D. Mootz, M. Schilling
Sep 1, 1992
Citations
0
Influential Citations
25
Citations
Journal
Journal of the American Chemical Society
Abstract
Trifluoroacetic acid has been found from DTA, DSC, and temperature-dependent X-ray powder diffraction to form, besides other stable and metastable hydrates, both an undeuterated (reinvestigation) and perdeuterated stable tetrahydrate. For the undeuterated phase (mp-12 o C) an ionic structure, (H 5 O 2 )[(CF 3 COO) 2 H].6H 2 O, has been confirmed by X-ray analysis. In contrast, the perdeuterated tetrahydrate (mp-15 o C) has been found to be molecular, i.e. with CF 3 COOD.4D 2 O not only as the empirical but also as the pertinent structural formula