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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1107/S1600577514014891
|2 doi
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|a pubmed25n0810.xml
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|a (DE-627)NLM243044674
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|a (NLM)25343795
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Blanchard, Peter E R
|e verfasserin
|4 aut
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|a An unconventional method for measuring the Tc L3-edge of technetium compounds
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 30.03.2015
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|a Date Revised 25.10.2014
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Tc L3-edge XANES spectra have been collected on powder samples of SrTcO3 (octahedral Tc(4+)) and NH4TcO4 (tetrahedral Tc(7+)) 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 (Tc(4+)) and NH4TcO4 (Tc(7+)) 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
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Tc L3-edge
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|a XANES
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|a crystal field splitting
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|a radioactive materials
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|a technetium oxides
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|a Reynolds, Emily
|e verfasserin
|4 aut
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|a Kennedy, Brendan J
|e verfasserin
|4 aut
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1 |
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|a Ling, Chris D
|e verfasserin
|4 aut
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1 |
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|a Zhang, Zhaoming
|e verfasserin
|4 aut
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|a Thorogood, Gordon
|e verfasserin
|4 aut
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1 |
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|a Cowie, Bruce C C
|e verfasserin
|4 aut
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| 700 |
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|a Thomsen, Lars
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 21(2014), Pt 6 vom: 01. Nov., Seite 1275-81
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnns
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| 773 |
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|g volume:21
|g year:2014
|g number:Pt 6
|g day:01
|g month:11
|g pages:1275-81
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|u http://dx.doi.org/10.1107/S1600577514014891
|3 Volltext
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