Accession Number : AD0669987

Title :   ON THE MECHANISM OF ENERGY TRANSFER IN ORGANIC COMPLEXES OF RARE EARTHS (O MEKHANIZME MIGRATSII ENERGII V ORGANICHESKIKH KOMPLEKSAKH REDKIKH ZEMEL),

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Kuznetsova,V. V. ; Sevchenko,A. N.

Report Date : 17 MAY 1968

Pagination or Media Count : 8

Abstract : Emission spectra were obtained of the rare earth ions both for the crystalline and solution states of compounds of europium and samarium with beta-diketones and with derivatives of salicyaldehyde, 2-hydroxynaphthaldehyde, picric acid, phenanthroline, and dipyridyl. The measurements of the duration of luminescence of the various complexes indicate that the process of transfer of energy does not materially increase the lifetime of the excited state of the ions of the rare earths. The difference in the durations of the excited states for the different complexes and salts is no greater than the variation found in going from one simple salt to another, and cannot be explained by the difference in radiationless deactivation within the lanthanide ion.

Descriptors :   (*COMPLEX COMPOUNDS, *MOLECULAR ENERGY LEVELS), EUROPIUM COMPOUNDS, SAMARIUM COMPOUNDS, KETONES, ALDEHYDES, ALCOHOLS, POLYCYCLIC COMPOUNDS, NITRATES, MOLECULAR ENERGY LEVELS, LUMINESCENCE, QUENCHING(INHIBITION)

Subject Categories : Inorganic Chemistry
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE