Abstract
A preliminary investigation of two solid phases of deuterated ammonia has been performed by single-crystal neutron diffraction. At 5.1 kbar and 240 K, the newly discovered solid II was found to consist of orientationally disordered molecules in a hexagonal close-packed lattice with space ground P 6 3/mmc and lattice constants a = 3.588(2) Å and c = 5.870(2) Å. The primitive cubic structure (space group P 213) of solid I was confirmed up to a pressure of 5.1 kbar at 215 K, where the lattice constant is 5.035(2) Å.
Original language | English |
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Pages (from-to) | 6034-6038 |
Number of pages | 5 |
Journal | The Journal of Chemical Physics |
Volume | 81 |
Issue number | 12 |
DOIs | |
State | Published - 1984 |