SPECTROSCOPIC STUDIES OF RARE EARTH CHELATES

Journal Article · Sat Dec 01 04:00:00 EST 1962 · Journal of Physical Chemistry (U.S.)

DOI:https://doi.org/10.1021/j100818a041· OSTI ID:4749692

Crosby, G A; Whan, R E; Freeman, J J

ABS>Intramolecular energy transfer in rare earth chelates is discussed and the role of the triplet states of the complexes in this type of energy migration is reviewed briefly. A spectroscopic study of the chelates of La/sup 3+/, Pr/sup 3+/, Sm/sup 3+/, Eu/sup 3+/, and Gd/sup 3+/ with o- hydroxybenzophenone is reported. Luminescence spectra (at 77 deg K) of these compounds are presented and the triplet state energies of the chelates and their dissociation products were determined utilizing energy transier as an aid in interpreting the complicated luminescences observed. Very week line'' emission from the coordinated Pr/sup 3+/ ion is reported and selective excitation of the / sup 1/D/sub 2/, /sup 3/P/sub 0/, and /sup 3/P/sub 1/ resonance leve ls of this ion via intramolecular energy transfer is demonstrated. (auth)

• Research Organization: Univ. of New Mexico, Albuquerque
• Sponsoring Organization: USDOE
• NSA Number: NSA-17-006085
• OSTI ID: 4749692
• Journal Information: Journal of Physical Chemistry (U.S.), Journal Name: Journal of Physical Chemistry (U.S.) Vol. Vol: 66; ISSN JPCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHELATES
CHEMISTRY
DECOMPOSITION
EUROPIUM COMPLEXES
EXCITATION
GADOLINIUM COMPLEXES
KETONES
LANTHANUM COMPLEXES
LUMINESCENCE
PHENYL RADICALS
PRASEODYMIUM COMPLEXES
RARE EARTHS
SAMARIUM COMPLEXES
SPECTROSCOPY