Photoconductivity induced by single-proton excitation of aromatic molecules in liquid hydrocarbons
The spectral dependence of the photoconductivity of several aromatic solutes (anthracene, 1,2-benzanthracene, perylene, pyrene, azulene, ..cap alpha..-methylnaphthalene, and triphenylamine) in liquid hydrocarbon solvents (neopentane, 2,2,4-trimethylpentane(2,2,4-TMP), 2,2,4,4-tetramethylpentane (2,2,4,4-TMP), and n-pentane) are reported. In liquids which exhibit high thermal electron mobilities, relative maxima or shoulders are detected in the photoconductivity spectra. The corresponding transitions are thought to involve the formation of Rydberg states as precursors of separated charges. For anthracene and azulene, the transitions occur at approximately the same energy where Rydberg lines are observed in the gas phase. Quenching of the photoconductivity by perfluoromethylcyclohexane and by perfluoro-n-hexane supports this hypothesis.
- Research Organization:
- Brookhaven National Lab., Upton, NY
- OSTI ID:
- 6675209
- Journal Information:
- J. Phys. Chem.; (United States), Vol. 88:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMINES
EXCITATION
PHOTOCONDUCTIVITY
ANTHRACENE
AZULENE
BENZANTHRACENE
HYDROCARBONS
SOLVENT PROPERTIES
NAPHTHALENE
PERYLENE
PYRENE
EXPERIMENTAL DATA
PHOTONS
QUENCHING
SPECTRA
AROMATICS
CONDENSED AROMATICS
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTARY PARTICLES
ENERGY-LEVEL TRANSITIONS
INFORMATION
MASSLESS PARTICLES
NUMERICAL DATA
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987)
400500 - Photochemistry