Darstellung und spektroskopische Charakterisierung der Difluoramino-fluoriminium-Hexafluorometallate F2NC(F)NX2+MF6– (X = H,D; M = As,Sb) |
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Authors: | Rolf Minkwitz Stefan Reinemann Ralf Ludwig |
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Abstract: | Preparation and Spectroscopic Characterization of the Difluoroaminofluoro-iminium-hexafluorometallates F2NC(F)NX2+MF6– (X = H, D; M = As, Sb) Difluorocyanamin, F2NCN, does not react with the superacids XF/MF5 (X = H, D; M = As, Sb) under formation of protonated nitrilium salts. At –78 °C iminium salts of the general form F2NC(F)NX2+MF6– are observed, which are characterized by vibrational and nmr spectroscopy. The structure and vibrational frequencies were computed ab initio at the Hartree-Fock (HF/6-31 + G*) and correlated Møller-Plesset (MP2/6-31 + G*) levels of theory. |
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Keywords: | Difluorocyanamin iminium salts vibrational spectra nmr spectra ab inito calculation |
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