X-ray fluorescence spectroscopy of inorganic solids. III. Si K.ALPHA. and K.BETA. spectra in binar silicates.
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概要
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The Si <I>K</I><SUB>α</SUB> and <I>K</I><SUB>β</SUB> spectra of several silicates were measured. The <I>K</I><SUB>α</SUB> spectra showed negative energy shifts referred to SiO<SUB>2</SUB>; these are consistent with the results for the binary silicate glasses. On the other hand, the <I>K</I><SUB>β</SUB> shifts were positive and the absolute values were about ten times as large as the <I>K</I><SUB>α</SUB> shifts in each compound. A linear relation was observed between <I>K</I><SUB>α</SUB> and <I>K</I><SUB>β</SUB> energy shifts. The Si 1s energy shift for the orthosilicate was estimated from the <I>K</I><SUB>β</SUB> spectral splitting of Na<SUB>2</SUB>Si<SUB>2</SUB>O<SUB>5</SUB>. The stability of the silicon–oxygen bond was discussed with the aid of the shifts in <I>K</I><SUB>β</SUB> and the Si 1s. The above linear relation suggests that the silicon–oxygen bond strength is lowered (the <I>K</I><SUB>β</SUB> energy is increased) with decreasing Goulombic interaction (lowering <I>K</I><SUB>α</SUB> energy) between silicon and oxygen in the silicates.
- 公益社団法人 日本化学会の論文
著者
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Yokokawa Toshio
Department Of Chemistry Faculty Of Science Hokkaido University
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Maekawa Takashi
Department Of Applied Chemistry Faculty Of Engineering Ehime Universiry
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Kikuchi Niro
Department of Chemistry, Faculty of Science, Hokkaido University
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Maekawa Takashi
Department of Chemistry, Faculty of Science, Hokkaido University
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