Millimeter-Wave and High-Resolution Infrared Spectra of Monoisotopic SC80Se: Equilibrium, Ground State, and ν1, mν2, and nν3 Rovibrational Parameters

The infrared spectra of two B type bands, ν2 and 2ν1, of 14N16O2 have been recorded under high resolution. Ground state combination differences from these bands have been combined with combination differences obtained in previous studies and eight pure rotational microwave transitions to yield improved ground state rotational constants. Upper state constants and band centers for the ν2 and 2ν1 bands are also reported. The 2ν1 band contains internal intensity anomalies believed to arise from a weak Coriolis interaction with the much stronger ν1 + ν3 band. Equilibrium rotational constants have been calculated. The equilibrium structure of the molecule is: rc = 1.1945 ± 0.0005 Å and Θc = 133.85 ± 0.10°. For the sake of comparison, effective, substitution, and average structures are also reported.

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Millimeter-Wave and High Resolution Infrared Spectra of D3SiBr

Journal of Molecular Spectroscopy ◽

10.1006/jmsp.1996.7225 ◽

1997 ◽

Vol 182 (1) ◽

pp. 205-214 ◽

Cited By ~ 6

Author(s):

H. Bürger ◽

J. Cosléou ◽

J. Demaison ◽

E.B. Mkadmi ◽

M. Paplewski

Keyword(s):

High Resolution ◽

Millimeter Wave ◽

Infrared Spectra

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High-resolution infrared spectra of HCF3 in the ν6 (500cm−1) and 2ν6 (1000cm−1) regions: rovibrational analysis and accurate determination of the ground state constants C0 and DK0

Journal of Molecular Spectroscopy ◽

10.1016/s0022-2852(03)00133-4 ◽

2003 ◽

Vol 220 (2) ◽

pp. 298-305 ◽

Cited By ~ 8

Author(s):

A. Ceausu-Velcescu ◽

H. Bürger ◽

G. Graner

Keyword(s):

High Resolution ◽

Infrared Spectra ◽

Ground State ◽

Accurate Determination

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Vibration–rotation spectra of nitrous acid, HONO

Canadian Journal of Physics ◽

10.1139/p85-157 ◽

1985 ◽

Vol 63 (7) ◽

pp. 962-965 ◽

Cited By ~ 21

Author(s):

C. M. Deeley ◽

I. M. Mills ◽

L. O. Halonen ◽

J. Kauppinen

Keyword(s):

Fourier Transform ◽

Excited State ◽

Standard Deviation ◽

High Resolution ◽

Infrared Spectra ◽

Ground State ◽

Nitrous Acid ◽

Vibration Rotation ◽

Line Positions ◽

Better Than

High-resolution Fourier-transform infrared spectra have been recorded and analyzed for the ν4 ν5, and ν6 fundamental bands of trans-HONO, and for the ν4 fundamental of cis-HONO. The spectral resolution was better than 0.01 cm−1, and the rotational structure has been analyzed to give improved ground-state and excited-state rotational constants, with a standard deviation of the fit to the observed line positions of around 0.0006 cm−1. Two Coriolis interactions have been analyzed between the ν5 and ν6 bands of trans-HONO.

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HIGH RESOLUTION RAMAN SPECTROSCOPY OF GASES: IX. SPECTRA OF H2, HD, AND D2

Canadian Journal of Physics ◽

10.1139/p57-079 ◽

1957 ◽

Vol 35 (6) ◽

pp. 730-741 ◽

Cited By ~ 403

Author(s):

B. P. Stoicheff

Keyword(s):

Raman Spectroscopy ◽

High Resolution ◽

Power Series ◽

Infrared Spectra ◽

Ground State ◽

Power Series Expansion ◽

Experimental Accuracy ◽

Vibrational Bands ◽

Complete Set ◽

Electronic Ground

The pure rotational lines and the Q branch lines of the 1–0 vibrational bands of H2, HD, and D2 have been photographed with a 21 ft. grating spectrograph. From these spectra, a complete set of constants for the ν = 0 and 1 levels of all three molecules have been determined. When these constants are combined with Herzberg's results of the forbidden infrared spectra of H2 and HD they lead to improved values of the electronic ground state constants of H2 and HD. The leading terms in the Dunham power series expansion of the potential are calculated for H2 and HD and are found to be mutually consistent. The isotopic relations are obeyed within experimental accuracy, and the small constants De, Be, and He, are in agreement with values given by theoretical formulae.

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