and the nature of the excited state.
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