LUMINESCENCE STUDIES OF RARE EARTH COMPLEXES: BENZOYLACETONATE AND DIBENZOYLMETHIDE CHELATES

Journal Article · Sun Apr 01 04:00:00 EST 1962 · J. Mol. Spectroscopy

DOI:https://doi.org/10.1016/0022-2852(62)90031-0· OSTI ID:4797906

Whan, R E; Crosby, G A

Systematic studies of the luminescence of the trisbenzoylacetonates and trisdibenzoylmethides of the trivalent rare earth ions (except promethium and cerium) are reported. Molecular fluorescence and phosphorescence spectra of both series of chelates are presented. The chelates were arranged according to total luminescence and phosphorescence yields, and the variations in yields are interpreted in terms of internal radiationless processes. The role of intramolecular energy transfer in these systems as a quenching mechanism is discussed. Photographs of bright line spectra of coordingted Eu/sup 3+/, Tb/sup 3+/, Dy /sup 3+/, and Sm/sup 3+/ are included and the possibility of employing these compounds as optical masers is pointed out. (auth)

• Research Organization: Univ. of New Mexico, Albuquerque
• NSA Number: NSA-16-014739
• OSTI ID: 4797906
• Journal Information: J. Mol. Spectroscopy, Journal Name: J. Mol. Spectroscopy Vol. Vol: 8
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACETONE
BENZOYL RADICALS
CHELATES
CHEMISTRY
DYSPROSIUM COMPOUNDS
ESTERS
EUROPIUM COMPOUNDS
FILMS
FLUORESCENCE
HEAT TREATMENTS
LUMINESCENCE
MASERS
METHANE
PHOSPHORUS
QUENCHING
RARE EARTHS
REACTION KINETICS
SAMARIUM COMPOUNDS
SPECTRA
SPECTRAL SHIFT
TERBIUM COMPOUNDS