OBSERVATION OF INDIVIDUAL CHEMICAL REACTIONS IN SOLUTION

被引：93

作者：

COLLINSON, MM ^{[1
]}

WIGHTMAN, RM ^{[1
]}

机构：

[1] UNIV N CAROLINA, DEPT CHEM, CHAPEL HILL, NC 27599 USA

来源：

SCIENCE | 1995年 / 268卷 / 5219期

关键词：

D O I：

10.1126/science.268.5219.1883

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Discrete chemical reaction events occurring in solution have been observed by single photon detection of a bimolecular, chemiluminescent reaction. The reactants were generated from 9,10-diphenylanthracene in acetonitrile with potential pulses applied to an ultramicroelectrode. Electrogenerated radical ions of opposite sign react to yield the excited singlet state of the parent compound. The chemical reactions were restricted to a 20-femtoliter volume adjacent to the electrode by the use of rapid potential pulses. Individual chemical reaction events were stochastic and followed the Poisson distribution, and the interarrival time between successive reaction events was exponentially distributed.

引用

页码：1883 / 1885

页数：3

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