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Photochemistry of hetero-tris-chelated ruthenium(II) polypyridine complexes in dichloromethane

Journal Article · · Inorganic Chemistry; (USA)
DOI:https://doi.org/10.1021/ic00311a008· OSTI ID:5197288
 [1];  [2];  [3];  [4];
  1. Univ. of North Carolina, Chapel Hill (USA)
  2. Univ. of Vermont, Burlington (USA)
  3. IBM Corp., Essex Junction, VT (USA)
  4. Rensselaer Polytechnic Institute, Troy, NY (USA)
+ Show Author Affiliations

The results of an investigation of the photochemical and photophysical properties of a series of complexes of the type (RuL{sub 2}L{prime})Cl{sub 2} are reported, where L and L{prime} are bipyridine, phenanthroline, and methyl and phenyl derivatives of those ligands. All measurements were conducted in CH{sub 2}Cl{sub 2}. Luminescence lifetime and quantum yield data indicate that the ligand which accepts the electron in the localized MLCT excited state plays a significant role in the excited-state decay. HPLC analysis of the organic photoproducts from mixed-ligand complexes shows that flexible bipyridyl ligands are preferentially photolabilized, consistent with a dissociative mechanism involving an open-ended bipyridine in the transition state. 55 refs., 2 tabs.

OSTI ID:
5197288
Journal Information:
Inorganic Chemistry; (USA), Journal Name: Inorganic Chemistry; (USA) Journal Issue: 12 Vol. 28:12; ISSN 0020-1669; ISSN INOCA
Country of Publication:
United States
Language:
English

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Related Subjects

14 SOLAR ENERGY
140505* -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500 -- Photochemistry
AROMATICS
AZAARENES
AZINES
CHEMISTRY
CHLORINE COMPOUNDS
COMPLEXES
CONVERSION
DATA
ENERGY CONVERSION
EXPERIMENTAL DATA
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHENANTHROLINES
PHOTOCHEMISTRY
PYRIDINES
RUTHENIUM COMPLEXES
TRANSITION ELEMENT COMPLEXES