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

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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