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

页码：403 / 406

页数：4

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