Rydberg State Spectroscopy Of The Sh Radical

Lange, C.A. de

doi:10.1007/0-306-46938-3_16

Cited by 2 publications

(3 citation statements)

References 41 publications

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“…A well-studied class of molecules with large rotational constants are the diatomic hydride radicals such as OH, 11 NH, 12,13 and SH. 14,15 In this work, rotationally resolved photoelectron spectroscopy is carried out on hot CO photofragments produced in the photodissociation of OCS. The rotational constant of CO ϩ in the X 2 ⌺ ϩ ionic ground state is only 1.9677 cm Ϫ1 .…”

Section: Introductionmentioning

confidence: 99%

“…It is well known that in laser photoelectron spectroscopy an abundance of neutral states located above the lowest ionic limit and belonging to Rydberg series converging upon higher ionic limits, often termed superexcited states, can play a key role in photoionization. 15,31,32 More often than not there is a competition between direct ionization and excitation of such superexcited states, which can subsequently undergo a variety of decay processes. These decay processes may include autoionization, ͑pre͒dissociation, or absorption of additional photons.…”

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Rotationally resolved photoionization dynamics of hot CO fragmented from OCS

Rijs

Backus

Lange

et al. 2002

The Journal of Chemical Physics

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The photoionization dynamics of rotationally hot CO, photodissociated from OCS, have been studied using laser photoelectron spectroscopy via the intermediate B 1 ⌺ ϩ Rydberg state leading to the X 2 ⌺ ϩ of the ion. The photodissociation of OCS near 230 nm produces rotationally hot, but vibrationally cold CO (X 1 ⌺ ϩ ,NЉ,vЉϭ0,1) fragments along with S ( 1 D) atoms. These high rotational levels show photoelectron spectra with a very strong ⌬Nϭ0 transition and weaker ⌬N ϭϮ1, Ϯ2, and Ϯ3 transitions. Agreement between measured and calculated spectra is good and suggests that there is significant angular momentum coupling in the photoelectron orbital. In the ionization step not only ⌬vϭ0, but also off-diagonal, non-Franck-Condon (⌬v 0) transitions are observed. The intensities of these transitions vary strongly within the region studied and can be explained by the excitation of superexcited Rydberg states with an A 2 ⌸ core.

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Rotationally resolved photoionization dynamics of hot CO fragmented from OCS

Rijs

Backus

Lange

et al. 2002

The Journal of Chemical Physics

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“…Representative cases are stable molecules such as diatomic hydrogen [22][23][24][25] and its isotopomer D 2 , 26,27 and several short-lived diatomic hydride radicals such as OH, 28 NH, 29,30 and SH. 31,32 The present paper is concerned with rotationally resolved laser photoelectron spectroscopy of hot N 2 photofragments using the aЉ 1 ͚ g ϩ intermediate state. The rotational constant of N 2 ϩ in the X 2 ͚ g ϩ ionic ground state is only 1.922 321 cm Ϫ1 .…”

Section: Introductionmentioning

confidence: 99%

Rotationally resolved photoelectron spectroscopy of hot N2 formed in the photofragmentation of N2O

Rijs

Backus

Lange

et al. 2001

The Journal of Chemical Physics

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Articles you may be interested inThe photoionization dynamics of rotationally hot molecular nitrogen are studied employing resonance enhanced multiphoton ionization in combination with photoelectron spectroscopy. Photodissociation of N 2 O at ϳ203 nm results in highly rotationally excited N 2 fragments in X 1 ͚ g ϩ (NЉ,vЉϭ0,1) states and O atoms in the excited 1 D 2 state. Photoelectron detection of the rotationally hot N 2 states is performed by a two-photon excitation to the lowest aЉ 1 ͚ g ϩ Rydberg state followed by one-photon ionization. The large number of observed rotational levels, from NЈ ϭ49 up to NЈϭ94, results in improved rotational parameters for aЉ 1 ͚ g ϩ (vЈϭ0). In addition, experimental and theoretical rotationally resolved photoelectron spectra of the aЉ 1 ͚ g ϩ (vЈ ϭ0,1;NЈ) state are presented. In these spectra only ⌬NϭN ϩ ϪNЈϭeven transitions are observed, with a dominant ⌬Nϭ0 peak and rather weak ⌬NϭϮ2 peaks. The one-photon ionization is dominated by ejection of electrons in p and f partial waves. The agreement between experimental and calculated spectra is excellent.

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Rydberg State Spectroscopy Of The Sh Radical

Cited by 2 publications

References 41 publications

Rotationally resolved photoionization dynamics of hot CO fragmented from OCS

Rotationally resolved photoionization dynamics of hot CO fragmented from OCS

Rotationally resolved photoelectron spectroscopy of hot N2 formed in the photofragmentation of N2O

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