Materials Data on Sm2Te3 by Materials Project
Sm2Te3 crystallizes in the tetragonal I-42d space group. The structure is three-dimensional. there are three inequivalent Sm3+ sites. In the first Sm3+ site, Sm3+ is bonded to eight Te2- atoms to form a mixture of distorted face, edge, and corner-sharing SmTe8 hexagonal bipyramids. There are a spread of Sm–Te bond distances ranging from 3.17–3.38 Å. In the second Sm3+ site, Sm3+ is bonded to eight Te2- atoms to form a mixture of distorted face, edge, and corner-sharing SmTe8 hexagonal bipyramids. There are a spread of Sm–Te bond distances ranging from 3.18–3.42 Å. In the third Sm3+ site, Sm3+ is bonded to eight Te2- atoms to form a mixture of distorted face, edge, and corner-sharing SmTe8 hexagonal bipyramids. There are a spread of Sm–Te bond distances ranging from 3.14–3.44 Å. There are three inequivalent Te2- sites. In the first Te2- site, Te2- is bonded to five Sm3+ atoms to form a mixture of distorted face, edge, and corner-sharing TeSm5 square pyramids. In the second Te2- site, Te2- is bonded in a 6-coordinate geometry to six Sm3+ atoms. In the third Te2- site, Te2- is bonded to five Sm3+ atoms to form a mixture of distorted face, edge, and corner-sharing TeSm5 square pyramids.