Pr3NS3 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 6-coordinate geometry to one N(1), two equivalent S(2), and three equivalent S(3) atoms. In the second Pr site, Pr(2) is bonded in a 7-coordinate geometry to two equivalent N(1), one S(2), one S(3), and three equivalent S(1) atoms. In the third Pr site, Pr(3) is bonded in a 7-coordinate geometry to one N(1), two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms. N(1) is bonded to one Pr(1), one Pr(3), and two equivalent Pr(2) atoms to form NPr4 tetrahedra that share corners with three equivalent S(3)Pr6 octahedra, corners with two equivalent S(1)Pr5 square pyramids, corners with two equivalent N(1)Pr4 tetrahedra, edges with two equivalent S(3)Pr6 octahedra, and edges with three equivalent S(1)Pr5 square pyramids. The corner-sharing octahedral tilt angles range from 12-42°. There are three inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Pr(3) and three equivalent Pr(2) atoms to form distorted SPr5 square pyramids that share corners with five equivalent S(3)Pr6 octahedra, corners with two equivalent N(1)Pr4 tetrahedra,  an edgeedge with one S(3)Pr6 octahedra, edges with four equivalent S(1)Pr5 square pyramids, and edges with three equivalent N(1)Pr4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-55°. In the second S site, S(2) is bonded in a 5-coordinate geometry to one Pr(2), two equivalent Pr(1), and two equivalent Pr(3) atoms. In the third S site, S(3) is bonded to one Pr(2), two equivalent Pr(3), and three equivalent Pr(1) atoms to form distorted SPr6 octahedra that share corners with five equivalent S(1)Pr5 square pyramids, corners with three equivalent N(1)Pr4 tetrahedra, edges with four equivalent S(3)Pr6 octahedra,  an edgeedge with one S(1)Pr5 square pyramid, and edges with two equivalent N(1)Pr4 tetrahedra.
Pr3NS3 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Pr sites. In the first Pr site, Pr(1) is bonded in a 6-coordinate geometry to one N(1), two equivalent S(2), and three equivalent S(3) atoms. The Pr(1)-N(1) bond length is 2.30 Å. Both Pr(1)-S(2) bond lengths are 2.88 Å. There are two shorter (2.89 Å) and one longer (3.10 Å) Pr(1)-S(3) bond length. In the second Pr site, Pr(2) is bonded in a 7-coordinate geometry to two equivalent N(1), one S(2), one S(3), and three equivalent S(1) atoms. Both Pr(2)-N(1) bond lengths are 2.41 Å. The Pr(2)-S(2) bond length is 2.89 Å. The Pr(2)-S(3) bond length is 3.26 Å. There is one shorter (2.94 Å) and two longer (3.12 Å) Pr(2)-S(1) bond lengths. In the third Pr site, Pr(3) is bonded in a 7-coordinate geometry to one N(1), two equivalent S(1), two equivalent S(2), and two equivalent S(3) atoms. The Pr(3)-N(1) bond length is 2.35 Å. Both Pr(3)-S(1) bond lengths are 2.85 Å. Both Pr(3)-S(2) bond lengths are 3.02 Å. Both Pr(3)-S(3) bond lengths are 3.18 Å. N(1) is bonded to one Pr(1), one Pr(3), and two equivalent Pr(2) atoms to form NPr4 tetrahedra that share corners with three equivalent S(3)Pr6 octahedra, corners with two equivalent S(1)Pr5 square pyramids, corners with two equivalent N(1)Pr4 tetrahedra, edges with two equivalent S(3)Pr6 octahedra, and edges with three equivalent S(1)Pr5 square pyramids. The corner-sharing octahedral tilt angles range from 12-42°. There are three inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Pr(3) and three equivalent Pr(2) atoms to form distorted SPr5 square pyramids that share corners with five equivalent S(3)Pr6 octahedra, corners with two equivalent N(1)Pr4 tetrahedra,  an edgeedge with one S(3)Pr6 octahedra, edges with four equivalent S(1)Pr5 square pyramids, and edges with three equivalent N(1)Pr4 tetrahedra. The corner-sharing octahedral tilt angles range from 40-55°. In the second S site, S(2) is bonded in a 5-coordinate geometry to one Pr(2), two equivalent Pr(1), and two equivalent Pr(3) atoms. In the third S site, S(3) is bonded to one Pr(2), two equivalent Pr(3), and three equivalent Pr(1) atoms to form distorted SPr6 octahedra that share corners with five equivalent S(1)Pr5 square pyramids, corners with three equivalent N(1)Pr4 tetrahedra, edges with four equivalent S(3)Pr6 octahedra,  an edgeedge with one S(1)Pr5 square pyramid, and edges with two equivalent N(1)Pr4 tetrahedra.