Electron transfer from cyclohexane to photoexcited aromatic ions. Generation and kinetics of high-mobility solvent holes

Journal Article · Thu Mar 13 04:00:00 EST 1997 · Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment, amp General Theory

DOI:https://doi.org/10.1021/jp9624717· OSTI ID:502012

Shkrob, I A; Sauer, Jr, M C; Schmidt, K H; Liu, A D; Yan, J; Trifunac, A D ^[1]

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1. Argonne National Lab., IL (United States)

In cyclohexane solutions, aromatic radical cations are produced by two-photon (248 nm) photoionization of aromatic molecules. A novel excited state chemistry is observed; i.e., excitation of these radical cations with a 532 nm laser pulse, delayed by several microseconds, produces the high mobility cation of cyclohexane. The difference of the signals with and without the 532 nm pulse shows the decay of the cyclohexane radical cation free of complications from geminate ion recombination. The biexponential nature of this decay suggests an equilibrium involving the high mobility cation, such as was proposed to explain previous experimental results. 11 refs., 2 figs., 1 tab.

• OSTI ID: 502012
• Journal Information: Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment, amp General Theory, Journal Name: Journal of Physical Chemistry A: Molecules, Spectroscopy, Kinetics, Environment, amp General Theory Journal Issue: 11 Vol. 101; ISSN 1089-5639; ISSN JPCAFH
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
66 PHYSICS
AROMATICS
CATIONS
CHEMICAL REACTION KINETICS
CYCLOHEXANE
ELECTRON TRANSFER
EXCITED STATES
HOLE MOBILITY
LASERS
MOLECULES
NUMERICAL DATA
PHOTOIONIZATION
PHOTOLYSIS
RADICALS
SCAVENGING
SOLVENTS
TIME DEPENDENCE