Materials Data on ThSbSe by Materials Project
ThSbSe is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Th4+ is bonded in a 9-coordinate geometry to four equivalent Sb2- and five equivalent Se2- atoms. All Th–Sb bond lengths are 3.31 Å. There are one shorter (3.05 Å) and four longer (3.11 Å) Th–Se bond lengths. Sb2- is bonded in a 8-coordinate geometry to four equivalent Th4+ and four equivalent Sb2- atoms. All Sb–Sb bond lengths are 3.03 Å. Se2- is bonded to five equivalent Th4+ atoms to form a mixture of distorted edge and corner-sharing SeTh5 trigonal bipyramids.