EXAFS-STUDY OF THE Zn2+ COORDINATION IN AQUEOUS HALIDE SOLUTIONS

被引：22
作者：
Dreier, P. [1 ]
Rabe, P. [2 ]
机构：
[1] Univ Kiel, Inst Expt Phys, D-23001 Kiel 1, Germany
[2] Fachbereich Nat Wissensch Tech, Fachhochschule Ostfriesland, D-2970 Emden, Germany
来源：
JOURNAL DE PHYSIQUE | 1986年 / 47卷 / C-8期
关键词：
D O I：
10.1051/jphyscol:19868155
中图分类号：
学科分类号：
摘要：
Aqueous solutions of ZnCl2, ZnBr2 and ZnI2 in the concentration range from 0.1 molal up to saturation have been studied by EXAFS experiments at the zinc K-edge. EXAFS spectra of the crystalline compounds of ZnCl2, ZnBr2, ZnI2 and ZnSO4*7H(2)O have been used as references. In the low concentration range up to 0.5 molal a complete hydration of the zinc ions by 6 - 7 water molecules is observed. At high concentrations above 5 molal the mean local coordination around the zinc ions consists of halide ions and water molecules.
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页码：277 / 280
页数：4
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