NaEr(PS3)2 crystallizes in the triclinic P-1 space group. Na(1) is bonded to one S(1), one S(4), one S(5), one S(6), and two equivalent S(3) atoms to form distorted edge-sharing NaS6 pentagonal pyramids. Er(1) is bonded in a 8-coordinate geometry to one S(1), one S(3), one S(5), one S(6), two equivalent S(2), and two equivalent S(4) atoms. There are two inequivalent P sites. In the first P site, P(1) is bonded in a distorted trigonal non-coplanar geometry to one S(2), one S(5), and one S(6) atom. In the second P site, P(2) is bonded in a 3-coordinate geometry to one S(1), one S(3), and one S(4) atom. There are six inequivalent S sites. In the first S site, S(1) is bonded in a distorted T-shaped geometry to one Na(1), one Er(1), and one P(2) atom. In the second S site, S(2) is bonded in a 3-coordinate geometry to two equivalent Er(1) and one P(1) atom. In the third S site, S(3) is bonded in a distorted see-saw-like geometry to two equivalent Na(1), one Er(1), and one P(2) atom. In the fourth S site, S(4) is bonded to one Na(1), two equivalent Er(1), and one P(2) atom to form distorted edge-sharing SNaEr2P tetrahedra. In the fifth S site, S(5) is bonded in a T-shaped geometry to one Na(1), one Er(1), and one P(1) atom. In the sixth S site, S(6) is bonded in a distorted T-shaped geometry to one Na(1), one Er(1), and one P(1) atom.
NaEr(PS3)2 crystallizes in the triclinic P-1 space group. Na(1) is bonded to one S(1), one S(4), one S(5), one S(6), and two equivalent S(3) atoms to form distorted edge-sharing NaS6 pentagonal pyramids. The Na(1)-S(1) bond length is 2.99 Å. The Na(1)-S(4) bond length is 3.11 Å. The Na(1)-S(5) bond length is 2.89 Å. The Na(1)-S(6) bond length is 3.08 Å. There is one shorter (2.93 Å) and one longer (3.16 Å) Na(1)-S(3) bond length. Er(1) is bonded in a 8-coordinate geometry to one S(1), one S(3), one S(5), one S(6), two equivalent S(2), and two equivalent S(4) atoms. The Er(1)-S(1) bond length is 2.82 Å. The Er(1)-S(3) bond length is 2.81 Å. The Er(1)-S(5) bond length is 2.76 Å. The Er(1)-S(6) bond length is 2.78 Å. There is one shorter (2.85 Å) and one longer (3.14 Å) Er(1)-S(2) bond length. There is one shorter (2.99 Å) and one longer (3.04 Å) Er(1)-S(4) bond length. There are two inequivalent P sites. In the first P site, P(1) is bonded in a distorted trigonal non-coplanar geometry to one S(2), one S(5), and one S(6) atom. The P(1)-S(2) bond length is 2.04 Å. The P(1)-S(5) bond length is 2.03 Å. The P(1)-S(6) bond length is 2.02 Å. In the second P site, P(2) is bonded in a 3-coordinate geometry to one S(1), one S(3), and one S(4) atom. The P(2)-S(1) bond length is 2.02 Å. The P(2)-S(3) bond length is 2.04 Å. The P(2)-S(4) bond length is 2.05 Å. There are six inequivalent S sites. In the first S site, S(1) is bonded in a distorted T-shaped geometry to one Na(1), one Er(1), and one P(2) atom. In the second S site, S(2) is bonded in a 3-coordinate geometry to two equivalent Er(1) and one P(1) atom. In the third S site, S(3) is bonded in a distorted see-saw-like geometry to two equivalent Na(1), one Er(1), and one P(2) atom. In the fourth S site, S(4) is bonded to one Na(1), two equivalent Er(1), and one P(2) atom to form distorted edge-sharing SNaEr2P tetrahedra. In the fifth S site, S(5) is bonded in a T-shaped geometry to one Na(1), one Er(1), and one P(1) atom. In the sixth S site, S(6) is bonded in a distorted T-shaped geometry to one Na(1), one Er(1), and one P(1) atom.