Cation distribution in mixed formates. I. Change in lattice constants and in infrared spectra with the chemical constitution of (Cu,MII)(HCOO)2 2H2O.
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概要
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Mixed crystals of formates, with the general formula of (Cu,M<SUP>II</SUP>)(HCOO)<SUB>2</SUB>·2H<SUB>2</SUB>O, were found to show non-uniform changes in lattice constants with the change in the chemical constitution. The reason for this unusual change was sought in relation to a possible non-uniform distribution of the cations over the two non-equivalent sites for metal ions. A simple model based merely on the difference in the radii of metallic ions did not agree with the results of IR measurements nor with those of an ESR study by Wagner <I>et al.</I> Another model, incorporating the change in the direction of the longest axis of the octahedron coordinating to the Cu<SUP>2+</SUP> ion at the Ml-site, as suggested from the results of a related work (Part II), was found not only to explain the changes in lattice constants, but also to conform with other evidences; it seems to be an essentially correct interpretation.
- 公益社団法人 日本化学会の論文
著者
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OSAKI Kenji
Faculty of Pharmaceutical Science, Kyoto University
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Taga Tooru
Faculty Of Pharmaceutical Science Kyoto University
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Ogata Toshiko
Faculty of Pharmaceutical Sciences, Kyoto University
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