Probing electrostatic effects: Formation and characterization of zwitterionic ions and their "neutral" counterparts in the gas phase

被引：17

作者：

Broadus, KM ^{[1
]}

Kass, SR ^{[1
]}

机构：

[1] Univ Minnesota, Dept Chem, Minneapolis, MN 55455 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2000年 / 122卷 / 37期

关键词：

D O I：

10.1021/ja0016708

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A dipolar ion and its nonzwitterionic counterpart were generated and characterized in the gas phase. A single charge site is found to be sufficient to lower the energy of a zwitterion well below its neutral counterpart. Charge separation in a dipolar anion enables hydrogen-deuterium exchange to take place with acids over an extraordinarily large range. These results provide a basis for studying electrostatic effects and understanding mass spectroscopic processes involving large biological molecules.

引用

页码：9014 / 9018

页数：5

共 41 条

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[2]

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[3]

2-W

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