Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, State Key Laboratory for Physical Chemistry of Solid Surfaces, Xiamen University , Xiamen 361005, P. R. China.
Department of Chemistry, State Key Laboratory for Physical Chemistry of Solid Surfaces, Xiamen University , Xiamen 361005, P. R. China.
Anal Chem. 2017 Apr 4;89(7):3810-3813. doi: 10.1021/acs.analchem.7b00249. Epub 2017 Mar 21.
We report the design and the performance of a two-chamber thin-layer electrochemical device for in situ potential-dependent liquid NMR measurement. Liquid NMR spectra, simultaneously recorded with cyclic voltammetry (CV), have been obtained to reveal molecular changes with potentials scanning. As a proof of concept, redox properties of 1,4-benzoquinone based systems have been investigated, and a π dimerization has been identified by combining both in situ and ex situ NMR analyses. This work provides a new approach for spectroelectrochemistry, which will contribute to developing electrochemical NMR (EC-NMR) as an important tool for the analysis of electrochemical process at a molecular level.
我们报告了一种用于原位依赖于电势的液体 NMR 测量的双层薄层电化学装置的设计和性能。通过同时记录循环伏安法（CV），获得了液体 NMR 谱，以揭示随电势扫描的分子变化。作为概念验证，研究了基于 1,4-苯醌的体系的氧化还原性质，并通过结合原位和非原位 NMR 分析，鉴定了π二聚化。这项工作为光谱电化学提供了一种新方法，这将有助于将电化学 NMR（EC-NMR）发展成为分析分子水平电化学过程的重要工具。
