1 Department of Chemistry, Technical University of Denmark2 University of Zaragoza3 Department of Applied Chemistry, Technical University of Denmark
The transition states and the activation energies for the unobserved isomerization reactions between the three possible C2F4S isomers with divalent sulfur, trifluorothioacetyl fluoride 1, tetrafluorothiirane 2, and trifluoroethenesulfenyl fluoride 3, have been determined by ab initio Hartree-Fock, Møller-Plesset second order perturbation calculations and by Gaussian-3 theory. The results show that the unobserved isomerization reactions are feasible. Furthermore, all three isomers should exist as stable species, but the unknown isomer, 3, is considerably less stable than the known isomers, 1 and 2.
Journal of Fluorine Chemistry, 2003, Vol 124, Issue 1, p. 99-104