Abstract
Si K- and L-edge ELNES spectroscopy and multiple-scattering (MS) calculations are used to examine mixed Si coordination compounds varying in SiVI:SiIV ratio. As in previous studies, the edges are influenced mainly by silicon coordination (tetrahedral vs. octahedral), as supported by the MS calculations. We demonstrate two methods semi-quantitatively to extract the value of SiVI/(SiVI+SiIV): (1) A linear relationship between the L2,3-L1 splitting and SiVI/(SiVI+SiIV) is observed, (2) a fitting method based on the coaddition of reference tetrahedral and octahedral Si spectra is applied to both Si K- and L-edge ELNES spectra.
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Received: February 10, 1997 / Revised, accepted: May 23, 1997
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Poe, B., Seifert, F., Sharp, T. et al. ELNES spectroscopy of mixed Si coordination minerals. Phys Chem Min 24, 477–487 (1997). https://doi.org/10.1007/s002690050062
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DOI: https://doi.org/10.1007/s002690050062