| | 1 | Author
| Dietrich Mootz, D. Agm Ar Boenigk | Requires cookie* | | | Title
| Fluoride und Fluorosäuren, VII [1] Kristallstrukturen von Säurehydraten und Oxoniumsalzen, XXII [2] Hydratbildung der Trifluoressigsäure sowie Strukturen eines Monohydrats und eines Tetrahydrats [3] Fluorides and Fluoro Acids, VII [1] Crystal Structures of Acid H ydrates and Oxonium Salts, XXII [2] H ydrate Form ation of Trifluoroacetic Acid and Structures of a M onohydrate and a Tetrahydrate [3]  | | | | Abstract
| The liquidus and solidus lines of the quasi binary system CF3C O O H —H20 were determined by low temperature difference thermal analysis and the resulting phase relations controlled by X-ray powder diffraction. Formation of a monohydrate and a tetrahydrate, melting congruently at —43 and —16 °C, respectively, is confirmed. In addition a metastable form of the monohydrate and a low temperature form of the tetrahydrate, stable below —47 °C, are indicated. The crystal struc tures of the stable high temperature forms were determined. From these the monohydrate (tetra gonal, space group I42d, Z = 16) is a true acid hydrate, C F ,C 0 0 H H 20 . and the tetrahydrate (triclinic, P I, Z -2) a hydrated oxonium salt, (H 50 2) + [H(CF3COO)2]~ • 6 H:0 . | | | |
Reference
| Z. Naturforsch. 39b, 298—3 (1984); eingegangen am 8. November 1983 | | | |
Published
| 1984 | | | |
Keywords
| Trifluoroacetic Acid, Hydrates, Phase Diagram, Crystal Structure, Hydrogen Bonding | | | |
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| default:Reihe_B/39/ZNB-1984-39b-0298.pdf | | | | Identifier
| ZNB-1984-39b-0298 | | | | Volume
| 39 | |
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