Sr2MgWZnO6 crystallizes in the triclinic P1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(3), one O(4), one O(6), two equivalent O(2), and two equivalent O(5) atoms. In the second Sr site, Sr(2) 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. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form MgO5 trigonal bipyramids that share corners with three equivalent W(1)O6 octahedra,  an edgeedge with one W(1)O6 octahedra, and edges with two equivalent Zn(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 8-54°. W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form WO6 octahedra that share corners with three equivalent Mg(1)O5 trigonal bipyramids, corners with three equivalent Zn(1)O5 trigonal bipyramids,  an edgeedge with one Mg(1)O5 trigonal bipyramid, and  an edgeedge with one Zn(1)O5 trigonal bipyramid. Zn(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(6) atom to form distorted ZnO5 trigonal bipyramids that share corners with three equivalent W(1)O6 octahedra,  an edgeedge with one W(1)O6 octahedra, and edges with two equivalent Mg(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 11-57°. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), one W(1), and one Zn(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Sr(2), two equivalent Sr(1), one Mg(1), one W(1), and one Zn(1) atom. In the third O site, O(3) is bonded in a distorted trigonal bipyramidal geometry to one Sr(1), one Sr(2), one Mg(1), one W(1), and one Zn(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), one W(1), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Sr(2), two equivalent Sr(1), one Mg(1), and one W(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one W(1), and one Zn(1) atom.
Sr2MgWZnO6 crystallizes in the triclinic P1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to one O(1), one O(3), one O(4), one O(6), two equivalent O(2), and two equivalent O(5) atoms. The Sr(1)-O(1) bond length is 2.57 Å. The Sr(1)-O(3) bond length is 2.61 Å. The Sr(1)-O(4) bond length is 2.58 Å. The Sr(1)-O(6) bond length is 2.45 Å. There is one shorter (2.76 Å) and one longer (3.12 Å) Sr(1)-O(2) bond length. There is one shorter (2.56 Å) and one longer (3.16 Å) Sr(1)-O(5) bond length. In the second Sr site, Sr(2) 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 Sr(2)-O(1) bond length is 2.66 Å. The Sr(2)-O(2) bond length is 2.57 Å. The Sr(2)-O(3) bond length is 2.61 Å. The Sr(2)-O(4) bond length is 2.63 Å. The Sr(2)-O(5) bond length is 2.51 Å. The Sr(2)-O(6) bond length is 2.57 Å. Mg(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(5) atom to form MgO5 trigonal bipyramids that share corners with three equivalent W(1)O6 octahedra,  an edgeedge with one W(1)O6 octahedra, and edges with two equivalent Zn(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 8-54°. The Mg(1)-O(1) bond length is 1.99 Å. The Mg(1)-O(2) bond length is 2.33 Å. The Mg(1)-O(3) bond length is 2.23 Å. The Mg(1)-O(4) bond length is 2.02 Å. The Mg(1)-O(5) bond length is 1.97 Å. W(1) is bonded to one O(1), one O(2), one O(3), one O(4), one O(5), and one O(6) atom to form WO6 octahedra that share corners with three equivalent Mg(1)O5 trigonal bipyramids, corners with three equivalent Zn(1)O5 trigonal bipyramids,  an edgeedge with one Mg(1)O5 trigonal bipyramid, and  an edgeedge with one Zn(1)O5 trigonal bipyramid. The W(1)-O(1) bond length is 2.07 Å. The W(1)-O(2) bond length is 2.13 Å. The W(1)-O(3) bond length is 2.19 Å. The W(1)-O(4) bond length is 2.19 Å. The W(1)-O(5) bond length is 2.04 Å. The W(1)-O(6) bond length is 2.06 Å. Zn(1) is bonded to one O(1), one O(2), one O(3), one O(4), and one O(6) atom to form distorted ZnO5 trigonal bipyramids that share corners with three equivalent W(1)O6 octahedra,  an edgeedge with one W(1)O6 octahedra, and edges with two equivalent Mg(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 11-57°. The Zn(1)-O(1) bond length is 2.52 Å. The Zn(1)-O(2) bond length is 2.01 Å. The Zn(1)-O(3) bond length is 2.02 Å. The Zn(1)-O(4) bond length is 2.19 Å. The Zn(1)-O(6) bond length is 1.96 Å. There are six inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), one W(1), and one Zn(1) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to one Sr(2), two equivalent Sr(1), one Mg(1), one W(1), and one Zn(1) atom. In the third O site, O(3) is bonded in a distorted trigonal bipyramidal geometry to one Sr(1), one Sr(2), one Mg(1), one W(1), and one Zn(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), one W(1), and one Zn(1) atom. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to one Sr(2), two equivalent Sr(1), one Mg(1), and one W(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one W(1), and one Zn(1) atom.