| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Engel, Stefan
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024On the Ytterbium Valence and the Physical Properties in Selected Intermetallic Phases
- 2024Nominal CaAl2Pt2 and Ca2Al3Pt – two new Intermetallic Compounds in the Ternary System Ca−Al−Pt
- 2024Synthesis, magnetic and NMR spectroscopic properties of the MAl5Pt3 series (M = Ca, Y, La–Nd, Sm–Er)†citations
- 2023Eu4Al13Pt9 – a coloring variant of the Ho4Ir13Ge9 type structurecitations
- 2023Raman and NMR spectroscopic and theoretical investigations of the cubic laves-phases REAl2 (RE = Sc, Y, La, Yb, Lu)citations
- 2023On the RE2TiAl3 (RE = Y, Gd–Tm, Lu) Series : The First Aluminum Representatives of the Rhombohedral Mg2Ni3Si Type Structure
- 2023MAl4Ir2 (M = Ca, Sr, Eu): superstructures of the KAu4In2 typecitations
- 2023Trivalent europium – a scarce case in intermetallicscitations
- 2022SrAl5Pt3 and Sr2Al16Pt9 – two new strontium aluminum platinidescitations
- 2022MAl4Ir2 (M = Ca, Sr, Eu) : superstructures of the KAu4In2 type
Places of action
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article
SrAl5Pt3 and Sr2Al16Pt9 – two new strontium aluminum platinides
Abstract
<jats:title>Abstract</jats:title><jats:p>During attempts to synthesize new platinides in the ternary system Sr–Al–Pt, single crystals of SrAl<jats:sub>5</jats:sub>Pt<jats:sub>3</jats:sub> and Sr<jats:sub>2</jats:sub>Al<jats:sub>16</jats:sub>Pt<jats:sub>9</jats:sub> were obtained from a reaction of the elements with the nominal composition Sr<jats:sub>4</jats:sub>Al<jats:sub>13</jats:sub>Pt<jats:sub>9</jats:sub>. Both orthorhombic structures were refined based on single crystal x-ray diffraction data (SrAl<jats:sub>5</jats:sub>Pt<jats:sub>3</jats:sub>: <jats:italic>Pnma</jats:italic>, Wyckoff sequence <jats:italic>c</jats:italic><jats:sup>9</jats:sup>, <jats:italic>a</jats:italic> = 2065.04(7), <jats:italic>b</jats:italic> = 413.74(1), <jats:italic>c</jats:italic> = 738.98(3) pm, <jats:italic>wR</jats:italic>2 = 0.0310, 867 <jats:italic>F</jats:italic><jats:sup>2</jats:sup> values, 56 variables; Sr<jats:sub>2</jats:sub>Al<jats:sub>16</jats:sub>Pt<jats:sub>9</jats:sub>: <jats:italic>Immm</jats:italic>, Wyckoff sequence <jats:italic>l</jats:italic><jats:sup>4</jats:sup><jats:italic>j</jats:italic><jats:sup>2</jats:sup><jats:italic>ihga</jats:italic>, <jats:italic>a</jats:italic> = 416.69(2), <jats:italic>b</jats:italic> = 1193.53(6), <jats:italic>c</jats:italic> = 1832.38(9) pm, <jats:italic>wR</jats:italic>2 = 0.0517, 671 <jats:italic>F</jats:italic><jats:sup>2</jats:sup> values, 49 variables); full atomic ordering was observed in both cases. In order to analyze the bonding situation of these new platinides, quantum-chemical calculations were conducted. According to density functional theory both compounds are polar intermetallics with high negative charges on the Pt atoms and covalently bonded [Al<jats:sub>5</jats:sub>Pt<jats:sub>3</jats:sub>]/[Al<jats:sub>16</jats:sub>Pt<jats:sub>9</jats:sub>] networks showing strong Pt–Al alongside of weak Al–Al and Pt–Pt bonding.</jats:p>