Title

100% Site-selective Fragmentation in Core-hole Photoexcited Methanol by Anion-ion Yield Spectroscopy

Document Type

Article

Publication Date

6-2002

Publication Title

Journal of Physics B: Atomic, Molecular and Optical Physics

Volume

35

First page number:

L253

Last page number:

L259

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.

Keywords

Anions; Fragmentation reactions; Ionization; Methanol

Disciplines

Analytical Chemistry | Atomic, Molecular and Optical Physics | Biological and Chemical Physics | Physical Chemistry

Language

English

Permissions

Use Find in Your Library, contact the author, or use interlibrary loan to garner a copy of the article. Publisher copyright policy allows author to archive post-print (author’s final manuscript). When post-print is available or publisher policy changes, the article will be deposited

Identifier

DOI: 10.1088/0953-4075/35/12/102

Publisher Citation

Stolte, Wayne C., Gunnar Öhrwall, M. M. Sant'Anna, I. Dominguez Lopez, L. T. N. Dang, M. N. Piancastelli, and Dennis W. Lindle. "100% site-selective fragmentation in core-hole-photoexcited methanol by anion-yield spectroscopy." Journal of Physics B: Atomic, Molecular and Optical Physics 35, no. 12 (2002): L253.

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