Na8PtO6 crystallizes in the triclinic P1 space group. There are eight inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one O(2), one O(3), and two equivalent O(5) atoms. In the second Na site, Na(2) is bonded in a 3-coordinate geometry to one O(2), one O(3), and two equivalent O(1) atoms. In the third Na site, Na(3) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(4), and one O(6) atom. In the fourth Na site, Na(4) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(4), and one O(5) atom. In the fifth Na site, Na(5) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(4), one O(5), and one O(6) atom. In the sixth Na site, Na(6) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(5), and one O(6) atom. In the seventh Na site, Na(7) is bonded in a 4-coordinate geometry to one O(2), one O(3), and two equivalent O(6) atoms. In the eighth Na site, Na(8) is bonded in a 3-coordinate geometry to one O(2), one O(3), and two equivalent O(4) atoms. Pt(1) is bonded to one O(1), one O(4), one O(5), one O(6), and two equivalent O(3) atoms to form corner-sharing PtO6 octahedra. The corner-sharing octahedral tilt angles are 1°. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Na(3), one Na(4), one Na(6), two equivalent Na(2), and one Pt(1) atom to form ONa5Pt octahedra that share  a cornercorner with one O(4)Na5Pt octahedra,  a cornercorner with one O(5)Na5Pt octahedra,  a cornercorner with one O(6)Na5Pt octahedra, corners with two equivalent O(1)Na5Pt octahedra,  an edgeedge with one O(4)Na5Pt octahedra,  an edgeedge with one O(5)Na5Pt octahedra,  an edgeedge with one O(6)Na5Pt octahedra, and edges with two equivalent O(3)Na4Pt2 octahedra. The corner-sharing octahedral tilt angles range from 1-25°. In the second O site, O(2) is bonded in a 8-coordinate geometry to one Na(1), one Na(2), one Na(3), one Na(4), one Na(5), one Na(6), one Na(7), and one Na(8) atom. In the third O site, O(3) is bonded to one Na(1), one Na(2), one Na(7), one Na(8), and two equivalent Pt(1) atoms to form ONa4Pt2 octahedra that share corners with two equivalent O(3)Na4Pt2 octahedra, edges with two equivalent O(1)Na5Pt octahedra, edges with two equivalent O(4)Na5Pt octahedra, edges with two equivalent O(5)Na5Pt octahedra, and edges with two equivalent O(6)Na5Pt octahedra. The corner-sharing octahedral tilt angles are 1°. In the fourth O site, O(4) is bonded to one Na(3), one Na(4), one Na(5), two equivalent Na(8), and one Pt(1) atom to form ONa5Pt octahedra that share  a cornercorner with one O(1)Na5Pt octahedra,  a cornercorner with one O(5)Na5Pt octahedra,  a cornercorner with one O(6)Na5Pt octahedra, corners with two equivalent O(4)Na5Pt octahedra,  an edgeedge with one O(1)Na5Pt octahedra,  an edgeedge with one O(5)Na5Pt octahedra,  an edgeedge with one O(6)Na5Pt octahedra, and edges with two equivalent O(3)Na4Pt2 octahedra. The corner-sharing octahedral tilt angles range from 0-26°. In the fifth O site, O(5) is bonded to one Na(4), one Na(5), one Na(6), two equivalent Na(1), and one Pt(1) atom to form ONa5Pt octahedra that share  a cornercorner with one O(1)Na5Pt octahedra,  a cornercorner with one O(4)Na5Pt octahedra,  a cornercorner with one O(6)Na5Pt octahedra, corners with two equivalent O(5)Na5Pt octahedra,  an edgeedge with one O(1)Na5Pt octahedra,  an edgeedge with one O(4)Na5Pt octahedra,  an edgeedge with one O(6)Na5Pt octahedra, and edges with two equivalent O(3)Na4Pt2 octahedra. The corner-sharing octahedral tilt angles range from 0-28°. In the sixth O site, O(6) is bonded to one Na(3), one Na(5), one Na(6), two equivalent Na(7), and one Pt(1) atom to form ONa5Pt octahedra that share  a cornercorner with one O(1)Na5Pt octahedra,  a cornercorner with one O(4)Na5Pt octahedra,  a cornercorner with one O(5)Na5Pt octahedra, corners with two equivalent O(6)Na5Pt octahedra,  an edgeedge with one O(1)Na5Pt octahedra,  an edgeedge with one O(4)Na5Pt octahedra,  an edgeedge with one O(5)Na5Pt octahedra, and edges with two equivalent O(3)Na4Pt2 octahedra. The corner-sharing octahedral tilt angles range from 1-27°.
Na8PtO6 crystallizes in the triclinic P1 space group. There are eight inequivalent Na sites. In the first Na site, Na(1) is bonded in a 4-coordinate geometry to one O(2), one O(3), and two equivalent O(5) atoms. The Na(1)-O(2) bond length is 2.75 Å. The Na(1)-O(3) bond length is 2.27 Å. There is one shorter (2.30 Å) and one longer (2.34 Å) Na(1)-O(5) bond length. In the second Na site, Na(2) is bonded in a 3-coordinate geometry to one O(2), one O(3), and two equivalent O(1) atoms. The Na(2)-O(2) bond length is 2.92 Å. The Na(2)-O(3) bond length is 2.25 Å. There is one shorter (2.29 Å) and one longer (2.32 Å) Na(2)-O(1) bond length. In the third Na site, Na(3) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(4), and one O(6) atom. The Na(3)-O(1) bond length is 2.23 Å. The Na(3)-O(2) bond length is 2.58 Å. The Na(3)-O(4) bond length is 2.32 Å. The Na(3)-O(6) bond length is 2.33 Å. In the fourth Na site, Na(4) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(4), and one O(5) atom. The Na(4)-O(1) bond length is 2.32 Å. The Na(4)-O(2) bond length is 2.54 Å. The Na(4)-O(4) bond length is 2.33 Å. The Na(4)-O(5) bond length is 2.22 Å. In the fifth Na site, Na(5) is bonded in a distorted rectangular see-saw-like geometry to one O(2), one O(4), one O(5), and one O(6) atom. The Na(5)-O(2) bond length is 2.56 Å. The Na(5)-O(4) bond length is 2.23 Å. The Na(5)-O(5) bond length is 2.33 Å. The Na(5)-O(6) bond length is 2.32 Å. In the sixth Na site, Na(6) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(2), one O(5), and one O(6) atom. The Na(6)-O(1) bond length is 2.33 Å. The Na(6)-O(2) bond length is 2.52 Å. The Na(6)-O(5) bond length is 2.32 Å. The Na(6)-O(6) bond length is 2.23 Å. In the seventh Na site, Na(7) is bonded in a 4-coordinate geometry to one O(2), one O(3), and two equivalent O(6) atoms. The Na(7)-O(2) bond length is 2.78 Å. The Na(7)-O(3) bond length is 2.26 Å. There is one shorter (2.30 Å) and one longer (2.33 Å) Na(7)-O(6) bond length. In the eighth Na site, Na(8) is bonded in a 3-coordinate geometry to one O(2), one O(3), and two equivalent O(4) atoms. The Na(8)-O(2) bond length is 2.91 Å. The Na(8)-O(3) bond length is 2.27 Å. There is one shorter (2.30 Å) and one longer (2.32 Å) Na(8)-O(4) bond length. Pt(1) is bonded to one O(1), one O(4), one O(5), one O(6), and two equivalent O(3) atoms to form corner-sharing PtO6 octahedra. The corner-sharing octahedral tilt angles are 1°. The Pt(1)-O(1) bond length is 2.06 Å. The Pt(1)-O(4) bond length is 2.07 Å. The Pt(1)-O(5) bond length is 2.07 Å. The Pt(1)-O(6) bond length is 2.06 Å. There is one shorter (2.24 Å) and one longer (2.26 Å) Pt(1)-O(3) bond length. There are six inequivalent O sites. In the first O site, O(1) is bonded to one Na(3), one Na(4), one Na(6), two equivalent Na(2), and one Pt(1) atom to form ONa5Pt octahedra that share  a cornercorner with one O(4)Na5Pt octahedra,  a cornercorner with one O(5)Na5Pt octahedra,  a cornercorner with one O(6)Na5Pt octahedra, corners with two equivalent O(1)Na5Pt octahedra,  an edgeedge with one O(4)Na5Pt octahedra,  an edgeedge with one O(5)Na5Pt octahedra,  an edgeedge with one O(6)Na5Pt octahedra, and edges with two equivalent O(3)Na4Pt2 octahedra. The corner-sharing octahedral tilt angles range from 1-25°. In the second O site, O(2) is bonded in a 8-coordinate geometry to one Na(1), one Na(2), one Na(3), one Na(4), one Na(5), one Na(6), one Na(7), and one Na(8) atom. In the third O site, O(3) is bonded to one Na(1), one Na(2), one Na(7), one Na(8), and two equivalent Pt(1) atoms to form ONa4Pt2 octahedra that share corners with two equivalent O(3)Na4Pt2 octahedra, edges with two equivalent O(1)Na5Pt octahedra, edges with two equivalent O(4)Na5Pt octahedra, edges with two equivalent O(5)Na5Pt octahedra, and edges with two equivalent O(6)Na5Pt octahedra. The corner-sharing octahedral tilt angles are 1°. In the fourth O site, O(4) is bonded to one Na(3), one Na(4), one Na(5), two equivalent Na(8), and one Pt(1) atom to form ONa5Pt octahedra that share  a cornercorner with one O(1)Na5Pt octahedra,  a cornercorner with one O(5)Na5Pt octahedra,  a cornercorner with one O(6)Na5Pt octahedra, corners with two equivalent O(4)Na5Pt octahedra,  an edgeedge with one O(1)Na5Pt octahedra,  an edgeedge with one O(5)Na5Pt octahedra,  an edgeedge with one O(6)Na5Pt octahedra, and edges with two equivalent O(3)Na4Pt2 octahedra. The corner-sharing octahedral tilt angles range from 0-26°. In the fifth O site, O(5) is bonded to one Na(4), one Na(5), one Na(6), two equivalent Na(1), and one Pt(1) atom to form ONa5Pt octahedra that share  a cornercorner with one O(1)Na5Pt octahedra,  a cornercorner with one O(4)Na5Pt octahedra,  a cornercorner with one O(6)Na5Pt octahedra, corners with two equivalent O(5)Na5Pt octahedra,  an edgeedge with one O(1)Na5Pt octahedra,  an edgeedge with one O(4)Na5Pt octahedra,  an edgeedge with one O(6)Na5Pt octahedra, and edges with two equivalent O(3)Na4Pt2 octahedra. The corner-sharing octahedral tilt angles range from 0-28°. In the sixth O site, O(6) is bonded to one Na(3), one Na(5), one Na(6), two equivalent Na(7), and one Pt(1) atom to form ONa5Pt octahedra that share  a cornercorner with one O(1)Na5Pt octahedra,  a cornercorner with one O(4)Na5Pt octahedra,  a cornercorner with one O(5)Na5Pt octahedra, corners with two equivalent O(6)Na5Pt octahedra,  an edgeedge with one O(1)Na5Pt octahedra,  an edgeedge with one O(4)Na5Pt octahedra,  an edgeedge with one O(5)Na5Pt octahedra, and edges with two equivalent O(3)Na4Pt2 octahedra. The corner-sharing octahedral tilt angles range from 1-27°.