Exafs study of Ni2+ coordination in concentrated aqueous solutions |
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| Authors: | G. Licheri G. Paschina G. Piccaluga G. Pinna G. Vlaic |
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| Affiliation: | Istituto Chimico, Unievrsitá di Cagliari, Italy;Istituto G. Donegani, S.p.A., Novara, Italy |
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| Abstract: | EXAFS measurements are reported for NiCl2 and Ni(N03)2 aqueous solutions with molar concentrations of about 4, and for crystalline Ni(N03)2·6H2O. A comparative analysis of the Fourier filtered spectra confirms that the first coordination sphere essentially consists of water molecules. No evidence was found for outer-sphere Cl? ions approaching closely the inner sphere in NiCI2 solution. |
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