Details
| Original language | English |
|---|---|
| Pages (from-to) | 106-112 |
| Number of pages | 7 |
| Journal | Journal of molecular spectroscopy |
| Volume | 184 |
| Issue number | 1 |
| Publication status | Published - Jul 1997 |
Abstract
Nuclear quadrupole hyperfine structure in the rotational spectrum of Ar-N2O has been resolved in the 7-18 GHz region using a Fourier transform microwave spectrometer. Analysis of the hyperfine lines enables not only the determination of the rotational and centrifugal distortion constants to greater precision than previous studies, but also provides values for the nuclear quadrupole coupling constants of each 14N nucleus. The coupling constants for Ar-N2O, when compared to those for free N2O, show that the electric field gradient at the terminal nitrogen nucleus in the N2O subunit is not affected by the presence of Ar, whereas that at the central nitrogen nucleus is affected slightly. This result, in contrast to recent findings in HCCH-N2O, supports the usual practice of extracting geometrical information for a van der Waals molecule from the nuclear quadrupole coupling tensor(s) of the complex.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Chemistry(all)
- Spectroscopy
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: Journal of molecular spectroscopy, Vol. 184, No. 1, 07.1997, p. 106-112.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Nuclear Quadrupole Hyperfine Structure in the Microwave Spectrum of Ar-N2O
AU - Leung, Helen O.
AU - Gangwani, Deepa
AU - Grabow, Jens Uwe
N1 - Funding Information: Acknowledgment is made to the donors of the Petroleum Research Fund, administered by the American Chemical Society, a Cottrell College Science Award of Research Corporation, a Research Planning Grant of the National Science Foundation (CHE-9396236), and the Camille and Henry Dreyfus Faculty Start-up Grant Program for Undergraduate Institutions for support of this research.
PY - 1997/7
Y1 - 1997/7
N2 - Nuclear quadrupole hyperfine structure in the rotational spectrum of Ar-N2O has been resolved in the 7-18 GHz region using a Fourier transform microwave spectrometer. Analysis of the hyperfine lines enables not only the determination of the rotational and centrifugal distortion constants to greater precision than previous studies, but also provides values for the nuclear quadrupole coupling constants of each 14N nucleus. The coupling constants for Ar-N2O, when compared to those for free N2O, show that the electric field gradient at the terminal nitrogen nucleus in the N2O subunit is not affected by the presence of Ar, whereas that at the central nitrogen nucleus is affected slightly. This result, in contrast to recent findings in HCCH-N2O, supports the usual practice of extracting geometrical information for a van der Waals molecule from the nuclear quadrupole coupling tensor(s) of the complex.
AB - Nuclear quadrupole hyperfine structure in the rotational spectrum of Ar-N2O has been resolved in the 7-18 GHz region using a Fourier transform microwave spectrometer. Analysis of the hyperfine lines enables not only the determination of the rotational and centrifugal distortion constants to greater precision than previous studies, but also provides values for the nuclear quadrupole coupling constants of each 14N nucleus. The coupling constants for Ar-N2O, when compared to those for free N2O, show that the electric field gradient at the terminal nitrogen nucleus in the N2O subunit is not affected by the presence of Ar, whereas that at the central nitrogen nucleus is affected slightly. This result, in contrast to recent findings in HCCH-N2O, supports the usual practice of extracting geometrical information for a van der Waals molecule from the nuclear quadrupole coupling tensor(s) of the complex.
UR - http://www.scopus.com/inward/record.url?scp=0001417596&partnerID=8YFLogxK
U2 - 10.1006/jmsp.1997.7293
DO - 10.1006/jmsp.1997.7293
M3 - Article
AN - SCOPUS:0001417596
VL - 184
SP - 106
EP - 112
JO - Journal of molecular spectroscopy
JF - Journal of molecular spectroscopy
SN - 0022-2852
IS - 1
ER -