An application of the coincidence Doppler spectroscopy for substances of chemical interest: phthalocyanine and acetylacetonate complexes

被引：12
|
作者：
Ito, Y [1 ]
Suzuki, T
机构：
[1] Univ Tokyo, Nucl Sci & Technol Res Ctr, Tokai, Ibaraki 3191106, Japan
[2] KEK, Tsukuba, Ibaraki 3050801, Japan
来源：
RADIATION PHYSICS AND CHEMISTRY | 2000年 / 58卷 / 5-6期
关键词：
D O I：
10.1016/S0969-806X(00)00251-6
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：
Coincidence Doppler spectroscopy, which is particularly powerful when one is concerned with high momentum components of positron annihilation gamma-rays, has been applied to two different kinds of organo-metalic ligands: metal phthalocyanines and metal acetylacetonates. The energy (momentum) profiles of the annihilation gamma-rays were the same for metal phthalocyanines indicating that positron and/or positronium are not interacting with the metal ions. However, the profiles for the metal acetylacetonates evidently showed a dependence on the kind of metal ions. Discussion is made on the features of positron interaction which are different for phthalocyanines and acetylacetonates. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：743 / 747
页数：5
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