Microwave Spectrum and Structure of Sulfuryl Fluoride

Abstract

The microwave spectrum of sulfuryl fluoride, SO₂F₂, has been reinvestigated. The spectra of the S³² and S³⁴ species in natural abundance have been analyzed, and the structure has been determined with the aid of the S³⁴ isotope shift. The correction for zero‐point vibration was shown to be small. The structural parameters are: r_SO=1.405±0.003 A, r_SF=1.530±0.003 A, 4(A₁) and ν₅(A₂). From an analysis of this interaction the frequency of the hitherto unobserved ν₄(A₁) fundamental was found to be 388±15 cm^—1.