Urey-Bradley potential constants of sulphur compounds: SF5Cl

Abstract

Using previously published infra-red and Raman data, the Urey-Bradley force constants of SF₅Cl have been determined. The analysis has been carried within Wilson's G-F matrix method and the constants evaluated by the use of a computer programme (MV-E1D) which refines the differences of the experimental and calculated frequencies in the least-squares sense. To enhance our statistical analysis, we have also included the molecular vibrations of SF₆ in our least-squares fit. Finally, assuming the transferability of the Urey-Bradley force constants, the normal coordinates as well as the potential energy distribution of both SF₅Cl and SF₆ have been determined.