Fluorescence of excited photofragments correlated with electronic states of multiply charged CO produced through photoexcitation of CO in the 28–100 eV region

Wu, C. Y. Robert; Hung, Tom; Chen, F.Z; Judge, D. L.

doi:10.1016/s0368-2048(98)00473-3

Cited by 3 publications

(1 citation statement)

References 38 publications

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“…The EUV light defines the spectral region from soft X-rays to 106 nm, the LiF window cutoff (Samson 1980). Therefore, absorption of EUV photons involves excitation of the inner valence shell electrons, the ionization continua, the many electron states, and the core electrons resulting in the production of single and multiple ionization, neutral and ion fragments which can be either in the ground electronic state or excited electronic states (e.g., Wuilleumier et al 1992, Wu et al 1999. It is thus expected that many chemical reactions will take place following EUV photon absorption.…”

Section: Introductionmentioning

confidence: 99%

Extreme Ultraviolet Photon-Induced Chemical Reactions in the C2H2–H2O Mixed Ices at 10 K

Judge

Cheng

et al. 2002

Icarus

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Section: Introductionmentioning

confidence: 99%

Extreme Ultraviolet Photon-Induced Chemical Reactions in the C2H2–H2O Mixed Ices at 10 K

Judge

Cheng

et al. 2002

Icarus

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Vibrational branching ratios in photoionization of CO and N2

Rathbone

Rao

Poliakoff

et al. 2004

The Journal of Chemical Physics

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We report results of experimental and theoretical studies of the vibrational branching ratios for CO 4 Ϫ1 photoionization from 20 to 185 eV. Comparison with results for the 2 u Ϫ1 channel of the isoelectronic N 2 molecule shows the branching ratios for these two systems to be qualitatively different due to the underlying scattering dynamics: CO has a shape resonance at low energy but lacks a Cooper minimum at higher energies whereas the situation is reversed for N 2 .

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Fluorescence excitation spectra of the bΠu1, b′Σu+1, cnΠu1, and cn′Σu+1 states of N2 in the 80–100nm region

Fung

Chang

et al. 2007

The Journal of Chemical Physics

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Fluorescence excitation spectra produced through photoexcitation of N(2) using synchrotron radiation in the spectral region between 80 and 100 nm have been studied. Two broadband detectors were employed to simultaneously monitor fluorescence in the 115-320 nm and 300-700 nm regions, respectively. The peaks in the vacuum ultraviolet fluorescence excitation spectra are found to correspond to excitation of absorption transitions from the ground electronic state to the b (1)Pi(u), b(') (1)Sigma(u) (+), c(n) (1)Pi(u) (with n=4-8), c(n) (') (1)Sigma(u) (+) (with n=5-9), and c(4) (')(v('))(1)Sigma(u) (+) (with v(')=0-8) states of N(2). The relative fluorescence production cross sections for the observed peaks are determined. No fluorescence has been produced through excitation of the most dominating absorption features of the b-X transition except for the (1,0), (5,0), (6,0), and (7,0) bands, in excellent agreement with recent lifetime measurements and theoretical calculations. Fluorescence peaks, which correlate with the long vibrational progressions of the c(4) (') (1)Sigma(u) (+) (with v(')=0-8) and the b(') (1)Sigma(u) (+) (with v(') up to 19), have been observed. The present results provide important information for further unraveling of complicated and intriguing interactions among the excited electronic states of N(2). Furthermore, solar photon excitation of N(2) leading to the production of c(4) (')(0) may provide useful data required for evaluating and analyzing dayglow models relevant to the interpretation of c(4) (')(0) in the atmospheres of Earth, Jupiter, Saturn, Titan, and Triton.

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Fluorescence of excited photofragments correlated with electronic states of multiply charged CO produced through photoexcitation of CO in the 28–100 eV region

Cited by 3 publications

References 38 publications

Extreme Ultraviolet Photon-Induced Chemical Reactions in the C2H2–H2O Mixed Ices at 10 K

Extreme Ultraviolet Photon-Induced Chemical Reactions in the C2H2–H2O Mixed Ices at 10 K

Vibrational branching ratios in photoionization of CO and N2

Fluorescence excitation spectra of the bΠu1, b′Σu+1, cnΠu1, and cn′Σu+1 states of N2 in the 80–100nm region

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