An Ion Mobility Spectrometry/Mass Spectrometry (IMS/MS) Study of the Site of Protonation in Anilines

被引：60

作者：

Karpas, Zeev ^{[1
]}

Berant, Zvi ^{[1
]}

Stimac, Robert M. ^{[2
]}

机构：

[1] Nucl Res Ctr, Dept Phys, IL-84190 Beer Sheva, Israel

[2] PCP Inc, W Palm Beach, FL 33409 USA

来源：

STRUCTURAL CHEMISTRY | 1990年 / 1卷 / 2-3期

关键词：

D O I：

10.1007/BF00674262

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ion mobility spectrometry (IMS) and IMS/MS techniques were used to differentiate between nitrogen-protonated and carbon-protonated anilines, both of which coexist under the conditions of the IMS. Analysis of the results led to the conclusion that the former species had lower mobilities than the latter. This was attributed mainly to charge delocalization in the ring-protonated species, which results in a weaker interaction with the drift gas molecules. Furthermore, meta-alkyl substitution enhanced ring protonation, while in 2-chloroaniline the nitrogen-protonated species was predominant, as expected.

引用

页码：201 / 204

页数：4

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