Lanthanide ions as sensitive probes in intermolecular energy transfer and organic photochemistry. Final report
Technical Report
·
OSTI ID:6210506
The process of energy transfer from selected organic sensitizers to lanthanide ion acceptors such as trivalent europium and terbium was investigated. A variety of compounds have been tested for ability to transfer electronic excitation energy to the rare-earth ions. Selected aromatic carbonyl sensitizers found to be efficient triplet energy donors were used in transfer experiments in both liquid solutions and rigid matrices. Measurement of sensitized rare-earth fluorescence, in combination with the donor emission and excitation data, allowed accurate evaluation of rate constants for individual radiative and radiationless processes. Therefore, the lanthanide ions, with their characteristic narrow-band, intra-4f, parity-forbidden luminescence can be used not only as efficient energy acceptors but also as sensitive probes for the determination of intramolecular and intermolecular migration and dissipation of electronic excitation energy.
- Research Organization:
- Georgetown Univ., Washington, DC (USA). Dept. of Chemistry
- OSTI ID:
- 6210506
- Report Number(s):
- ORO-3797-65
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
AROMATICS
CATIONS
CHARGED PARTICLES
CHEMISTRY
ELEMENTS
ENERGY TRANSFER
EUROPIUM COMPOUNDS
INTERMOLECULAR FORCES
IONS
METALS
ORGANIC COMPOUNDS
PHOTOCHEMISTRY
PROBES
RARE EARTH COMPOUNDS
RARE EARTHS
RESEARCH PROGRAMS
SPECTROSCOPY
TERBIUM COMPOUNDS
400500* -- Photochemistry
AROMATICS
CATIONS
CHARGED PARTICLES
CHEMISTRY
ELEMENTS
ENERGY TRANSFER
EUROPIUM COMPOUNDS
INTERMOLECULAR FORCES
IONS
METALS
ORGANIC COMPOUNDS
PHOTOCHEMISTRY
PROBES
RARE EARTH COMPOUNDS
RARE EARTHS
RESEARCH PROGRAMS
SPECTROSCOPY
TERBIUM COMPOUNDS