Materials Data on Y5CuPb3 by Materials Project
Y5CuPb3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Y sites. In the first Y site, Y is bonded in a 7-coordinate geometry to two equivalent Cu and five equivalent Pb atoms. Both Y–Cu bond lengths are 2.82 Å. There are a spread of Y–Pb bond distances ranging from 3.08–3.61 Å. In the second Y site, Y is bonded to six equivalent Pb atoms to form a mixture of distorted corner, edge, and face-sharing YPb6 octahedra. The corner-sharing octahedral tilt angles are 35°. All Y–Pb bond lengths are 3.24 Å. Cu is bonded to six equivalent Y atoms to form face-sharing CuY6 octahedra. Pb is bonded in a 9-coordinate geometry to nine Y atoms.
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