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unusual facts about Kinetic isotope effect


Kinetic isotope effect

3.The Arrhenius pre-exponential factors AD/AH is not equal to 1.


Transient kinetic isotope fractionation

Transient kinetic isotope effects (or fractionation) occur when the reaction leading to isotope fractionation does not follow pure first-order kinetics and therefore isotopic effects cannot be described with the classical equilibrium fractionation equations or with steady-state kinetic fractionation equations (also known as the Rayleigh equation).


see also