ThSi 2 type ytterbium disilicide and its analogues YbT xSi 2-x (T = Cr, Fe, Co)

Sebastian C. Peter, Mercouri Kanatzidis*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

YbSi 2 and the derivatives YbT xSi 2-x (T = Cr, Fe, Co) crystallizing in the α-ThSi 2 structure type were obtained as single crystals from reactions run in liquid indium. All silicides were investigated by single-crystal X-ray diffraction, I4 1/amd space group and the lattice constants are: a = 3.9868(6) Å and c = 13.541(3) Å for YbSi 2, a = 4.0123(6) Å and c = 13.542(3) Å for YbCr 0.27Si 1.73, a = 4.0142(6) Å and c = 13.830(3) Å for YbCr 0.71Si 1.29, a = 4.0080(6) Å and c = 13.751(3) Å for YbFe 0.34Si 1.66, and a = 4.0036(6) Å, c = 13.707(3) Å for YbCo 0.21Si 1.79. YbSi 2 and YbT xSi 2-x compounds are polar intermetallics with three-dimensional Si and M (T+Si) polyanion sub-networks, respectively, filled with ytterbium atoms. The degree of substitution of transition metal at the silicon site is signficant and leads to changes in the average bond lengths and bond angles substantially.

Original languageEnglish (US)
Pages (from-to)287-293
Number of pages7
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Volume638
Issue number2
DOIs
StatePublished - Feb 1 2012

Keywords

  • Crystal growth
  • Intermetallics
  • Metal flux synthesis
  • Ytterbium

ASJC Scopus subject areas

  • Inorganic Chemistry

Fingerprint

Dive into the research topics of 'ThSi <sub>2</sub> type ytterbium disilicide and its analogues YbT <sub>x</sub>Si <sub>2-x</sub> (T = Cr, Fe, Co)'. Together they form a unique fingerprint.

Cite this