THE EFFECT OF OXYGEN ON PHTHALOCYANINE RADICALS .2. COMPARATIVE-STUDY OF 2 LITHIUM PHTHALOCYANINE POWDER DERIVATIVES BY CONTINUOUS AND PULSED ESR

被引：12
|
作者：
BENSEBAA, F
PETIT, P
ANDRE, JJ
机构：
[1] Groupe de Recherches Interdisciplinaires sur les Matériaux Moléculaires (GRIMM), Institut Charles Sadron, 67083 Strasbourg Cédex
来源：
SYNTHETIC METALS | 1992年 / 52卷 / 01期
关键词：
D O I：
10.1016/0379-6779(92)90020-J
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A new phthalocyanine radical derivative, LiPc(CH3O)8, is extensively studied by electron spin resonance. The dynamic properties show an extremely narrowed single line due to spin exchange interactions. A drastic oxygen effect affecting linearly the linewidth (20 G/bar) is compared to that reported on LiPc (5 G/bar). In the octamethoxy derivative both static and dynamic properties are consistent with the absence of magnetic defects. Slow kinetics of molecular oxygen diffusion is observed: the reduced diffusion coefficient (7 x 10(-5) s-1) and the activation energy (0.27 eV) are similar to those obtained for LiPc powders.
引用
收藏
页码：57 / 69
页数：13
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