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

Sebastian C. Peter, Mercouri G. Kanatzidis*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


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
Issue number2
StatePublished - Feb 2012


  • Crystal growth
  • Intermetallics
  • Metal flux synthesis
  • Ytterbium

ASJC Scopus subject areas

  • Inorganic Chemistry


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

Cite this