Abstract
The advantages resulting from the combination of the EXAFS (extended X-ray absorption fine structure) and matrix isolation techniques to the study of high temperature molecules are outlined. Equipment allowing the collection of EXAFS data from matrix isolated molecules at ca9 K, combined with in situmonitoring of the isolated materials by vibrational spectroscopy is described.
Metal K-edge EXAFS data of cis-[Fe(CO)4I2] isolated in CH4and of FeC12and CoC12isolated in the potentially reactive matrix CO are presented and described. The FeC12data show a mixture of trans[Fe(CO)4C12] and “free” FeC12are present, whereas for CoC12only van der Waals interaction between linear CoC12and the CO matrix was observed. EXAFS can also provide information about the short range order (<4th shell) in the matrix material and this is illustrated by data for solid Kr and for Kr in Ar.
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Beattie, I.R., Binsted, N., Levason, W., Ogden, J.S., Spicer, M.D., Young, N.A. (1990). EXAFS, Matrix Isolation, and High Temperature Chemistry. In: Hastie, J.W. (eds) Materials Chemistry at High Temperatures. Materials Chemistry at High Temperatures, vol 1. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-4612-0481-7_6
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DOI: https://doi.org/10.1007/978-1-4612-0481-7_6
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