Resonance Raman and lifetime studies on regioselectively deuteriated ruthenium(ii) polypyridyl complexes
| Autor: | Browne, Wesley R., Henry, William, Passaniti, Paolo, Gandolfi, Maria Teresa, Ballardini, Roberto, O’Connor, Christine M., Brady, Clare, Coates, Colin G., Vos, Johannes G., McGarvey, John J., M. O'Connor, C. |
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| Přispěvatelé: | Synthetic Organic Chemistry |
| Rok vydání: | 2007 |
| Předmět: |
Luminescence
Pyrazine Photochemistry Pyridines Molecular Conformation PH CONTROL Infrared spectroscopy chemistry.chemical_element Electrons Spectrum Analysis Raman Sensitivity and Specificity VIBRATIONAL SPECTROSCOPY Ruthenium (3)MLCT STATES symbols.namesake chemistry.chemical_compound TRIS(BIPYRIDINE)RUTHENIUM(II) TRANSFER EXCITED-STATES Ultrafast laser spectroscopy Electrochemistry Organometallic Compounds Physical and Theoretical Chemistry MONONUCLEAR Spectroscopy Temperature RU(II) Stereoisomerism LOCALIZATION Deuterium Resonance (chemistry) chemistry PHOTOPHYSICAL PROPERTIES Excited state symbols Physical chemistry LIGANDS Raman spectroscopy |
| Zdroj: | Photochemical & Photobiological Sciences, 6(4), 386-396. ROYAL SOC CHEMISTRY |
| ISSN: | 1474-9092 1474-905X |
| DOI: | 10.1039/b613471h |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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