STUDY OF OXIDATION-STATE CONTRAST IN GALLIUM DICHLORIDE BY SYNCHROTRON X-RAY ANOMALOUS SCATTERING

被引：51
|
作者：
WILKINSON, AP [1 ]
CHEETHAM, AK [1 ]
COX, DE [1 ]
机构：
[1] BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973
来源：
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE | 1991年 / 47卷
关键词：
D O I：
10.1107/S0108768190010485
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Synchrotron X-ray powder diffraction data have been collected on mixed-valence gallium dichloride, Ga(I)Ga(III)Cl4, at several wavelengths between 1.2481 and 1.1957 angstrom, the latter being very close to the Ga K edge. A significant difference in the f'(E) curves is observed between the Ga(I) and Ga(III) sites, within 10 eV of the edge. This result is consistent with an oxidation-state shift of up to 8 eV, with the Ga(I) edge at a lower energy, but may also reflect a difference in the forms of the f'(E) curves for Ga(I) and Ga(III) in the vicinity of the edge.
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收藏
页码：155 / 161
页数：7
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