Vibrations of the NH/sub 3/D/sup +/ ion in NH/sub 4/BG/sub 4/ crystals at low temperatures
Journal Article
·
· J. Phys. Chem.; (United States)
The infrared spectra of the N-D stretching bands of dilute NH/sub 3/D/sup +/ in NH/sub 4/BF/sub 4/ were studied over the temperature range from 7 K to room temperature. The low-temperature spectra show the three bands expected from the site symmetry. On raising the temperature, these bands collapse together and broaden due to the onset of librational motion. Dephasing of the vibrational energy levels is accomplished by interaction among the librational states. This interaction can be determined from the spectral parameters. The librational motion of this and similar salts is governed by a rotational barrier, the height of which is not easily correlated with degree of hydrogen bonding.
- Research Organization:
- Univ. of California, Berkeley
- OSTI ID:
- 6193538
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 91:16; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
AMMONIUM COMPOUNDS
BORON COMPOUNDS
DATA
DEUTERIUM
DEUTERIUM COMPOUNDS
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
INFRARED SPECTRA
ISOTOPE EFFECTS
ISOTOPES
LIGHT NUCLEI
LOW TEMPERATURE
MEDIUM TEMPERATURE
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
SPECTRA
STABLE ISOTOPES
TEMPERATURE DEPENDENCE
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
VIBRATIONAL STATES
400201* -- Chemical & Physicochemical Properties
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
AMMONIUM COMPOUNDS
BORON COMPOUNDS
DATA
DEUTERIUM
DEUTERIUM COMPOUNDS
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
INFRARED SPECTRA
ISOTOPE EFFECTS
ISOTOPES
LIGHT NUCLEI
LOW TEMPERATURE
MEDIUM TEMPERATURE
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
SPECTRA
STABLE ISOTOPES
TEMPERATURE DEPENDENCE
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
VIBRATIONAL STATES