Photochemistry of hydrogen sulfide-fluorine complexes in solid argon: infrared spectra of (HSF)(HF) complexes

Abstract

Codeposition of H 2 S and F 2 in excess argon on a cold window at 12±1 K gave sulfur fluorides and evidence for Lewis acid-base precursor complexes. Photolysis of these complexes with 590-1000-nm light formed several new products. Ab initio SCF calculations with the standard double-ζ plus polarization function (DZP) basis set were performed to support the identification of new product species. The HSF--HF and HFS--HF complexes exhibited H-F stretching modes at 3850 and 3724 cm -1 and S-F stretching modes at 759 and 816 cm -1 , respectively