Canadian Journal of Chemistry p. 2528 - 2530 (1996)
Update date:2022-08-11
Topics:
Pham
Westaway
The nitrogen and secondary α-hydrogen-deuterium kinetic isotope effects found for the SN2 reaction between thiophenoxide ion and benzyldimethylphenylammonium ion at different ionic strengths in DMF at 0°C indicate that the structure of the transition state changes markedly with the ionic strength of the reaction mixture. In fact, a more reactant-like, more ionic, transition state is found at the higher ionic strength. This presumably occurs because a more ionic transition state is more stable in the more ionic solvent.
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