Photo-assisted fragmentation spectroscopy of triatomic hydrogen

Susan F. Selgren; Gregory I. Gellene

doi:10.1016/0009-2614(88)87485-2

Photo-assisted fragmentation spectroscopy of triatomic hydrogen

Susan F. Selgren, Gregory I. Gellene

Chemistry and Biochemistry

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The R₀(0) line of the 3s²A′₁←2p²A″₂ transition of the H₃ radical has been observed in absorption by the new technique of photo-assisted fragmentation spectroscopy. A fast beam of metastable H₃ radicals produced by H₃ ⁺/K electron transfer is interacted with visible light from a dye laser. Optical absorption is detected by observing a decrease in parent peak intensity in the H₃ ⁺ neutralization-reionization mass spectrum, resulting from dissociation of the neutral molecule. Absorption line widths are observed to be instrumentally limited (≈ 0.05 cm^-1) as the upper state of the transition is spectroscopically long lived. Application of the technique to various second-row hypervalent hydride radicals is discussed.

Original language	English
Pages (from-to)	485-489
Number of pages	5
Journal	Chemical Physics Letters
Volume	146
Issue number	6
DOIs	https://doi.org/10.1016/0009-2614(88)87485-2
State	Published - May 20 1988

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@article{dd2dd615640143c190d0a2fa080b892d,

title = "Photo-assisted fragmentation spectroscopy of triatomic hydrogen",

abstract = "The R0(0) line of the 3s2A′1←2p2A″2 transition of the H3 radical has been observed in absorption by the new technique of photo-assisted fragmentation spectroscopy. A fast beam of metastable H3 radicals produced by H3 +/K electron transfer is interacted with visible light from a dye laser. Optical absorption is detected by observing a decrease in parent peak intensity in the H3 + neutralization-reionization mass spectrum, resulting from dissociation of the neutral molecule. Absorption line widths are observed to be instrumentally limited (≈ 0.05 cm-1) as the upper state of the transition is spectroscopically long lived. Application of the technique to various second-row hypervalent hydride radicals is discussed.",

author = "Selgren, {Susan F.} and Gellene, {Gregory I.}",

note = "Funding Information: We are grateful to Finnigan MAT for partial sup port of this research through the American Society for Mass Spectrometry research award program and to the Notre Dame Jesse H. Jones Capital Equipment Fund for providing for the wavemeter.",

year = "1988",

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doi = "10.1016/0009-2614(88)87485-2",

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T1 - Photo-assisted fragmentation spectroscopy of triatomic hydrogen

AU - Selgren, Susan F.

AU - Gellene, Gregory I.

N1 - Funding Information: We are grateful to Finnigan MAT for partial sup port of this research through the American Society for Mass Spectrometry research award program and to the Notre Dame Jesse H. Jones Capital Equipment Fund for providing for the wavemeter.

PY - 1988/5/20

Y1 - 1988/5/20

N2 - The R0(0) line of the 3s2A′1←2p2A″2 transition of the H3 radical has been observed in absorption by the new technique of photo-assisted fragmentation spectroscopy. A fast beam of metastable H3 radicals produced by H3 +/K electron transfer is interacted with visible light from a dye laser. Optical absorption is detected by observing a decrease in parent peak intensity in the H3 + neutralization-reionization mass spectrum, resulting from dissociation of the neutral molecule. Absorption line widths are observed to be instrumentally limited (≈ 0.05 cm-1) as the upper state of the transition is spectroscopically long lived. Application of the technique to various second-row hypervalent hydride radicals is discussed.

AB - The R0(0) line of the 3s2A′1←2p2A″2 transition of the H3 radical has been observed in absorption by the new technique of photo-assisted fragmentation spectroscopy. A fast beam of metastable H3 radicals produced by H3 +/K electron transfer is interacted with visible light from a dye laser. Optical absorption is detected by observing a decrease in parent peak intensity in the H3 + neutralization-reionization mass spectrum, resulting from dissociation of the neutral molecule. Absorption line widths are observed to be instrumentally limited (≈ 0.05 cm-1) as the upper state of the transition is spectroscopically long lived. Application of the technique to various second-row hypervalent hydride radicals is discussed.

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U2 - 10.1016/0009-2614(88)87485-2

DO - 10.1016/0009-2614(88)87485-2

M3 - Article

AN - SCOPUS:0011649136

VL - 146

SP - 485

EP - 489

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 6

ER -

Photo-assisted fragmentation spectroscopy of triatomic hydrogen

Abstract

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