Department of Chemical Physics, Weizmann Institute of Science, Rehovot, 76100, Israel.
DIEF, University of Modena and Reggio Emilia, 41125, Modena, Italy.
Angew Chem Int Ed Engl. 2017 Nov 13;56(46):14587-14590. doi: 10.1002/anie.201708829. Epub 2017 Oct 18.
Electron spin states play an important role in many chemical processes. Most spin-state studies require the application of a magnetic field. Recently it was found that the transport of electrons through chiral molecules also depends on their spin states and may also play a role in enantiorecognition. Electrochemistry is an important tool for studying spin-specific processes and enantioseparation of chiral molecules. A new device is presented, which serves as the working electrode in electrochemical cells and is capable of providing information on the correlation of spin selectivity and the electrochemical process. The device is based on the Hall effect and it eliminates the need to apply an external magnetic field. Spin-selective electron transfer through chiral molecules can be monitored and the relationship between the enantiorecognition process and the spin of electrons elucidated.
电子自旋态在许多化学过程中起着重要作用。大多数自旋态研究都需要施加磁场。最近发现，电子通过手性分子的输运也依赖于它们的自旋态，并可能在手性识别中发挥作用。电化学是研究自旋特异性过程和手性分子对映体分离的重要工具。本文提出了一种新的器件，它作为电化学池中的工作电极，能够提供关于自旋选择性与电化学过程相关性的信息。该器件基于霍尔效应，无需施加外磁场。可以监测手性分子中自旋选择性的电子转移，并阐明对映体识别过程与电子自旋之间的关系。
