THE THIOMETHYL ANION - FORMATION, REACTIVITY, AND THERMODYNAMIC PROPERTIES

被引：46
作者：
KASS, SR
GUO, HZ
DAHLKE, GD
机构：
[1] Department of Chemistry, University of Minnesota, Minneapolis, 55455, MN
来源：
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY | 1990年 / 1卷 / 05期
关键词：
D O I：
10.1016/1044-0305(90)85016-F
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
The thiomethyl anion (1) has been generated by fluorodesilylation of trimethylsilylmethanethiol in a variable-temperature flowing afterglow device. The proton affinity (1649 ± 12 kJ mol-1) and electron affinity (0.67 ± .13 eV) were determined and compared to a previously reported molecular orbital calculation. Isomerization via a 1,2-proton shift does not take place between -40° and 100°C despite a 156 kJ mol-1 driving force. Ion-molecule reactions of 1 were examined with a number of reagents including N20, O2, CS2, COS, and CO2, Hydride ion transfer was observed in every case, along with other products, and thermodynamic information has been derived. © 1990 American Society for Mass Spectrometry.
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页码：366 / 371
页数：6
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