Resonance Raman and lifetime studies on regioselectively deuteriated ruthenium (II) polypyridyl complexes

W.R. Browne, W. Henry, Paolo Passaniti, M.T. Gandolfi, R. Ballardini, C. O'Connor, Clare Brady, C. Coates, J. Vos, John McGarvey

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Two series of ruthenium(II) polypyridyl complexes [Ru(bipy)2(phpytr)]+ and [Ru(bipy)2(phpztr)]+ (where Hphpytr = 2-(5-phenyl-1H-[1,2,4]triazol-3-yl)-pyridine and Hphpztr = 2-(5-phenyl-1H-[1,2,4]triazol-3-yl)-pyrazine) are examined by electrochemistry, UV/Vis, emission, resonance Raman, transient resonance Raman and transient absorption spectroscopy, in order to obtain a more comprehensive understanding of their excited state electronic properties. The interpretation of the results obtained is facilitated by the availability of several isotopologues of each of the complexes examined. For the pyridine-1,2,4-triazolato based complex the lowest emissive excited state is exclusively bipy based, however, for the pyrazine based complexes excited state localisation on particular ligands shows considerable solvent and pH dependency.
Original languageEnglish
Pages (from-to)386-396
Number of pages11
JournalPhotochemical & Photobiological Sciences
Volume6
Issue number4
DOIs
Publication statusPublished - Feb 2007

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry
  • Biophysics
  • Cell Biology
  • Physical and Theoretical Chemistry

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