Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
Phys Chem Chem Phys. 2011 Feb 14;13(6):2076-87. doi: 10.1039/c0cp01585g. Epub 2010 Dec 16.
The manipulation of the motion of neutral molecules with electric or magnetic fields has seen tremendous progress over the last decade. Recently, these techniques have been extended to the manipulation of large and complex molecules. In this article we introduce experimental approaches to the manipulation of large molecules, i.e., the deflection, focusing and deceleration using electric fields. We detail how these methods can be exploited to spatially separate quantum states and how to select individual conformers of complex molecules. We briefly describe mixed-field orientation experiments made possible by the quantum-state selection. Moreover, we provide an outlook on ultrafast diffraction experiments using these highly controlled samples.
在过去的十年中,利用电场或磁场来操控中性分子的运动取得了巨大的进展。最近,这些技术已经扩展到了对大而复杂分子的操控。在本文中,我们介绍了操控大分子的实验方法,即使用电场进行的偏转、聚焦和减速。我们详细说明了如何利用这些方法来空间分离量子态,以及如何选择复杂分子的单个构象。我们简要描述了通过量子态选择实现的混合场取向实验。此外,我们还展望了使用这些高度受控样品进行超快衍射实验的前景。