Materials Data on YSiAu by Materials Project
YAuSi crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Y3+ is bonded to six equivalent Au1+ and six equivalent Si4- atoms to form a mixture of distorted edge and face-sharing YSi6Au6 cuboctahedra. There are three shorter (3.08 Å) and three longer (3.23 Å) Y–Au bond lengths. There are three shorter (3.03 Å) and three longer (3.28 Å) Y–Si bond lengths. Au1+ is bonded in a 3-coordinate geometry to six equivalent Y3+ and three equivalent Si4- atoms. All Au–Si bond lengths are 2.52 Å. Si4- is bonded in a 3-coordinate geometry to six equivalent Y3+ and three equivalent Au1+ atoms.
36 MATERIALS SCIENCE↗