Abstract:
Dinitrogen pentoxide solution in trifluoroacetic acid simultaneously has features of both known types of its interaction with acids, viz. with weak and strong acids. It partially reacts with CF3COOH to give the covalent trifluoroacetyl nitrate and nitric acid, however the major part of N2O5 exists in the covalent form in solution to concurrently produce nitronium ions due to the presence of HNO3. Quantum chemical calculations confirm the equilibrium nature of CF3COOHN2O5 interaction.