Conformationally dependent oxygen isotope effects on the infrared spectra of 2,2-dioxo-1,3,2-dioxathianes
Abstract
The isotope shift caused by 17O or 18O on the frequency of the symmetric and antisymmetric SO2 stretching modes of 2,2-dioxo-1,3,2-dioxathianes (six-membered cyclic sulphates) is strongly dependent on whether the heavy oxygen isotope is located in an axial or equatorial site.