SrTh(PS4)2 is Zircon-derived structured and crystallizes in the tetragonal P4_2/mbc space group. Sr(1) is bonded to four equivalent S(1) and four equivalent S(3) atoms to form distorted SrS8 hexagonal bipyramids that share edges with two equivalent Sr(1)S8 hexagonal bipyramids and edges with four equivalent P(1)S4 tetrahedra. Th(1) is bonded in a 8-coordinate geometry to four equivalent S(1) and four equivalent S(2) atoms. P(1) is bonded to one S(2), one S(3), and two equivalent S(1) atoms to form PS4 tetrahedra that share edges with two equivalent Sr(1)S8 hexagonal bipyramids. There are three inequivalent S sites. In the first S site, S(2) is bonded in a 3-coordinate geometry to two equivalent Th(1) and one P(1) atom. In the second S site, S(3) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one P(1) atom. In the third S site, S(1) is bonded in a distorted T-shaped geometry to one Sr(1), one Th(1), and one P(1) atom.
SrTh(PS4)2 is Zircon-derived structured and crystallizes in the tetragonal P4_2/mbc space group. Sr(1) is bonded to four equivalent S(1) and four equivalent S(3) atoms to form distorted SrS8 hexagonal bipyramids that share edges with two equivalent Sr(1)S8 hexagonal bipyramids and edges with four equivalent P(1)S4 tetrahedra. All Sr(1)-S(1) bond lengths are 3.18 Å. All Sr(1)-S(3) bond lengths are 3.13 Å. Th(1) is bonded in a 8-coordinate geometry to four equivalent S(1) and four equivalent S(2) atoms. All Th(1)-S(1) bond lengths are 2.85 Å. All Th(1)-S(2) bond lengths are 3.01 Å. P(1) is bonded to one S(2), one S(3), and two equivalent S(1) atoms to form PS4 tetrahedra that share edges with two equivalent Sr(1)S8 hexagonal bipyramids. The P(1)-S(2) bond length is 2.08 Å. The P(1)-S(3) bond length is 2.01 Å. Both P(1)-S(1) bond lengths are 2.06 Å. There are three inequivalent S sites. In the first S site, S(2) is bonded in a 3-coordinate geometry to two equivalent Th(1) and one P(1) atom. In the second S site, S(3) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one P(1) atom. In the third S site, S(1) is bonded in a distorted T-shaped geometry to one Sr(1), one Th(1), and one P(1) atom.