Materials Data on TbNiSn2 by Materials Project
TbNiSn2 is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Tb sites. In the first Tb site, Tb is bonded in a 8-coordinate geometry to six Ni and eight Sn atoms. There are a spread of Tb–Ni bond distances ranging from 3.30–3.48 Å. There are a spread of Tb–Sn bond distances ranging from 3.13–3.20 Å. In the second Tb site, Tb is bonded in a 11-coordinate geometry to three Ni and nine Sn atoms. There are two shorter (3.09 Å) and one longer (3.53 Å) Tb–Ni bond lengths. There are a spread of Tb–Sn bond distances ranging from 3.16–3.52 Å. In the third Tb site, Tb is bonded in a 1-coordinate geometry to four Ni and nine Sn atoms. There are two shorter (3.16 Å) and two longer (3.26 Å) Tb–Ni bond lengths. There are a spread of Tb–Sn bond distances ranging from 3.16–3.59 Å. There are three inequivalent Ni sites. In the first Ni site, Ni is bonded in a 10-coordinate geometry to five Tb and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.55–2.76 Å. In the second Ni site, Ni is bonded in a 7-coordinate geometry to three Tb and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.51–2.79 Å. In the third Ni site, Ni is bonded in a 10-coordinate geometry to five Tb and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.53–2.68 Å. There are six inequivalent Sn sites. In the first Sn site, Sn is bonded in a 8-coordinate geometry to four Tb, three equivalent Ni, and one Sn atom. The Sn–Sn bond length is 3.03 Å. In the second Sn site, Sn is bonded in a 9-coordinate geometry to six Tb and three Ni atoms. In the third Sn site, Sn is bonded in a 6-coordinate geometry to four Tb and two Ni atoms. In the fourth Sn site, Sn is bonded in a 7-coordinate geometry to four Tb and three Ni atoms. In the fifth Sn site, Sn is bonded in a 8-coordinate geometry to four Tb, three Ni, and one Sn atom. In the sixth Sn site, Sn is bonded in a 2-coordinate geometry to four Tb and one Ni atom.