A preliminary study of the frequencies infrared spectrum of the ϑ4 band of monoisotopic $^{34}SF_6$

Özet

Octahedral formalism based on the notions of molecular symmetry is used in the calculation of the position lines of the ϑ4 band of $^{34}SF_6$ ; we used an experimental spectrum near 650 $cm^{-1}$. This spectrum was analysed using XTDS and SPVIEW software’s, developed in Dijon, France. We have 37 parameters to determined at the six order and for $J_{max}$ = 95, using 1497 data. We have obtained an RMS = 0.598×$10^{-3}$ $cm^{-1}$ .