Abstract
AbstractAcetamide and thioacetamide react with the superacid solutions HF/MF5 (M = As, Sb) under formation of the corresponding salts [H3CC(OH)NH2]+MF6– and [H3CC(SH)NH2]+MF6– (M = As, Sb), respectively. The reaction of DF/AsF5 with acetamide and thioacetamide lead to the corresponding deuterated salts [H3CC(OD)ND2]+AsF6– and [H3CC(SD)ND2]+AsF6–, respectively. The salts are characterized by vibrational and NMR spectroscopy, and in the case of [H3CC(OH)NH2]+AsF6– and [H3CC(SH)NH2]+AsF6– also by single‐crystal X‐ray analyses. The [H3CC(OH)NH2]+AsF6– (1) salt crystallizes in the triclinic space group P$\bar{1}$ with two formula units per unit cell, and the [H3CC(SH)NH2]+AsF6– (2) salt crystallizes in the monoclinic space group P21/c with four formula units per unit cell. In both crystal structures three‐dimensional networks are observed which are formed by intra‐ and intermolecular N–H···F and O–H···F or S–H···F hydrogen bonds, respectively. For the vibrational analyses, quantum chemically calculated spectra of the cations [H3CC(OH)NH2·3HF]+ and [H3CC(SH)NH2·2HF]+ are considered.
Published Version
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