Na2CrCSO7 crystallizes in the monoclinic P2_1/m space group. Na(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. Cr(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(6) atoms to form distorted CrO6 octahedra that share corners with four equivalent S(1)O4 tetrahedra. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. S(1) is bonded to one O(4), one O(5), and two equivalent O(6) atoms to form SO4 tetrahedra that share corners with four equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-52°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Na(1) and one C(1) atom. In the second O site, O(2) is bonded to two equivalent Na(1), one Cr(1), and one C(1) atom to form distorted edge-sharing ONa2CrC trigonal pyramids. In the third O site, O(3) is bonded to two equivalent Na(1), one Cr(1), and one C(1) atom to form distorted edge-sharing ONa2CrC tetrahedra. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Na(1), one Cr(1), and one S(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to two equivalent Na(1), one Cr(1), and one S(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Na(1), one Cr(1), and one S(1) atom.
Na2CrCSO7 crystallizes in the monoclinic P2_1/m space group. Na(1) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom. The Na(1)-O(1) bond length is 2.31 Å. The Na(1)-O(2) bond length is 2.42 Å. The Na(1)-O(3) bond length is 2.36 Å. The Na(1)-O(4) bond length is 2.72 Å. The Na(1)-O(5) bond length is 2.93 Å. The Na(1)-O(6) bond length is 2.46 Å. Cr(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(6) atoms to form distorted CrO6 octahedra that share corners with four equivalent S(1)O4 tetrahedra. The Cr(1)-O(2) bond length is 2.08 Å. The Cr(1)-O(3) bond length is 2.10 Å. The Cr(1)-O(4) bond length is 2.12 Å. The Cr(1)-O(5) bond length is 2.12 Å. Both Cr(1)-O(6) bond lengths are 2.43 Å. C(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. The C(1)-O(1) bond length is 1.26 Å. The C(1)-O(2) bond length is 1.32 Å. The C(1)-O(3) bond length is 1.33 Å. S(1) is bonded to one O(4), one O(5), and two equivalent O(6) atoms to form SO4 tetrahedra that share corners with four equivalent Cr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-52°. The S(1)-O(4) bond length is 1.51 Å. The S(1)-O(5) bond length is 1.52 Å. Both S(1)-O(6) bond lengths are 1.48 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Na(1) and one C(1) atom. In the second O site, O(2) is bonded to two equivalent Na(1), one Cr(1), and one C(1) atom to form distorted edge-sharing ONa2CrC trigonal pyramids. In the third O site, O(3) is bonded to two equivalent Na(1), one Cr(1), and one C(1) atom to form distorted edge-sharing ONa2CrC tetrahedra. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Na(1), one Cr(1), and one S(1) atom. In the fifth O site, O(5) is bonded in a 2-coordinate geometry to two equivalent Na(1), one Cr(1), and one S(1) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Na(1), one Cr(1), and one S(1) atom.