ProtonatedO,S-Dimethyl Dithiocarbonate − Synthesis, Spectroscopic Characterization and the Crystal Structure of (CH3O)(CH3S)CSH+SbF6−

Abstract

Dithiocarbonic acid O,S-dimethyl ester reacts with the super acidic system HF/MF5 (M = As, Sb) to form (MeO)(MeS)CSX+MF6− (M = As, Sb; X = H, D). (MeO)(MeS)CSH+SbF6− crystallizes in the monoclinic space group P21/n (No. 14) with a = 8.634(2) Å, b = 9.521(3)Å, c = 12.509(4) Å, β = 97.39 (2)° and 4 formula units per cell. The reaction of O,S-dimethyl dithiocarbonate with the super acidic systems XF/MF5 (X = H, D; M = As, Sb) is discussed with regard to the formation of the salts, and Raman, IR, 1H NMR, and 13C NMR spectra of (MeO)(MeS)CSX+MF6− (M = As, Sb; X = H, D) are reported.