TbSe crystallizes in the hexagonal P6_3/mmc space group. Tb(1) is bonded to five equivalent Se(1) atoms to form a mixture of edge and corner-sharing TbSe5 trigonal bipyramids. Se(1) is bonded to five equivalent Tb(1) atoms to form a mixture of edge and corner-sharing SeTb5 trigonal bipyramids.
TbSe crystallizes in the hexagonal P6_3/mmc space group. Tb(1) is bonded to five equivalent Se(1) atoms to form a mixture of edge and corner-sharing TbSe5 trigonal bipyramids. There are three shorter (2.83 Å) and two longer (2.86 Å) Tb(1)-Se(1) bond lengths. Se(1) is bonded to five equivalent Tb(1) atoms to form a mixture of edge and corner-sharing SeTb5 trigonal bipyramids.