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Title
Incorporation of platinum atoms in a silicon-free boride of the YB50-type structure
AuthorSologub, Oksana ; Salamakha, Leonid ; Stöger, Berthold ; Rogl, Peter ; Michor, Herwig In der Gemeinsamen Normdatei der DNB nachschlagen ; Bauer, Ernst In der Gemeinsamen Normdatei der DNB nachschlagen
Published in
Journal of Alloys and Compounds, 2016, Vol. 675, page 99-103
PublishedElsevier, 2016
Edition
Submitted version
LanguageEnglish
Document typeJournal Article
Keywords (EN)boride / transition metal / single crystal X-ray diffraction / YB45-xPty
Project-/ReportnumberAustrian Science Fund (FWF): V279-N19
URNurn:nbn:at:at-ubtuw:3-3270 Persistent Identifier (URN)
DOI10.1016/j.jallcom.2016.03.015 
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 The work is publicly available
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Incorporation of platinum atoms in a silicon-free boride of the YB50-type structure [0.39 mb]
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Abstract (English)

A new Pt-doped yttrium boride of the YB50 family, YB45-xPty, x=2.12, y=0.21 (space group Pbam, a=16.6246(4) Å, b=17.6453(4) Å, c=9.4167(2) Å), has been synthesized by arc-melting pure elements and subsequent annealing at 1123 K. A single crystal has been studied in order to assess the Pt-doping effect on the crystal structure. Insertion of Pt in two 4h interstitial sites of the boron atom framework leads to the transformation of -[B12]-[B12]- icosahedral chain into -[B11]-Pt-[B11]- for 38.6% of them as well as, to a lesser extent, induces the disorder into the [B15] polyhedron and neighboring interstitial B site (97.3% vs 2.7%).

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