The collisional deactivation of highly vibrationally excited pyrazine by a bath of carbon dioxide: Excitation of the infrared inactive (1000), (0200), and (0220) bath vibrational modes

1998 ◽  
Vol 108 (7) ◽  
pp. 2744-2755 ◽  
Author(s):  
Chris A. Michaels ◽  
Amy S. Mullin ◽  
Jeunghee Park ◽  
James Z. Chou ◽  
George W. Flynn
Keyword(s):  
Carbon Dioxide ◽  
Vibrational Modes ◽  
Vibrationally Excited

scholarly journals Microwave Spectra of Furazan. III. Rotation Spectra of Vibrationally Excited States

1990 ◽  
Vol 45 (9-10) ◽  
pp. 1117-1130
Author(s):  
Otto L. Stiefvater
Keyword(s):  
Excited States ◽  
Heterocyclic Compound ◽  
Microwave Spectroscopy ◽  
Vibrational Modes ◽  
Vibrationally Excited ◽  
Rotational Constants ◽  
Rotational Spectra ◽  
Microwave Spectra

Abstract The pure rotational spectra of molecules in 21 vibrationally excited states of the heterocyclic compound furazan (C2H2N2O) have been detected and studied by DRM microwave spectroscopy. Rotational parameters are reported for the 12 fundamental levels below 1500 cm-1 , and the contri-butions from 10 vibrational modes to the effective rotational constants and to the inertia defect of furazan are calculated.

scholarly journals Picosecond Anti-Stokes Raman Excitation Profiles as a Method for Investigating Vibrationally Excited Transients

1999 ◽  
Vol 19 (1-4) ◽  
pp. 335-341 ◽  
Author(s):  
Hiromi Okamoto ◽  
Takakazu Nakabayashi ◽  
Mitsuo Tasumi
Keyword(s):  
Vibrational Energy ◽  
Vibrational Modes ◽  
Vibrational States ◽  
Vibrationally Excited ◽  
Quantum Numbers ◽  
Trans Stilbene ◽  
Raman Process ◽  
Vibrationally Hot Molecules ◽  
Raman Excitation Profiles ◽  
Anti Stokes

A method for estimating vibrational quantum numbers of vibrationally excited transients in solution is proposed. In this method, we calculate anti-Stokes Raman excitation profiles (REPs) which are characteristic of the initial vibrational states involved in the Raman process, and compare them with observed anti-Stokes intensities. We have applied this method to vibrationally hot molecules of canthaxanthin in the So state and those of trans-stilbene in the S1 state. For canthaxanthin, it has been found that the vibrationally excited transients are for the most part on the ν=1 level of the C═C stretching mode, and that excess vibrational energy is statistically distributed among all intramolecular vibrational modes. As for S1 stilbene, vibrational transients are shown to be mostly on the ν=1 level for two vibrational modes examined, while the excess vibrational energy is probably localised on the olefinic C═C stretching mode.

IR spectrum of highly vibrationally excited osmium tetraoxide in the region of strong nonlinear interaction of vibrational modes

1990 ◽  
Vol 94 (4) ◽  
pp. 1294-1297 ◽  
Author(s):  
O. V. Boyarkin ◽  
S. I. Ionov ◽  
A. A. Stuchebrukhov ◽  
V. N. Bagratashvili ◽  
M. S. Dzhidzhoev
Keyword(s):  
Ir Spectrum ◽  
Nonlinear Interaction ◽  
Vibrational Modes ◽  
Vibrationally Excited ◽  
Osmium Tetraoxide

Deactivation of Vibrationally Excited Carbon Dioxide (001) by Collisions with Carbon Monoxide

1971 ◽  
Vol 54 (3) ◽  
pp. 1196-1205 ◽  
Author(s):  
W. A. Rosser ◽  
R. D. Sharma ◽  
E. T. Gerry
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Vibrationally Excited

Etude à basse température dans l'infrarouge proche du dimère (NO)2

1984 ◽  
Vol 62 (4) ◽  
pp. 322-329 ◽  
Author(s):  
V. Menoux ◽  
R. Le Doucen ◽  
C. Haeusler ◽  
J. C. Deroche
Keyword(s):  
Excited State ◽  
Gas Phase ◽  
Ground State ◽  
Near Infrared ◽  
Heat Of Formation ◽  
Wave Number ◽  
Vibrational Modes ◽  
Vibrationally Excited ◽  
Rotational Constants ◽  
Absorption Intensity

The spectrum of the dimer (NO)2 in the gas phase has been studied in the near infrared at temperatures between 118 and 138 K. More specifically, the measure of absorption intensity of the ν4 and ν1 + ν4 bands has yielded the heat of formation of the dimer, −2.25 kcal/mol at 128 K, and revealed the influence of the low vibrational modes on this measure. The observation of the ν4 – ν6, difference band has yielded the wave number value of the ν6, fundamental band, forbidden in the infrared. The rotational constants of the vibrationally excited state were found to be larger than the ground state rotational constants, this result being very unusual.

Vibrationally excited carbon dioxide produced by infrared multiphoton pyrolysis

1984 ◽  
Vol 88 (13) ◽  
pp. 2817-2821 ◽  
Author(s):  
Mark R. Colberg ◽  
Richard J. Watkins ◽  
Ole D. Krogh
Keyword(s):  
Carbon Dioxide ◽  
Vibrationally Excited
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