The high-resolution infrared spectrum of Si2H6: rotation–torsion analysis of the ν5 and ν7 fundamentals, and torsional splittings in the degenerate vibrational states

2004 ◽  
Vol 102 (8) ◽  
pp. 757-764 ◽  
Author(s):  
F. Lattanzi * ◽  
C. Di Lauro ◽  
V.-M. Horneman
Keyword(s):  
High Resolution ◽  
Infrared Spectrum ◽  
Vibrational States

Analysis of the high resolution spectrum of the ν2 and ν5 absorption bands of methyl chloride

1984 ◽  
Vol 62 (3) ◽  
pp. 247-253 ◽  
Author(s):  
M. Morillon-Chapey ◽  
G. Guelachvili ◽  
Per Jensen
Keyword(s):  
Standard Deviation ◽  
High Resolution ◽  
Infrared Spectrum ◽  
Least Squares ◽  
Methyl Chloride ◽  
High Resolution Spectrum ◽  
Vibrational States ◽  
Absorption Bands ◽  
Least Squares Fit

The infrared spectrum of methyl chloride CH3Cl between 1280 and 1650 cm−1 has been recorded at high resolution (0.005 cm−1). The Coriolis interactions between ν2(A1) and ν5(E) and between 2ν3(A1) and ν5 have been investigated through a least squares fit to the transitions observed for CH335Cl. Ten parameters for the three upper vibrational states and three interaction constants have been determined, reproducing the 1200 observed wavenumbers with a standard deviation of 0.002 cm−1. An accidental resonance of the type l(ΔK = 2, Δl = −1) between ν2 and ν5 was found to be present in the spectrum.

High resolution spectra of GeH4v=6 and 7 stretch overtones. The perturbed local mode vibrational states

1993 ◽  
Vol 99 (4) ◽  
pp. 2359-2364 ◽  
Author(s):  
Qing‐Shi Zhu ◽  
A. Campargue ◽  
J. Vetterhöffer ◽  
D. Permogorov ◽  
F. Stoeckel
Keyword(s):  
High Resolution ◽  
Local Mode ◽  
Vibrational States
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