An unconventional method for measuring the Tc L3-edge of technetium compounds

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dc.contributor.authorBlanchard, PERen_AU
dc.contributor.authorReynolds, EMen_AU
dc.contributor.authorKennedy, BJen_AU
dc.contributor.authorLing, CDen_AU
dc.contributor.authorZhang, Zen_AU
dc.contributor.authorThorogood, GJen_AU
dc.contributor.authorCowie, BCCen_AU
dc.contributor.authorThomsen, Len_AU
dc.date.accessioned2016-06-20T02:00:32Zen_AU
dc.date.available2016-06-20T02:00:32Zen_AU
dc.date.issued2014-01-01en_AU
dc.date.statistics2016-06-20en_AU
dc.description.abstractTc L3-edge XANES spectra have been collected on powder samples of SrTcO3 (octahedral Tc4+) and NH4TcO4 (tetrahedral Tc7+) immobilized in an epoxy resin. Features in the Tc L3-edge XANES spectra are compared with the pre-edge feature of the Tc K-edge as well as other 4d transition metal L3-edges. Evidence of crystal field splitting is obvious in the Tc L3-edge, which is sensitive to the coordination number and oxidation state of the Tc cation. The Tc L3 absorption edge energy difference between SrTcO3 (Tc4+) and NH4TcO4 (Tc7+) shows that the energy shift at the Tc L3-edge is an effective tool for studying changes in the oxidation states of technetium compounds. The Tc L3-edge spectra are compared with those obtained from Mo and Ru oxide standards with various oxidation states and coordination environments. Most importantly, fitting the Tc L3-edge to component peaks can provide direct evidence of crystal field splitting that cannot be obtained from the Tc K-edge. © International Union of Crystallography.en_AU
dc.identifier.citationBlanchard, P. E. R., Reynolds, E., Kennedy, B. J., Ling, C. D., Zhang, Z., Thorogood, G., Cowie, B, C. C., & Thomsen, L. (2014). An unconventional method for measuring the Tc L3-edge of technetium compounds. Journal of Synchrotron Radiation, 21(6), 1275-1281. doi:10.1107/S1600577514014891en_AU
dc.identifier.govdoc6724en_AU
dc.identifier.issn1600-5775en_AU
dc.identifier.issue6en_AU
dc.identifier.journaltitleJournal of Synchrotron Radiationen_AU
dc.identifier.pagination1275-1281en_AU
dc.identifier.urihttp://dx.doi.org/10.1107/S1600577514014891en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/7041en_AU
dc.identifier.volume21en_AU
dc.language.isoenen_AU
dc.publisherJournal of Synchrotron Radiationen_AU
dc.subjectSpectraen_AU
dc.subjectPowdersen_AU
dc.subjectEpoxidesen_AU
dc.subjectOxidationen_AU
dc.subjectResinsen_AU
dc.subjectAbsorptionen_AU
dc.titleAn unconventional method for measuring the Tc L3-edge of technetium compoundsen_AU
dc.typeJournal Articleen_AU
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