161DY ISOMER SHIFTS IN DYSPROSIUM COMPOUNDS

被引：20

作者：

ABELES, TP

BOS, WG

OUSEPH, PJ

机构：

[1] Department of Chemistry, University of Louisville, Louisville

[2] Engineering Physics Department, University of Louisville, Louisville

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1969年 / 30卷 / 09期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

D O I：

10.1016/0022-3697(69)90141-3

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Mössbauer absorption spectra were obtained for the 25.7 keV transitions of 161Dy in dysprosium metal and several compounds at room temperature. Isomer shifts relative to DyF3 are: Dy (metal), 3.05 mm sec-1; DyN, 0.85 mm sec-1; Dy2O3, 0.56 mm sec-1; DyH2.9, 0.55 mm sec-1; DyH2.1, 0.50 mm sec-1; DyF3. 1 2H2O, -0.04; and Dy2(SO43.8H2O, -0.46 mm sec-1. The relative isomer shifts of these compounds are attributed to varying degrees of covalency. The isomer shifts for the hydrides are compared to the predictions of the protonic and hydridic models for these compounds and appear to favor the hydridic model. © 1969.

引用

页码：2159 / &

共 50 条

[1]

BECK RL, 1962, LAR10 REP

[2] MAGNETIC PROPERTIES AND ELECTRONIC STRUCTURE OF LANTHANUM HYDRIDES [J].