Valence states of 57Fe decayed from 57Mn implanted into KMnO4

被引：9
|
作者：
Kobayashi, Y [1 ]
Kubo, MK
Yamada, Y
Saito, T
Ueno, H
Ogawa, H
Sato, W
Yoneda, K
Watanabe, H
Imai, N
Miyoshi, H
Asahi, K
机构：
[1] RIKEN, Appl Nucl Phys Lab, Wako, Saitama 3510198, Japan
[2] Univ Tokyo, Sch Sci, Bunkyo Ku, Tokyo 1130033, Japan
[3] Sci Univ Tokyo, Fac Sci, Dept Chem, Shinjuku Ku, Tokyo 1628601, Japan
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2003年 / 255卷 / 03期
关键词：
D O I：
10.1023/A:1022585622743
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
In-beam Mossbauer spectra of Fe-57, decayed from short-lived Mn-57 (T-1/2 = 1.45 min) implanted into potassium permanganate, KMnO4, were measured at temperatures between 11 K and 130 K. This is the first application of a secondary RI beam to the study of valence states after nuclear transformation. The in-beam Mossbauer spectra obtained below 90 K could be analyzed with two components, a doublet and a singlet. From the calculations of the molecular orbital wave functions, the singlet is suggested to be substitutional Fe-57 atoms for Mn-sites in tetrahedral [MnO4](-) with an unusually high valence state of Fe8+.
引用
收藏
页码：403 / 406
页数：4
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