CIDEP in radical-singlet molecular oxygen system

被引:0
|
作者
A. Kawai
M. Mitsui
Y. Kobori
K. Obi
机构
[1] Tokyo Institute of Technology,Department of Chemistry
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关键词
Tempo; Molecular Oxygen; Nitroxides; Nitroxide Radical; Laser Photolysis;
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摘要
Net absorptive CIDEP generation has been demonstrated on singlet molecular oxygen and 4-oxo-2,2,6,6-tetramethyl-1-piperidinyloxyl (OTEMPO) radical system in benzene. CIDEP generation was reasonably explained in terms of the radical-triplet pair mechanism of triplet molecular oxygen-OTEMPO pair with doublet precursor. Several excited molecule-OTEMPO systems have been investigated if this CIDEP generation contributes to their CIDEP spectra. Surprisingly strong CIDEP was produced even in the presence of trace amount of dissolved oxygen, which suggests the importance of complete degassing for CIDEP studies in general systems.
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页码:405 / 410
页数:5
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