Accession Number : AD0700270

Title :   PROPOSED METHOD FOR DETERMINING ALL THE RATE CONSTANTS OF PROCESSES INVOLVING THE LOWEST TRIPLET STATE AT LOW TEMPERATURE.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV LOS ANGELES DEPT OF CHEMISTRY

Personal Author(s) : El-Sayed,M. A.

Report Date : JAN 1970

Pagination or Media Count : 7

Abstract : Proposed is a simple method for determining the rate constants of the processes to and from the different z.f. levels of the lowest triplet state for which both radiative and nonradiative processes occur with different rates (i.e., the general cases). The method is based on steady-state phosphorescence intensity measurements with and without microwave saturation of the different z.f. transitions. The only requirement to use this method, like all other methods, is that the temperature is low enough that the spin-lattice processes are assumed absent. (Author)

Descriptors :   (*PHOSPHORESCENCE, *RELAXATION TIME), MOLECULAR ENERGY LEVELS, KINETIC THEORY

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE