Ionic clathrate hydrates formed from aqueous solutions of tetra-n-butylammonium bromide in the course of rapid cooling (30 K min−1) to −35 °C have been examined. An earlier unknown metastable hydrate of cubic structure I was obtained from the solutions with concentrations from 3.2 to 4.8 mol%.
- cubic structure I
- ionic clathrate hydrate
- metastable state
- powder X-ray diffraction
- tetra-n-butylammonium bromide