FLASH CIDNP INVESTIGATION OF A CYCLIC PHOTOREACTION

被引：29

作者：

GOEZ, M

机构：

[1] Institut für Physikalische und Theoretische Chemie, Technische Universität Braunschweig, D-3300 Brunswick

来源：

CHEMICAL PHYSICS | 1990年 / 147卷 / 01期

关键词：

D O I：

10.1016/0301-0104(90)85030-Z

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The cyclic photoreaction between 9,10-anthraquinone and N,N-dimethylaniline (DMA) in acetonitrile-d3 has been studied between 237 and 296 K by time resolved measurements of chemically induced dynamic nuclear polarization (CIDNP). A generally applicable kinetic treatment including the calculation of absolute CIDNP signal intensifies is presented. For the dimethylamino protons in the donor radicals a mean nuclear spin relaxation time of 103 μs (±25%) was found. An activation energy of 11.3 kJ/mol (±10%) was determined for the degenerate electron exchange between DMA and its radical cation. © 1990.

引用

页码：143 / 154

页数：12

共 88 条

[1] ROLE OF DIFFUSION-CONTROLLED REACTION IN CHEMICALLY INDUCED NUCLEAR SPIN POLARIZATION [J].