Preferred Label : steric isotope effect;
IUPAC definition : A secondary isotope effect attributed to the different vibrational amplitudes of isotopologues.
For example, both the mean and mean-square amplitudes of vibrations associated with
C–H bonds are greater than those of C–D bonds. The greater effective bulk of molecules
containing the former may be manifested by a steric effect on a rate or equilibrium
constant.;
Origin ID : S06001;
See also
A secondary isotope effect attributed to the different vibrational amplitudes of isotopologues.
For example, both the mean and mean-square amplitudes of vibrations associated with
C–H bonds are greater than those of C–D bonds. The greater effective bulk of molecules
containing the former may be manifested by a steric effect on a rate or equilibrium
constant.
