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Updated: Jan 12, 2026

Determination of the Gas-phase Acidities of Oligopeptides
Published on: June 24, 2013
Structural investigation of the protonation states of sulfamic acid
Valentin Bockmair1, Andreas Klöck1, Lukas Stanzel1
1Chair of Inorganic Chemistry, Department of Chemistry, University of Munich (LMU), 81377 Munich, Germany. valentin.bockmair@cup.uni-muenchen.de.
Abstract:
Herein, we report on the O-monoprotonated and double O-hemiprotonated species of sulfamic acid in the binary superacidic systems HF/L (L = BF3, GeF4, AsF5, SbF5). Within the structural studies, differences in the coordination behavior of the weakly coordinating anions MF6- (M = As, Sb) were determined. The colorless salts were characterized by low-temperature vibrational spectroscopy and single-crystal X-ray diffraction. The experimental data are discussed together with quantum chemical calculations in the solid state at the DFT-TZVP/PBE0-(D3) level of theory. Furthermore, the decomposition of sulfamic acid in basic milieu was investigated.
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