Ontology highlight
ABSTRACT:
SUBMITTER: Hubner JM
PROVIDER: S-EPMC7004181 | biostudies-literature | 2020 Jan
REPOSITORIES: biostudies-literature
Hübner Julia-Maria JM Prots Yurii Y Schnelle Walter W Bobnar Matej M König Markus M Baitinger Michael M Simon Paul P Carrillo-Cabrera Wilder W Ormeci Alim A Svanidze Eteri E Grin Yuri Y Schwarz Ulrich U
Chemistry (Weinheim an der Bergstrasse, Germany) 20191212 4
The clathrate I superconductor Sr<sub>8</sub> Si<sub>46</sub> is obtained under high-pressure high-temperature conditions, at 5 GPa and temperatures in the range of 1273 to 1373 K. At ambient pressure, the compound decomposes upon heating at T=796(5) K into Si and SrSi<sub>2</sub> . The crystal structure of the clathrate is isotypic to that of Na<sub>8</sub> Si<sub>46</sub> . Chemical bonding analysis reveals conventional covalent bonding within the silicon network as well as additional multi-at ...[more]