Zn3Se3O10 crystallizes in the triclinic P-1 space group. There are four inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(7) atoms to form corner-sharing ZnO6 octahedra. The corner-sharing octahedral tilt angles are 50°. In the second Zn site, Zn(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(8) atoms to form corner-sharing ZnO6 octahedra. The corner-sharing octahedral tilt angles are 51°. In the third Zn site, Zn(3) is bonded to one O(10), one O(4), one O(5), one O(9), and two equivalent O(3) atoms to form a mixture of distorted edge and corner-sharing ZnO6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. In the fourth Zn site, Zn(4) is bonded in a 5-coordinate geometry to one O(1), one O(6), one O(7), one O(8), and one O(9) atom. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. In the third Se site, Se(3) is bonded in a distorted trigonal non-coplanar geometry to one O(7), one O(8), and one O(9) atom. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Zn(2), one Zn(4), and one Se(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one Se(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Zn(3) and one Se(1) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Zn(2), one Zn(3), and one Se(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(3), and one Se(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Zn(4) and one Se(2) atom. In the seventh O site, O(7) is bonded in a trigonal non-coplanar geometry to one Zn(1), one Zn(4), and one Se(3) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Zn(2), one Zn(4), and one Se(3) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Zn(3), one Zn(4), and one Se(3) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one Zn(3) atom.
Zn3Se3O10 crystallizes in the triclinic P-1 space group. There are four inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to two equivalent O(2), two equivalent O(5), and two equivalent O(7) atoms to form corner-sharing ZnO6 octahedra. The corner-sharing octahedral tilt angles are 50°. Both Zn(1)-O(2) bond lengths are 2.10 Å. Both Zn(1)-O(5) bond lengths are 2.09 Å. Both Zn(1)-O(7) bond lengths are 2.18 Å. In the second Zn site, Zn(2) is bonded to two equivalent O(1), two equivalent O(4), and two equivalent O(8) atoms to form corner-sharing ZnO6 octahedra. The corner-sharing octahedral tilt angles are 51°. Both Zn(2)-O(1) bond lengths are 2.07 Å. Both Zn(2)-O(4) bond lengths are 2.16 Å. Both Zn(2)-O(8) bond lengths are 2.23 Å. In the third Zn site, Zn(3) is bonded to one O(10), one O(4), one O(5), one O(9), and two equivalent O(3) atoms to form a mixture of distorted edge and corner-sharing ZnO6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. The Zn(3)-O(10) bond length is 2.13 Å. The Zn(3)-O(4) bond length is 2.15 Å. The Zn(3)-O(5) bond length is 2.14 Å. The Zn(3)-O(9) bond length is 2.05 Å. There is one shorter (2.09 Å) and one longer (2.23 Å) Zn(3)-O(3) bond length. In the fourth Zn site, Zn(4) is bonded in a 5-coordinate geometry to one O(1), one O(6), one O(7), one O(8), and one O(9) atom. The Zn(4)-O(1) bond length is 2.09 Å. The Zn(4)-O(6) bond length is 2.01 Å. The Zn(4)-O(7) bond length is 2.03 Å. The Zn(4)-O(8) bond length is 2.09 Å. The Zn(4)-O(9) bond length is 2.34 Å. There are three inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(2), and one O(3) atom. The Se(1)-O(1) bond length is 1.75 Å. The Se(1)-O(2) bond length is 1.69 Å. The Se(1)-O(3) bond length is 1.77 Å. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. The Se(2)-O(4) bond length is 1.74 Å. The Se(2)-O(5) bond length is 1.75 Å. The Se(2)-O(6) bond length is 1.73 Å. In the third Se site, Se(3) is bonded in a distorted trigonal non-coplanar geometry to one O(7), one O(8), and one O(9) atom. The Se(3)-O(7) bond length is 1.73 Å. The Se(3)-O(8) bond length is 1.73 Å. The Se(3)-O(9) bond length is 1.74 Å. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Zn(2), one Zn(4), and one Se(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Zn(1) and one Se(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to two equivalent Zn(3) and one Se(1) atom. In the fourth O site, O(4) is bonded in a trigonal planar geometry to one Zn(2), one Zn(3), and one Se(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Zn(1), one Zn(3), and one Se(2) atom. In the sixth O site, O(6) is bonded in a bent 120 degrees geometry to one Zn(4) and one Se(2) atom. In the seventh O site, O(7) is bonded in a trigonal non-coplanar geometry to one Zn(1), one Zn(4), and one Se(3) atom. In the eighth O site, O(8) is bonded in a distorted T-shaped geometry to one Zn(2), one Zn(4), and one Se(3) atom. In the ninth O site, O(9) is bonded in a 3-coordinate geometry to one Zn(3), one Zn(4), and one Se(3) atom. In the tenth O site, O(10) is bonded in a single-bond geometry to one Zn(3) atom.