Selector for structural isomers of neutral molecules

被引：94

作者：

Filsinger, Frank ^{[1
]}

Erlekam, Undine ^{[1
]}

von Helden, Gert ^{[1
]}

Kuepper, Jochen ^{[1
]}

Meijer, Gerard ^{[1
]}

机构：

[1] Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.100.133003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have selected and spatially separated the two conformers of 3-aminophenol (C6H7NO) present in a molecular beam. Analogous to the separation of ions based on their mass-to-charge ratios in a quadrupole mass filter, the neutral conformers are separated based on their different mass-to-dipole-moment ratios in an ac electric quadrupole selector. For a given ac frequency, the individual conformers experience different focusing forces, resulting in different transmissions through the selector. These experiments demonstrate that conformer-selected samples of large molecules can be prepared, offering new possibilities for the study of gas-phase biomolecules.

引用

页数：4

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