Raman spectra and force constants for the nitric oxide dimer and its isotopic species
Journal Article
·
· J. Phys. Chem.; (United States)
The Raman spectra of the solid nitric oxide dimer (/sup 16/O/sup 14/N/sup 14/N/sup 16/O) and two of its isotopically substituted species (/sup 16/O/sup 15/N/sup 15/N/sup 16/O and /sup 18/O/sup 15/N/sup 15/N/sup 18/O) at 12 K have been recorded and analyzed. The observed isotopic shifts demonstrate that fundamental vibrational frequencies for the normal isotopic species are at 1866 (nu/sub 1/), 1762 (nu/sub 5/), 268 (nu ..nu..), 215 (nu/sub 6/), and 189 (nu/sub 3/) cm/sup -1/. A band at 97 cm/sup -1/ may be due to the sixth vibration (nu/sub 4/). The isotopic frequency shifts observed for the 495-cm/sup -1/ band demonstrate that this is the combination band nu/sub 2/ + nu/sub 6/ and is not a fundamental. The data for the three isotopic forms of cis-N/sub 2/O/sub 2/ made it possible for the first time to calculate a meaningful set of force constants for this molecule. The stretching force constant for the weak N-N bond was calculated to be 0.32 mdyn/Angstrom.
- Research Organization:
- Texas A and M Univ., College Station
- OSTI ID:
- 6804124
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 88:4; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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INFRARED SPECTRA OF THE ISOTOPIC NITROUS OXIDES
Journal Article
·
Mon Feb 28 23:00:00 EST 1994
· Journal of Molecular Spectroscopy; (United States)
·
OSTI ID:7280219
Spectroscopy of high vibrational levels of the N-N stretching mode of N-N- sup 16 O and N-N- sup 18 O
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· Journal of Physical Chemistry; (USA)
·
OSTI ID:5040533
INFRARED SPECTRA OF THE ISOTOPIC NITROUS OXIDES
Journal Article
·
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· Journal of Chemical Physics (U.S.)
·
OSTI ID:4332981
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CHALCOGENIDES
DATA
DIMERS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
INFORMATION
ISOTOPE EFFECTS
ISOTOPES
LIGHT NUCLEI
NITRIC OXIDE
NITROGEN 15
NITROGEN COMPOUNDS
NITROGEN ISOTOPES
NITROGEN OXIDES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
OXIDES
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
RAMAN SPECTRA
SPECTRA
SPECTRAL SHIFT
STABLE ISOTOPES
400202 -- Isotope Effects
Isotope Exchange
& Isotope Separation
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CHALCOGENIDES
DATA
DIMERS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
INFORMATION
ISOTOPE EFFECTS
ISOTOPES
LIGHT NUCLEI
NITRIC OXIDE
NITROGEN 15
NITROGEN COMPOUNDS
NITROGEN ISOTOPES
NITROGEN OXIDES
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
OXIDES
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
RAMAN SPECTRA
SPECTRA
SPECTRAL SHIFT
STABLE ISOTOPES