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친핵성치환반응에서 압력과 온도변화에 따른 친핵체 효과

Nucleophile Effects for the Reactions of Nucleophilic Substitution by Pressure and Temperature

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주제분류화학

초록

Abstract

Kinetics for the nucleophiles have been studied under high vacuum and high pressures in various tem-peratures. Pseudo-first order rate constants, second order rate constants, thermodynamic parameters and Hammett ρ-val-ues are determined. The values of V. , β. and S. are all negative. The Hamet ρ-values are negative for thenucleophile ( X) over the pressure range studied. The results of kinetic studies for pressure and nucleophilet show thatthese reactions proceed in typical SN2 reaction mechanism and change of mechanism.

참고문헌 (2)

  1. "Advances in Physical Organic Chemistry", academic press, pp.~1964
  2. "Physical Organic Chemystry", john wiley & sons, pp.~1987

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