Solvation dynamics of electrons ejected by picosecond Dye laser pulse excitation of p-phenylenediamine in several alcoholic solutions

Journal Article · Thu Nov 15 04:00:00 EST 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100386a004· OSTI ID:6081155

Hirata, Yoshinori; Mataga, Noboru ^[1]

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1. Osaka Univ. (Japan)

The dynamic behavior of the electron ejected by two-photon ionization of p-phenylenediamine in several alcohols has been investigated by picosecond transient absorption measurements, and new spectroscopic evidence concerning the solvation dynamics of the electron in alcoholic solvents at room temperature is presented. Emphasis is placed on their finding of an intermediate state in the solvation process, which invalidates the description of solvation by a simple two-state model. A gradual deepening of the trap, manifest as a continuous blue shift of the absorption band maximum, is characterized by two time constants, {tau}{sub D2} and {tau}{sub L1}.

• OSTI ID: 6081155
• Journal Information: Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 94:23; ISSN JPCHA; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400500* -- Photochemistry
ABSORPTION SPECTROSCOPY
AMINES
ANILINE
AROMATICS
DATA
DYE LASERS
DYNAMICS
ELECTRONS
ELEMENTARY PARTICLES
EXPERIMENTAL DATA
FERMIONS
INFORMATION
IONIZATION
LASERS
LEPTONS
LIQUID LASERS
MECHANICS
MEDIUM TEMPERATURE
NUMERICAL DATA
ORGANIC COMPOUNDS
SOLVATED ELECTRONS
SOLVATION
SPECTROSCOPY