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Published March 1, 1996 | public
Journal Article

Femtosecond elementary dynamics of transition states and asymmetric α-cleavage in Norrish reactions

Abstract

In this Letter, we report studies of the femtosecond dynamics of transition states and asymmetric α-cleavage in Norrish type-I reactions. Systematically, we consider the dynamics of dissociation along two reaction coordinates in methyl ethyl ketone and diethyl ketone, and compare these results with those of dimethyl ketone and methyl chloro ketone. The concept of concertedness as the system moves away from the transition-state region is examined and the primary and secondary processes involved in the α-cleavage are resolved. We compare experimental results with theoretical predictions of impulsive and statistical models.

Additional Information

© 1996 Elsevier B.V. Received 21 December 1995. This research was supported by grants from the Air Force Office of Scientific Research and by the National Science Foundation. We wish to thank Mr. Ju Guo and Mr. Brent Horn for their help with some of the experiments and for useful suggestions.

Additional details

Created:
August 20, 2023
Modified:
October 20, 2023