DOE OSTI2020
La2Ir3Sb4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent La sites. In the first La site, La is bonded in a 1-coordinate geometry to eight Ir and nine Sb atoms. There are a spread of La–Ir bond distances ranging from 3.25–3.71 Å. There are a spread of La–Sb bond distances ranging from 3.37–3.90 Å. In the second La site, La is bonded in a 8-coordinate geometry to six Ir and nine Sb atoms. There are a spread of La–Ir bond distances ranging from 3.33–3.63 Å. There are a spread of La–Sb bond distances ranging from 3.30–3.83 Å. There are three inequivalent Ir sites. In the first Ir site, Ir is bonded in a 10-coordinate geometry to five La and five Sb atoms. There are a spread of Ir–Sb bond distances ranging from 2.65–2.76 Å. In the second Ir site, Ir is bonded in a 10-coordinate geometry to four La and four Sb atoms. There are a spread of Ir–Sb bond distances ranging from 2.62–2.67 Å. In the third Ir site, Ir is bonded in a 5-coordinate geometry to five La and five Sb atoms. There are a spread of Ir–Sb bond distances ranging from 2.61–2.70 Å. There are four inequivalent Sb sites. In the first Sb site, Sb is bonded in a 3-coordinate geometry to five La and three Ir atoms. In the second Sb site, Sb is bonded in a 7-coordinate geometry to four La and three Ir atoms. In the third Sb site, Sb is bonded in a 6-coordinate geometry to five La and four Ir atoms. In the fourth Sb site, Sb is bonded in a 8-coordinate geometry to four La and four Ir atoms.