Accession Number:

ADA063482

Title:

Whither Inorganic Photochemistry. A Parochial View,

Descriptive Note:

Corporate Author:

UNIVERSITY OF SOUTHERN CALIFORNIA LOS ANGELES DEPT OF CHEMISTRY

Personal Author(s):

• Adamson,Arthur W.

Report Date:

1978-07-01

Pagination or Media Count:

31.0

Abstract:

The main streams of development of the photochemistry of coordination compounds are summarized and related to current areas of major activity. Several are illustrated in terms of work in progress in the authors laboratory. The d3 system of CrIII complexes has become the paradigm one for the field, and detailed studies of emission lifetimes and of rates of primary photoproduct formation clarify the chemistry of the first doublet and quartet thermally equilibrated excited thexi states. New rules governing emission lifetimes are presented. Excited state absorption spectra and possible resonance Raman spectroscopy of thexi states are described for RhIII complexes. Results on the photocehmistry of CoIII ammines having a Co-S bond are given, and on the chemistry and photophysics of aqueous polymers of PtCN42-. Likely directions of development in the next decade are discussed. Existing and new model systems will be explored in increasing depth there will be major advances in elucidating the reaction mechanisms of thexi states and on their spectroscopy and thermodynamics. Studies on solar energy conversion systems will continue, with some laboratory but no economic success. Author

Descriptors:

• *PHOTOCHEMICAL REACTIONS
• *INORGANIC COMPOUNDS
• LIFE EXPECTANCY(SERVICE LIFE)
• EXCITATION
• RAMAN SPECTROSCOPY
• EMISSION SPECTRA
• THERMAL STABILITY
• ELECTRONIC STATES
• MOLECULAR STRUCTURE
• ABSORPTION SPECTRA
• CHROMIUM COMPOUNDS
• METAL COMPLEXES
• RHENIUM COMPOUNDS

Subject Categories:

• Inorganic Chemistry
• Radiation and Nuclear Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE