Structure of ND3 solids I and II at high pressure by neutron diffraction

J. Eckert, R. L. Mills, S. K. Satija

Research output: Contribution to journalArticlepeer-review

43 Scopus citations


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 languageEnglish
Pages (from-to)6034-6038
Number of pages5
JournalThe Journal of Chemical Physics
Issue number12
StatePublished - 1984


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