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Materials Data on Sn5(BIr3)2 by Materials Project

Sn5(Ir3B)2 crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Ir is bonded in a 7-coordinate geometry to two B and five Sn atoms. There are one shorter (2.19 Å) and one longer (2.22 Å) Ir–B bond lengths. There are a spread of Ir–Sn bond distances ranging from 2.72–2.91 Å. There are two inequivalent B sites. In the first B site, B is bonded in a distorted pentagonal pyramidal geometry to six equivalent Ir atoms. In the second B site, B is bonded in a 6-coordinate geometry to six equivalent Ir and three equivalent Sn atoms. All B–Sn bond lengths are 2.71 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 6-coordinate geometry to six equivalent Ir atoms. In the second Sn site, Sn is bonded in a 7-coordinate geometry to six equivalent Ir and one B atom.

36 MATERIALS SCIENCE↗

Materials Data on Sn4B3Ir7 by Materials Project

Ir7B3Sn4 crystallizes in the hexagonal P6_3/m space group. The structure is three-dimensional. there are two inequivalent Ir sites. In the first Ir site, Ir is bonded in a 2-coordinate geometry to two equivalent B and four Sn atoms. Both Ir–B bond lengths are 2.16 Å. There are a spread of Ir–Sn bond distances ranging from 2.73–2.95 Å. In the second Ir site, Ir is bonded to six equivalent B atoms to form face-sharing IrB6 octahedra. All Ir–B bond lengths are 2.31 Å. B is bonded to six Ir atoms to form a mixture of distorted edge and corner-sharing BIr6 pentagonal pyramids. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 6-coordinate geometry to six equivalent Ir atoms. In the second Sn site, Sn is bonded in a 6-coordinate geometry to six equivalent Ir atoms.

36 MATERIALS SCIENCE↗