Resonant dissociative electron transfer of the presolvated electron to CCl4 in liquid: Direct observation and lifetime of the CCl4*- transition state.
We report a pump-probe femtosecond transient absorption spectroscopic study on the electron transfer reaction of CCl(4) in liquid ethanol. By direct observations of the presolvated electron and of the reaction transition state CCl(4) (*-), this study provides direct evidence of the resonant dissociative electron transfer (RDET) of the presolvated electron to CCl(4). Moreover, the lifetime of CCl(4) (*-) in ethanol is directly obtained from the decay kinetics and its measured value is found to be nearly identical to its gas-phase value. Hence, these results also imply that RDET can be an efficient process in an aqueous environment.
Wang
C-R
CR
Department of Physics and Astronomy and Department of Chemistry, University of Waterloo, 200 University Ave. West, Waterloo, Ontario N2L 3G1, Canada.
Drew
K
K
Luo
T
T
Lu
M-J
MJ
Lu
Q-B
QB
D002251:Carbon Tetrachloride / Q000737:chemistry*; D004579:Electron Transport; D004583:Electrons; D000431:Ethanol / Q000737:chemistry; D005740:Gases; D007700:Kinetics; D012997:Solvents / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet / Q000379:methods*
D005740:Gases; D012997:Solvents; D000431:Ethanol; D002251:Carbon Tetrachloride