The orientation of NH3D+ in ammonium nickel–sulfate hydrate: A new type of crystalline phase
- 15 March 1986
- journal article
- letter
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 84 (6) , 3577-3579
- https://doi.org/10.1063/1.450191
Abstract
We report the discovery of a new type of phase. The N–D bonds in dilute NH3D+ in the title compound are oriented to a maximum extent at 29 K, but this orientation decreases at both higher and lower temperatures. We attribute the decrease as the temperature is lowered to an increase in the tunneling of the NH3D+ ions.Keywords
This publication has 11 references indexed in Scilit:
- Does Coupling to a Condensed Phase Increase or Decrease Tunneling?Physical Review Letters, 1985
- The dynamics of rotational isomerism in crystals as studied by vibrational spectroscopyJournal of Molecular Structure, 1985
- Orientational ordering in solid parahydrogen and orthodeuteriumThe Journal of Chemical Physics, 1984
- A correlated variational wave function for the orientational ground state of solid methaneThe Journal of Chemical Physics, 1984
- Phase transitions induced by proton tunneling in hydrogen-bonded crystals. Ground-state theoryPhysical Review B, 1984
- Orientational ordering: Computer studies of the quadrupolar "glass"Physical Review B, 1983
- Ammonium ion rotation in ammonium perchlorate as studied by infrared spectroscopyThe Journal of Chemical Physics, 1983
- An infrared study of the dynamics of weakly bound water in crystalline hydratesThe Journal of Chemical Physics, 1982
- Infrared spectra of the ammonium ion in crystalsJournal of Molecular Structure, 1978
- The crystal structure of Tutton's salts. II. Magnesium ammonium sulfate hexahydrate and nickel ammonium sulfate hexahydrateActa Crystallographica, 1964