The Swain equation relates the kinetic isotope effect for the proton/tritium combination with that of the proton/deuterium combination according to:
where kH,D,T are the reaction rate constants for the protonated, deuterated and tritiated reactants respectively.The Swain equation relates the kinetic isotope effect for the proton/tritium combination with that of the proton/deuterium combination according to: where kH,D,T is the reaction rate constant for the protonated, deuterated and tritiated reactants.