Materials Data on Dy5Si3B by Materials Project
Dy5BSi3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Dy3+ sites. In the first Dy3+ site, Dy3+ is bonded in a 7-coordinate geometry to two equivalent B3- and five equivalent Si4- atoms. Both Dy–B bond lengths are 2.59 Å. There are a spread of Dy–Si bond distances ranging from 2.98–3.45 Å. In the second Dy3+ site, Dy3+ is bonded to six equivalent Si4- atoms to form a mixture of distorted corner, edge, and face-sharing DySi6 octahedra. The corner-sharing octahedral tilt angles are 33°. All Dy–Si bond lengths are 3.06 Å. B3- is bonded to six equivalent Dy3+ atoms to form face-sharing BDy6 octahedra. Si4- is bonded in a 9-coordinate geometry to nine Dy3+ atoms.
36 MATERIALS SCIENCE↗