Journal ArticleDOI
Laser‐induced fluorescence of CN(X2 Σ+) produced by photolysis of C2N2 at 160 nm
TLDR
In this paper, laser-induced fluorescence measurements of the initial product state distributions of CN(X2 Sigma +) produced during the photolysis of C2N2 at a wavelength of 160 nm.Abstract:
The paper reports laser-induced fluorescence measurements of the initial product state distributions of CN(X2 Sigma +) produced during the photolysis of C2N2 at a wavelength of 160 nm. The parent molecules were photodissociated by an argon flash lamp, and saturated solutions of BBD in p-dioxane were used as a laser dye to produce radiation that excited CN radicals in the (upsilon-double-prime, N-prime) vibrational-rotational sublevels of the X state to the B-state sublevels. Spectral-line identification is discussed along with the observed rotational, electronic, and vibrational energy partitionings. The effect of added buffer gas (N2 or He) on the observed product state distributions is examined in order to monitor collisional energy transfer from CN(A2 Pi, upsilon = 0) to CN(X2 Sigma +, upsilon-double-prime = 4). It is found that both buffer gases produce population inversion between the upsilon-double-prime = 4 and upsilon-double-prime = 3 levels of the X state.read more
Citations
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Journal ArticleDOI
A chemical model for the atmosphere of hot Jupiters
Olivia Venot,Eric Hébrard,Marcelino Agúndez,Michel Dobrijevic,Franck Selsis,Franck Hersant,Nicolas Iro,Nicolas Iro,Roda Bounaceur +8 more
TL;DR: In this paper, a chemical network was developed for the temperature and pressure range relevant to hot Jupiters atmospheres, and the authors compared the predictions obtained from this scheme with equilibrium calculations, with different schemes available in the literature that contain N-bearing species and with previously published photochemical models.
Journal ArticleDOI
Radiative decay and radiationless deactivation in selectively excited CN
TL;DR: In this article, the decay of many vibrational levels (v=3-9) of the A 2Π state of the CN radical were investigated using a tunable dye laser and the time and wavelength resolved fluorescence of the selectively excited levels was recorded as a function of the Ar carrier gas pressure.
Journal ArticleDOI
193 nm photodissociation of H2S: The SH internal energy distribution
W. G. Hawkins,Paul L. Houston +1 more
TL;DR: In this paper, the dynamics of H2S and D2S photodissociation at 193 nm have been investigated using an ArF excimer laser to photolyze the parent compound and a tunable, doubled dye laser to probe the energy content of the SH or DH radicals via the laser induced fluorescence technique.
Journal ArticleDOI
Rotational distributions from photodissociation. II. Results for ICN+hν→l+CN(X 2Σ+)
TL;DR: The results of the collinear approximation for vibrational distributions in photodissociation of linear molecules are shown to be considerably modified by including rotational degrees of freedom, especially at high photon energies.
Journal ArticleDOI
Laser measurements of the effects of vibrational energy on the reactions of CN
TL;DR: In this paper, the rate constants for the reaction of each of these vibrational levels with H2, O2, CO, CO2, N2, HCN, C2N2, and CH4 have been determined.
References
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Journal ArticleDOI
Angular Momentum Distribution and Emission Spectrum of OH (2Σ+) in the Photodissociation of H2O
TL;DR: In this paper, the rotational and vibrational excitation of the product of water vapor absorbs light of wavelength less than 1350 A, and an electronically excited fragment may be produced.
Journal ArticleDOI
Crossed-beam reactions of barium with hydrogen halides. Measurement of internal state distributions by laser-induced fluorescence
TL;DR: In this article, the use of laser-induced fluorescence as a molecular beam detector for the measurement of internal state distributions of reaction products is presented and applied to the reactions of barium with the hydrogen halides.
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