| Autor: |
Amon A; Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Straße 40, Dresden 01187, Germany., Svanidze E, Prots Y, Nicklas M, Burkhardt U, Ormeci A, Leithe-Jasper A, Grin Y |
| Jazyk: |
angličtina |
| Zdroj: |
Dalton transactions (Cambridge, England : 2003) [Dalton Trans] 2020 Jul 21; Vol. 49 (27), pp. 9362-9368. Date of Electronic Publication: 2020 Jun 25. |
| DOI: |
10.1039/d0dt01374a |
| Abstrakt: |
The new ternary compound Y 4 Be 33 Pt 16 was prepared from elements by arc melting, and its crystal structure was determined from single-crystal X-ray diffraction data (space group I4[combining macron]3d, a = 13.4849(3) Å). The material is the first representative of a new structure type of complex intermetallic compounds and reveals a cage-like crystal structure. Analysis of chemical bonding by means of the electron localizabilty approach indicates ionic interaction of yttrium with the rest of the crystal structure, characteristic for cage compounds, in particular for clathrates. In contrast to the mostly two-centre bonding in the framework of clathrates, the new compound is characterized by a multi-centre interaction within the framework, caused by the demand of the valence electrons in the system. The non-centrosymmetric material enters the superconducting state at T C = 0.9 K. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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