Materials Data on Sc2Te by Materials Project

Abstract

Sc2Te crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are six inequivalent Sc sites. In the first Sc site, Sc is bonded in a 2-coordinate geometry to two Te atoms. There are one shorter (2.98 Å) and one longer (3.16 Å) Sc–Te bond lengths. In the second Sc site, Sc is bonded in a 4-coordinate geometry to four Te atoms. There are two shorter (2.99 Å) and two longer (3.01 Å) Sc–Te bond lengths. In the third Sc site, Sc is bonded to five Te atoms to form a mixture of distorted corner and edge-sharing ScTe5 trigonal bipyramids. There are a spread of Sc–Te bond distances ranging from 2.94–2.98 Å. In the fourth Sc site, Sc is bonded in a 3-coordinate geometry to three Te atoms. There are one shorter (2.94 Å) and two longer (2.96 Å) Sc–Te bond lengths. In the fifth Sc site, Sc is bonded to five Te atoms to form a mixture of distorted corner and edge-sharing ScTe5 square pyramids. There are one shorter (2.87 Å) and four longer (2.93 Å) Sc–Te bond lengths. In the sixth Sc site, Sc is bonded in a 5-coordinate geometry to five Te atoms. There are a spread of Sc–Te bond distances ranging from 2.97–3.32 Å. There are three inequivalent Te sites. In the first Te site, Te is bonded in a 9-coordinate geometry to nine Sc atoms. In the second Te site, Te is bonded in a 8-coordinate geometry to eight Sc atoms. In the third Te site, Te is bonded to seven Sc atoms to form distorted edge-sharing TeSc7 pentagonal bipyramids.