Na2ZnS2 crystallizes in the orthorhombic Ibam space group. Na(1) is bonded in a 5-coordinate geometry to five equivalent S(1) atoms. Zn(1) is bonded to four equivalent S(1) atoms to form distorted edge-sharing ZnS4 tetrahedra. S(1) is bonded to five equivalent Na(1) and two equivalent Zn(1) atoms to form a mixture of distorted corner, edge, and face-sharing SNa5Zn2 pentagonal bipyramids.
Na2ZnS2 crystallizes in the orthorhombic Ibam space group. Na(1) is bonded in a 5-coordinate geometry to five equivalent S(1) atoms. There are a spread of Na(1)-S(1) bond distances ranging from 2.77-3.06 Å. Zn(1) is bonded to four equivalent S(1) atoms to form distorted edge-sharing ZnS4 tetrahedra. All Zn(1)-S(1) bond lengths are 2.36 Å. S(1) is bonded to five equivalent Na(1) and two equivalent Zn(1) atoms to form a mixture of distorted corner, edge, and face-sharing SNa5Zn2 pentagonal bipyramids.