An NMR and Moessbauer spectroscopic study of mixed-valence iron fluoride heptahydrate and related compounds.
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概要
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The powder X-ray patterns of Fe<SUP>III</SUP>Fe<SUP>II</SUP>F<SUB>5</SUB>·7H<SUB>2</SUB>O, AlFe<SUP>II</SUP>F<SUB>5</SUB>·7H<SUB>2</SUB>O, Fe<SUP>III</SUP>ZnF<SUB>5</SUB>·7H<SUB>2</SUB>O and AlZnF<SUB>5</SUB>·7H<SUB>2</SUB>O indicate that they are all isomorphous. When the Mössbauer spectra of the fluorides containing iron were measured, Fe<SUP>II</SUP> and/or Fe<SUP>III</SUP> oxidation states were recognized distinctly. The <SUP>19</SUP>F NMR spectra reveal that all the fluorine atoms are bonded to the trivalent metal ion (Al or Fe<SUP>III</SUP>) in these compounds. On the basis of these results, a possible structure is proposed for Fe<SUP>III</SUP>Fe<SUP>II</SUP>F<SUB>5</SUB>·7H<SUB>2</SUB>O.
- 公益社団法人 日本化学会の論文
著者
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Tominaga Takeshi
Department Of Chemistry Faculty Of Science The University Of Tokyo
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Sakai Takuhiko
Department of Chemistry, Faculty of Science, The University of Tokyo
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