High-resolution fourier transform spectra and rotational analysis of monoisotopic H3Si79Br in the ν2, ν5 region near 900 cm−1

1984 ◽  
Vol 108 (2) ◽  
pp. 215-229 ◽  
Author(s):  
H. Bürger ◽  
H. Beckers ◽  
J. Kauppinen
1982 ◽  
Vol 60 (9) ◽  
pp. 1288-1302 ◽  
Author(s):  
A. Perrin ◽  
J. -M. Flaud ◽  
C. Camy-Peyret ◽  
P. Luc

The analysis of two parallel absorption bands of NO2, at 13 400 and 13 200 cm−1 respectively, has been performed using high resolution Fourier transform spectra. This paper is an extension of the work performed on the 7390 Å band (13 500 cm−1) in 1977 by Hallin and Merer, and completed in 1980 by Perrin, Camy-Peyret, Flaud, and Luc.The lines involving the Ka = 0, 1, 2, 3, 4 stacks for the 13 400 cm−1 band and Ka = 0, 1, 3, 4 for the 13 200 cm−1 band have been assigned and considerable spin–orbit and/or Coriolis coupling induced transitions have been detected.The 13 400 cm−1 band can be considered as belonging to the [Formula: see text] electronic transition, while the 13 200 cm−1 band might be, as the 7390 Å band (at 13 500 cm−1), a transition within the ground state manifold which barrows its intensity through vibronic coupling from the 13 400 cm−1 band. Tentative vibrational assignments are given.


1985 ◽  
Vol 50 (11) ◽  
pp. 2480-2492 ◽  
Author(s):  
Soňa Přádná ◽  
Dušan Papoušek ◽  
Jyrki Kauppinen ◽  
Sergei P. Belov ◽  
Andrei F. Krupnov ◽  
...  

Fourier transform spectra of the ν2 band of PH3 have been remeasured with 0.0045 cm-1 resolution. Ground state combination differences from these data have been fitted simultaneously with the microwave and submillimeterwave data to determine the ground state spectroscopical parameters of PH3 including the parameters of the Δk = ± 3n interactions. The correlation between the latter parameters has been discussed from the point of view of the existence of two equivalent effective rotational operators which are related by a unitary transformation. The ΔJ = 0, +1, ΔK = 0 (A1 ↔ A2, E ↔ E) rotational transitions in the ν2 and ν4 states have been measured for the first time by using a microwave spectrometer and a radiofrequency spectrometer with acoustic detection.


2000 ◽  
Vol 202 (2) ◽  
pp. 229-248 ◽  
Author(s):  
O.N. Ulenikov ◽  
H. Bürger ◽  
W. Jerzembeck ◽  
G.A. Onopenko ◽  
E.A. Zhabina ◽  
...  

ChemInform ◽  
2010 ◽  
Vol 22 (46) ◽  
pp. no-no
Author(s):  
O. N. ULENIKOV ◽  
A. B. MALIKOVA ◽  
G. A. SHEVCHENKO ◽  
G. GUELACHVILI ◽  
M. MORILLON-CHAPEY

1993 ◽  
Vol 157 (1) ◽  
pp. 141-160 ◽  
Author(s):  
O.N. Ulenikov ◽  
A.E. Cheglokov ◽  
G.A. Shevchenko ◽  
M. Winnewisser ◽  
B.P. Winnewisser

1994 ◽  
Vol 72 (11-12) ◽  
pp. 1241-1250 ◽  
Author(s):  
Q. Kou ◽  
G. Guelachvili ◽  
M. Abbouti Temsamani ◽  
M. Herman

We have recorded the Fourier transform absorption spectrum of acetylene, C2H2, at high resolution, around 6500 cm−1. The positions of the strongest rovibrational lines are measured with respect to the rovibrational lines in 3-0 of CO. They provide secondary calibration standards in that range with an accuracy of 3 × 10−4 cm−1. The rotational analysis of the data gives evidence of five vibrational levels of [Formula: see text] symmetry, in addition to the bright combination level (1010000). This is demonstrated to strictly fit the predicted anharmonic resonance pattern in that region, which permits the vibrational assignment of those extra transitions. Study of the relative intensities of the reported vibrational transitions suggests the need to include new quartic anharmonic couplings. This is supported by the rovibrational analysis of the cold bands around 8500 cm−1, involving the (1110000) bright level, which is also presented.


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