Development of a dual-electrolysis stopped-flow method for the observation of electrogenerated chemiluminescence in energy-sufficient systems.
Development of a dual-electrolysis stopped-flow method for the observation of electrogenerated chemiluminescence in energy-sufficient systems.
复制标题
开发双电解停流方法，用于观察能量充足系统中的电生化学发光。
DOI：
10.1021/ac980692y
复制
发表时间：
1998
影响因子：
7.4
通讯作者：
Satoshi Okazaki
中科院分区：
文献类型：
--
作者：
M. Oyama;Satoshi Okazaki
采用双电解停流体系建立了一种新的电致化学发光（ECL）测定方法。利用这种方法，可以很容易地观察到来自由不同种类的离子自由基组成的“能量充足”系统的ECL直接混合的电解溶液。已经详细描述了装置和方法以及用于各种能量充足系统的ECL观测。特别是，在噻蒽（TH）的阳离子自由基和芘（PY）的阴离子自由基之间的反应中，人们发现，发射光谱的变化与前体的加入，反映了复杂的电子和能量转移过程中的解决方案。目前的结果表明，电子和能量转移反应的显着变化，这取决于分子的类型。加入第三种分子的ECL观察结果也为比较激发态形成的容易程度提供了信息。结果表明，与TH和PY相比，9，10-二苯基蒽和红荧烯更容易形成激发态。
New methodology for the measurement of electrogenerated chemiluminescence (ECL) has been developed by using a dual-electrolysis stopped-flow system. Using this method, the ECL from "energy-sufficient" systems composed of different kinds of ion radicals can be easily observed by mixing both the electrolyzed solutions directly. The apparatus and method have been described in detail as well as the ECL observations for various energy-sufficient systems. In particular, in the reaction between the thianthrene (TH) cation radical and the pyrene (PY) anion radical, it was found that the emission spectra changed with the addition of the precursors, reflecting both complex electron- and energy-transfer processes in solution. The present results indicate that the electron- and energy-transfer reactions changed significantly, depending on the type of molecules. The ECL observation with the addition of the third molecule was also informative to compare the ease of the formation of the excited states. It was clarified that the excited states of 9,10-diphenylanthracene and rubrene are easily formed compared with those of TH and PY.