TY - JOUR
T1 - ThSi 2 type ytterbium disilicide and its analogues YbT xSi 2-x (T = Cr, Fe, Co)
AU - Peter, Sebastian C.
AU - Kanatzidis, Mercouri
PY - 2012/2/1
Y1 - 2012/2/1
N2 - 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.
AB - 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.
KW - Crystal growth
KW - Intermetallics
KW - Metal flux synthesis
KW - Ytterbium
UR - http://www.scopus.com/inward/record.url?scp=84857335814&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84857335814&partnerID=8YFLogxK
U2 - 10.1002/zaac.201100284
DO - 10.1002/zaac.201100284
M3 - Article
AN - SCOPUS:84857335814
SN - 0044-2313
VL - 638
SP - 287
EP - 293
JO - Zeitschrift fur Anorganische und Allgemeine Chemie
JF - Zeitschrift fur Anorganische und Allgemeine Chemie
IS - 2
ER -