The Protonation of Dithiocarbamic Acid in Superacids HF/MF5: Synthesis and Characterization of H2NC(SH)2+ MF6- (M = As, Sb)
نویسندگان
چکیده
Dithiocarbamic acid reacts in the superacidic media HF/MF5 (M = As, Sb) under formation of the corresponding salts H2NC(SH)2 MF6. The colorless compounds are stable in an inert gas atmosphere up to−20 ◦C. The salts have been characterized by NMR, IR and Raman spectroscopy. Reactions in DF/AsF5 were carried out to obtain D2NC(SD)2 AsF6 in order to confirm the assignments of the observed vibrational modes. Additionally, quantum-chemical calculations of the free cation, [A2NC(SA)2] (A = H, D), and of the [A2NC(SA)2(3HF)] unit on the PBE1BPE/6-311G(3df,3pd) level of theory are discussed.
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