LOSS OF H-2 FROM METASTABLE CH3SIH2+ IONS

被引：8
|
作者：
TOBITA, S [1 ]
NAKAJIMA, K [1 ]
TAJIMA, S [1 ]
SHIGIHARA, A [1 ]
机构：
[1] HOSHI COLL PHARM,TOKYO,TOKYO 142,JAPAN
来源：
RAPID COMMUNICATIONS IN MASS SPECTROMETRY | 1990年 / 4卷 / 11期
关键词：
D O I：
10.1002/rcm.1290041104
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
Unimolecular dissociations of metastable methylsilyl cations CH3SiH3+ are investigated by mass‐analysed ion kinetic energy (MIKE) spectrometry. The predominant fragmentation is H2 loss which proceeds via at least two distinct mechanisms with substantially different kinetic energy releases. Their reaction mechanisms are inferred from the results of experiments and MNDO calculations. The MIKE spectrum of the deuterium‐labelled ion, CH3SiD2+ indicates that the H and D atoms are randomized before dissociation. Copyright © 1990 John Wiley & Sons Limited
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页码：472 / 475
页数：4
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