Electron photoejection in carbanions. Final report

Technical Report · Sun Jan 01 04:00:00 EST 1984

OSTI ID:5787905

Tolbert, L M

We have been investigating the photochemistry of resonance-stabilized carbanions. Photoexcited carbanions are very strong reductants, and such electron-transfer photosensitizers might find utility as models and, eventually, agents, for solar energy conversion devices. Our initial work has concentrated on evaluating the factors which control carbanion photochemistry and select among the various decay pathways such as isomerization or electron ejection. A ground state carbanion has a specific and well-defined space-charge relationship such that the negative charge is not evenly distributed, but rather is localized at certain atoms in the molecule. In the excited state, a new space-charge relationship exists, and the charge is redistributed to other atoms. It is this phenomenon which we believe dominates the photochemistry of such species and which provides a framework for this report of our work on carbanion photoreactivity. 22 refs.

• Research Organization: Kentucky Univ., Lexington (USA). Dept. of Chemistry
• DOE Contract Number: AS05-79ER10424
• OSTI ID: 5787905
• Report Number(s): DOE/ER/10424-4; ON: DE85011748
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140505 -- Solar Energy Conversion-- Photochemical
Photobiological
& Thermochemical Conversion-- (1980-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400302 -- Organic Chemistry-- Isotope Effects-- (-1987)
400500* -- Photochemistry
ALKYL RADICALS
ALLYL RADICALS
ANIONS
AROMATICS
CARBANIONS
CARBENES
CHARGE DISTRIBUTION
CHARGED PARTICLES
CHEMISTRY
CONVERSION
DEUTERIUM
ELECTRON TRANSFER
ENERGY CONVERSION
ENERGY LEVELS
EXCITED STATES
FLUORESCENCE
HYDROGEN ISOTOPES
HYDROXY COMPOUNDS
IONS
ISOTOPE EFFECTS
ISOTOPES
LIGHT NUCLEI
LUMINESCENCE
NAPHTHOLS
NUCLEI
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
PHENOLS
PHOTOCHEMISTRY
RADICALS
REDUCING AGENTS
RESEARCH PROGRAMS
SOLAR ENERGY CONVERSION
SPACE CHARGE
STABLE ISOTOPES