100% site-selective fragmentation in core-hole-photoexcited methanol by anion-yield spectroscopy

W. C. Stolte, G. Öhrwall, M. M. Sant'Anna, I. Dominguez Lopez, L. T N Dang, M. N. Piancastelli, D. W. Lindle

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Anion-yield spectroscopy is shown to provide the first experimental demonstration of 100% site selectivity in small-molecule photofragmentation processes. In methanol, CH3OH, creation of the anionic OH- fragment occurs only via resonant excitation below the carbon K edge; the fragment is completely absent near the oxygen K edge. This observation and comparison of all anion and cation partial yields confirm the existence of at least two mechanisms for the creation of anions near the carbon K edge.
Original languageAmerican English
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
DOIs
StatePublished - 28 Jun 2002
Externally publishedYes

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Anions
Methanol
Spectrum Analysis
fragmentation
methyl alcohol
anions
Carbon
fragments
spectroscopy
carbon
Cations
selectivity
Oxygen
cations
oxygen
excitation
molecules
hydroxide ion

Cite this

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title = "100{\%} site-selective fragmentation in core-hole-photoexcited methanol by anion-yield spectroscopy",
abstract = "Anion-yield spectroscopy is shown to provide the first experimental demonstration of 100{\%} site selectivity in small-molecule photofragmentation processes. In methanol, CH3OH, creation of the anionic OH- fragment occurs only via resonant excitation below the carbon K edge; the fragment is completely absent near the oxygen K edge. This observation and comparison of all anion and cation partial yields confirm the existence of at least two mechanisms for the creation of anions near the carbon K edge.",
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100% site-selective fragmentation in core-hole-photoexcited methanol by anion-yield spectroscopy. / Stolte, W. C.; Öhrwall, G.; Sant'Anna, M. M.; Lopez, I. Dominguez; Dang, L. T N; Piancastelli, M. N.; Lindle, D. W.

In: Journal of Physics B: Atomic, Molecular and Optical Physics, 28.06.2002.

Research output: Contribution to journalArticle

TY - JOUR

T1 - 100% site-selective fragmentation in core-hole-photoexcited methanol by anion-yield spectroscopy

AU - Stolte, W. C.

AU - Öhrwall, G.

AU - Sant'Anna, M. M.

AU - Lopez, I. Dominguez

AU - Dang, L. T N

AU - Piancastelli, M. N.

AU - Lindle, D. W.

PY - 2002/6/28

Y1 - 2002/6/28

N2 - Anion-yield spectroscopy is shown to provide the first experimental demonstration of 100% site selectivity in small-molecule photofragmentation processes. In methanol, CH3OH, creation of the anionic OH- fragment occurs only via resonant excitation below the carbon K edge; the fragment is completely absent near the oxygen K edge. This observation and comparison of all anion and cation partial yields confirm the existence of at least two mechanisms for the creation of anions near the carbon K edge.

AB - Anion-yield spectroscopy is shown to provide the first experimental demonstration of 100% site selectivity in small-molecule photofragmentation processes. In methanol, CH3OH, creation of the anionic OH- fragment occurs only via resonant excitation below the carbon K edge; the fragment is completely absent near the oxygen K edge. This observation and comparison of all anion and cation partial yields confirm the existence of at least two mechanisms for the creation of anions near the carbon K edge.

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