JMSSJ On-line, Vol. 44 (1996) No. 2, pp. 157-164
Negative Ion Formation by Attachment of Electrons to Radicals: CN- -Positive Ionization Based Negative Ion Formation-
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    Masao INOUE*

    Dedicated to the memory of Professor Toshio Sugiura. * Department of Applied Physics and Chemistry, The University of Electro-Communications (1-5-1 Chofugaoka, Chofu-shi, Tokyo 182, Japan)

Due to the unpaired electron the radical can capture a free electron in its singly-occupied orbital and become a negative ion. In gases irradiated by ionizing radiation radicals are formed by various processes such as dissociation of excited molecules and ions, ion-molecule reactions, and recombination of ions. We wish to introduce our ion cyclotron resonance (ICR) spetrometric study of CN- ion produced in hydrogen cyanide and to demonstrate that the radical CN· formed from the positive ions are the important precursors of CN- ions observed.

Key words: Negative ion, Ion-molecule reaction, Ion cyclotron resonance spectrometry, Hydrogen cyanide, Solvated electron

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