Accession Number:

ADA067748

Title:

Quenching of Emission and of Photochemistry for Aqueous Rh(NH3)5Cl(2+).

Descriptive Note:

Technical rept.,

Corporate Author:

UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES DEPT OF CHEMISTRY

Personal Author(s):

• Adamson,Arthur W.
• Fukuda,Robert
• Larson,Marina
• Macke,Helmut
• Puaux,Jean Pierre

Report Date:

1979-04-01

Pagination or Media Count:

13.0

Abstract:

Aqueous RhNH35Cl2 shows emission and excited state absorption, ESA, decaying with the same lifetime. The temperature dependence of emission and of ESA, attributed to the first triplet thexi state, corresponds to an apparent activation energy of 5.4 plus or minus 0.3 kcalmole. The photochemistry, predominantly chloride aquation, is also quenched. In the case of OH-, results indicate that 85-90 of the photoreaction is quenched on complete emission quenching.

Descriptors:

• *PHOTOCHEMICAL REACTIONS
• *METAL COMPLEXES
• *RHODIUM COMPOUNDS
• EXCITATION
• EMISSION SPECTRA
• QUENCHING
• AMINES
• ABSORPTION SPECTRA
• HYDROXYL RADICALS
• CARBONATES
• COMPLEX IONS
• ACTIVATION ENERGY

Subject Categories:

• Inorganic Chemistry
• Organic Chemistry
• Radiation and Nuclear Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE