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Stereochemical consequences of bromine-for-halogen substitutions in the gas phase

Journal Article · · J. Phys. Chem.; (United States)
DOI:https://doi.org/10.1021/j100412a088· OSTI ID:5035114
The stereochemistry of translationally excited bromine-for-halogen substitution was studied in gaseous 2(S)- and 2(R)- halopropionyl halides. Net inversion of configuration was observed for /sup 75/Br-for-X substitutions with a trend of increasing inversion as the displaced atom was varied in the series, X = F, Cl, Br. A correlation with previous studies on /sup 18/F-for-X and /sup 34m/Cl-for-X substitutions also showed increased inversion with increased mass of the displacing agent. In addition, these recoil atom substitutions showed an apparent independence from the free-energy requirement of reaction.
Research Organization:
Brookhaven National Lab., Upton, NY
DOE Contract Number:
AC02-76CH00016; FG02-84ER13231
OSTI ID:
5035114
Journal Information:
J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:21; ISSN JPCHA
Country of Publication:
United States
Language:
English

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