Sr9Zn3(CuO7)2 crystallizes in the triclinic P1 space group. There are nine inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(5), one O(6), two equivalent O(1), and two equivalent O(10) atoms to form SrO6 octahedra that share  a cornercorner with one Sr(6)O6 octahedra, corners with two equivalent Sr(3)O6 octahedra,  an edgeedge with one Sr(3)O6 octahedra, edges with two equivalent Sr(1)O6 octahedra, edges with two equivalent Sr(4)O6 octahedra, edges with two equivalent Sr(7)O6 octahedra, and edges with two equivalent Zn(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 3-54°. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(12), one O(2), two equivalent O(1), two equivalent O(4), and two equivalent O(7) atoms. In the third Sr site, Sr(3) is bonded to one O(12), one O(8), two equivalent O(10), and two equivalent O(7) atoms to form distorted SrO6 octahedra that share corners with two equivalent Sr(1)O6 octahedra,  a cornercorner with one Zn(1)O4 tetrahedra,  an edgeedge with one Sr(1)O6 octahedra, edges with two equivalent Sr(3)O6 octahedra, and edges with two equivalent Sr(7)O6 octahedra. The corner-sharing octahedral tilt angles are 3°. In the fourth Sr site, Sr(4) is bonded to one O(1), one O(9), two equivalent O(2), and two equivalent O(5) atoms to form distorted SrO6 octahedra that share corners with two equivalent Sr(7)O6 octahedra,  a cornercorner with one Zn(3)O4 tetrahedra,  an edgeedge with one Sr(7)O6 octahedra, edges with two equivalent Sr(1)O6 octahedra, edges with two equivalent Sr(4)O6 octahedra, and edges with two equivalent Zn(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 4°. In the fifth Sr site, Sr(5) is bonded in a 7-coordinate geometry to one O(12), one O(6), one O(9), two equivalent O(3), and two equivalent O(4) atoms. In the sixth Sr site, Sr(6) is bonded to one O(14), one O(6), two equivalent O(11), and two equivalent O(3) atoms to form SrO6 octahedra that share  a cornercorner with one Sr(1)O6 octahedra,  a cornercorner with one Sr(7)O6 octahedra, corners with two equivalent Zn(1)O4 tetrahedra, corners with two equivalent Zn(3)O4 tetrahedra, and edges with two equivalent Sr(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the seventh Sr site, Sr(7) is bonded to one O(10), one O(14), two equivalent O(5), and two equivalent O(8) atoms to form SrO6 octahedra that share  a cornercorner with one Sr(6)O6 octahedra, corners with two equivalent Sr(4)O6 octahedra,  an edgeedge with one Sr(4)O6 octahedra, edges with two equivalent Sr(1)O6 octahedra, edges with two equivalent Sr(3)O6 octahedra, edges with two equivalent Sr(7)O6 octahedra, and edges with two equivalent Zn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 4-57°. In the eighth Sr site, Sr(8) is bonded in a 6-coordinate geometry to one O(12), one O(14), two equivalent O(11), and two equivalent O(13) atoms. In the ninth Sr site, Sr(9) is bonded in a 7-coordinate geometry to one O(7), two equivalent O(13), two equivalent O(2), and two equivalent O(8) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a linear geometry to one O(10) and one O(11) atom. In the second Cu site, Cu(2) is bonded in a linear geometry to one O(3) and one O(5) atom. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(13), one O(8), and two equivalent O(14) atoms to form ZnO4 tetrahedra that share  a cornercorner with one Sr(3)O6 octahedra, corners with two equivalent Sr(6)O6 octahedra,  a cornercorner with one Zn(2)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra, and edges with two equivalent Sr(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 8-70°. In the second Zn site, Zn(2) is bonded to one O(13), one O(2), and two equivalent O(9) atoms to form ZnO4 tetrahedra that share  a cornercorner with one Zn(1)O4 tetrahedra, corners with two equivalent Zn(2)O4 tetrahedra, and edges with two equivalent Sr(4)O6 octahedra. In the third Zn site, Zn(3) is bonded to one O(1), one O(4), and two equivalent O(6) atoms to form ZnO4 tetrahedra that share  a cornercorner with one Sr(4)O6 octahedra, corners with two equivalent Sr(6)O6 octahedra, corners with two equivalent Zn(3)O4 tetrahedra, and edges with two equivalent Sr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 8-70°. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Sr(4), two equivalent Sr(1), two equivalent Sr(2), and one Zn(3) atom. In the second O site, O(2) is bonded to one Sr(2), two equivalent Sr(4), two equivalent Sr(9), and one Zn(2) atom to form distorted OSr5Zn octahedra that share corners with two equivalent O(5)Sr5Cu octahedra, corners with two equivalent O(8)Sr5Zn octahedra, corners with two equivalent O(4)Sr4Zn square pyramids,  an edgeedge with one O(5)Sr5Cu octahedra,  an edgeedge with one O(8)Sr5Zn octahedra, edges with two equivalent O(2)Sr5Zn octahedra, and edges with two equivalent O(7)Sr5 square pyramids. The corner-sharing octahedral tilt angles range from 6-11°. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Sr(5), two equivalent Sr(6), and one Cu(2) atom. In the fourth O site, O(4) is bonded to two equivalent Sr(2), two equivalent Sr(5), and one Zn(3) atom to form distorted OSr4Zn square pyramids that share corners with two equivalent O(2)Sr5Zn octahedra, corners with two equivalent O(7)Sr5 square pyramids,  an edgeedge with one O(7)Sr5 square pyramid, and edges with two equivalent O(4)Sr4Zn square pyramids. The corner-sharing octahedral tilt angles range from 45-46°. In the fifth O site, O(5) is bonded to one Sr(1), two equivalent Sr(4), two equivalent Sr(7), and one Cu(2) atom to form distorted OSr5Cu octahedra that share corners with two equivalent O(2)Sr5Zn octahedra, corners with two equivalent O(8)Sr5Zn octahedra,  an edgeedge with one O(2)Sr5Zn octahedra,  an edgeedge with one O(8)Sr5Zn octahedra, edges with two equivalent O(10)Sr5Cu octahedra, and edges with two equivalent O(5)Sr5Cu octahedra. The corner-sharing octahedral tilt angles range from 4-6°. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(5), one Sr(6), and two equivalent Zn(3) atoms. In the seventh O site, O(7) is bonded to one Sr(9), two equivalent Sr(2), and two equivalent Sr(3) atoms to form distorted OSr5 square pyramids that share corners with two equivalent O(10)Sr5Cu octahedra, corners with two equivalent O(4)Sr4Zn square pyramids,  an edgeedge with one O(10)Sr5Cu octahedra, edges with two equivalent O(2)Sr5Zn octahedra, edges with two equivalent O(8)Sr5Zn octahedra,  an edgeedge with one O(4)Sr4Zn square pyramid, and edges with two equivalent O(7)Sr5 square pyramids. The corner-sharing octahedral tilt angles range from 15-16°. In the eighth O site, O(8) is bonded to one Sr(3), two equivalent Sr(7), two equivalent Sr(9), and one Zn(1) atom to form distorted OSr5Zn octahedra that share corners with two equivalent O(5)Sr5Cu octahedra, corners with two equivalent O(2)Sr5Zn octahedra,  an edgeedge with one O(5)Sr5Cu octahedra,  an edgeedge with one O(2)Sr5Zn octahedra, edges with two equivalent O(10)Sr5Cu octahedra, edges with two equivalent O(8)Sr5Zn octahedra, and edges with two equivalent O(7)Sr5 square pyramids. The corner-sharing octahedral tilt angles range from 4-11°. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Sr(4), one Sr(5), and two equivalent Zn(2) atoms. In the tenth O site, O(10) is bonded to one Sr(7), two equivalent Sr(1), two equivalent Sr(3), and one Cu(1) atom to form distorted OSr5Cu octahedra that share corners with two equivalent O(7)Sr5 square pyramids, edges with two equivalent O(10)Sr5Cu octahedra, edges with two equivalent O(5)Sr5Cu octahedra, edges with two equivalent O(8)Sr5Zn octahedra, and  an edgeedge with one O(7)Sr5 square pyramid. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to two equivalent Sr(6), two equivalent Sr(8), and one Cu(1) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Sr(2), one Sr(3), one Sr(5), and one Sr(8) atom. In the thirteenth O site, O(13) is bonded in a 6-coordinate geometry to two equivalent Sr(8), two equivalent Sr(9), one Zn(1), and one Zn(2) atom. In the fourteenth O site, O(14) is bonded in a 5-coordinate geometry to one Sr(6), one Sr(7), one Sr(8), and two equivalent Zn(1) atoms.
Sr9Zn3(CuO7)2 crystallizes in the triclinic P1 space group. There are nine inequivalent Sr sites. In the first Sr site, Sr(1) is bonded to one O(5), one O(6), two equivalent O(1), and two equivalent O(10) atoms to form SrO6 octahedra that share  a cornercorner with one Sr(6)O6 octahedra, corners with two equivalent Sr(3)O6 octahedra,  an edgeedge with one Sr(3)O6 octahedra, edges with two equivalent Sr(1)O6 octahedra, edges with two equivalent Sr(4)O6 octahedra, edges with two equivalent Sr(7)O6 octahedra, and edges with two equivalent Zn(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 3-54°. The Sr(1)-O(5) bond length is 2.60 Å. The Sr(1)-O(6) bond length is 2.48 Å. There is one shorter (2.50 Å) and one longer (2.51 Å) Sr(1)-O(1) bond length. There is one shorter (2.68 Å) and one longer (2.69 Å) Sr(1)-O(10) bond length. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(12), one O(2), two equivalent O(1), two equivalent O(4), and two equivalent O(7) atoms. The Sr(2)-O(12) bond length is 3.16 Å. The Sr(2)-O(2) bond length is 2.90 Å. There is one shorter (2.96 Å) and one longer (3.00 Å) Sr(2)-O(1) bond length. There is one shorter (2.68 Å) and one longer (2.71 Å) Sr(2)-O(4) bond length. There is one shorter (2.57 Å) and one longer (2.60 Å) Sr(2)-O(7) bond length. In the third Sr site, Sr(3) is bonded to one O(12), one O(8), two equivalent O(10), and two equivalent O(7) atoms to form distorted SrO6 octahedra that share corners with two equivalent Sr(1)O6 octahedra,  a cornercorner with one Zn(1)O4 tetrahedra,  an edgeedge with one Sr(1)O6 octahedra, edges with two equivalent Sr(3)O6 octahedra, and edges with two equivalent Sr(7)O6 octahedra. The corner-sharing octahedral tilt angles are 3°. The Sr(3)-O(12) bond length is 2.54 Å. The Sr(3)-O(8) bond length is 2.55 Å. There is one shorter (2.83 Å) and one longer (2.85 Å) Sr(3)-O(10) bond length. There is one shorter (2.51 Å) and one longer (2.52 Å) Sr(3)-O(7) bond length. In the fourth Sr site, Sr(4) is bonded to one O(1), one O(9), two equivalent O(2), and two equivalent O(5) atoms to form distorted SrO6 octahedra that share corners with two equivalent Sr(7)O6 octahedra,  a cornercorner with one Zn(3)O4 tetrahedra,  an edgeedge with one Sr(7)O6 octahedra, edges with two equivalent Sr(1)O6 octahedra, edges with two equivalent Sr(4)O6 octahedra, and edges with two equivalent Zn(2)O4 tetrahedra. The corner-sharing octahedral tilt angles are 4°. The Sr(4)-O(1) bond length is 2.43 Å. The Sr(4)-O(9) bond length is 2.67 Å. Both Sr(4)-O(2) bond lengths are 2.52 Å. There is one shorter (2.76 Å) and one longer (2.78 Å) Sr(4)-O(5) bond length. In the fifth Sr site, Sr(5) is bonded in a 7-coordinate geometry to one O(12), one O(6), one O(9), two equivalent O(3), and two equivalent O(4) atoms. The Sr(5)-O(12) bond length is 3.18 Å. The Sr(5)-O(6) bond length is 3.00 Å. The Sr(5)-O(9) bond length is 2.47 Å. There is one shorter (2.79 Å) and one longer (2.81 Å) Sr(5)-O(3) bond length. There is one shorter (2.47 Å) and one longer (2.48 Å) Sr(5)-O(4) bond length. In the sixth Sr site, Sr(6) is bonded to one O(14), one O(6), two equivalent O(11), and two equivalent O(3) atoms to form SrO6 octahedra that share  a cornercorner with one Sr(1)O6 octahedra,  a cornercorner with one Sr(7)O6 octahedra, corners with two equivalent Zn(1)O4 tetrahedra, corners with two equivalent Zn(3)O4 tetrahedra, and edges with two equivalent Sr(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. The Sr(6)-O(14) bond length is 2.46 Å. The Sr(6)-O(6) bond length is 2.43 Å. Both Sr(6)-O(11) bond lengths are 2.64 Å. Both Sr(6)-O(3) bond lengths are 2.59 Å. In the seventh Sr site, Sr(7) is bonded to one O(10), one O(14), two equivalent O(5), and two equivalent O(8) atoms to form SrO6 octahedra that share  a cornercorner with one Sr(6)O6 octahedra, corners with two equivalent Sr(4)O6 octahedra,  an edgeedge with one Sr(4)O6 octahedra, edges with two equivalent Sr(1)O6 octahedra, edges with two equivalent Sr(3)O6 octahedra, edges with two equivalent Sr(7)O6 octahedra, and edges with two equivalent Zn(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 4-57°. The Sr(7)-O(10) bond length is 2.58 Å. The Sr(7)-O(14) bond length is 2.53 Å. There is one shorter (2.69 Å) and one longer (2.70 Å) Sr(7)-O(5) bond length. Both Sr(7)-O(8) bond lengths are 2.52 Å. In the eighth Sr site, Sr(8) is bonded in a 6-coordinate geometry to one O(12), one O(14), two equivalent O(11), and two equivalent O(13) atoms. The Sr(8)-O(12) bond length is 2.48 Å. The Sr(8)-O(14) bond length is 2.91 Å. There is one shorter (2.64 Å) and one longer (2.68 Å) Sr(8)-O(11) bond length. There is one shorter (2.51 Å) and one longer (2.52 Å) Sr(8)-O(13) bond length. In the ninth Sr site, Sr(9) is bonded in a 7-coordinate geometry to one O(7), two equivalent O(13), two equivalent O(2), and two equivalent O(8) atoms. The Sr(9)-O(7) bond length is 2.40 Å. There is one shorter (2.91 Å) and one longer (2.92 Å) Sr(9)-O(13) bond length. There is one shorter (2.65 Å) and one longer (2.66 Å) Sr(9)-O(2) bond length. There is one shorter (2.75 Å) and one longer (2.76 Å) Sr(9)-O(8) bond length. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a linear geometry to one O(10) and one O(11) atom. The Cu(1)-O(10) bond length is 1.85 Å. The Cu(1)-O(11) bond length is 1.79 Å. In the second Cu site, Cu(2) is bonded in a linear geometry to one O(3) and one O(5) atom. The Cu(2)-O(3) bond length is 1.78 Å. The Cu(2)-O(5) bond length is 1.85 Å. There are three inequivalent Zn sites. In the first Zn site, Zn(1) is bonded to one O(13), one O(8), and two equivalent O(14) atoms to form ZnO4 tetrahedra that share  a cornercorner with one Sr(3)O6 octahedra, corners with two equivalent Sr(6)O6 octahedra,  a cornercorner with one Zn(2)O4 tetrahedra, corners with two equivalent Zn(1)O4 tetrahedra, and edges with two equivalent Sr(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 8-70°. The Zn(1)-O(13) bond length is 2.00 Å. The Zn(1)-O(8) bond length is 2.04 Å. Both Zn(1)-O(14) bond lengths are 1.99 Å. In the second Zn site, Zn(2) is bonded to one O(13), one O(2), and two equivalent O(9) atoms to form ZnO4 tetrahedra that share  a cornercorner with one Zn(1)O4 tetrahedra, corners with two equivalent Zn(2)O4 tetrahedra, and edges with two equivalent Sr(4)O6 octahedra. The Zn(2)-O(13) bond length is 1.99 Å. The Zn(2)-O(2) bond length is 2.07 Å. Both Zn(2)-O(9) bond lengths are 2.02 Å. In the third Zn site, Zn(3) is bonded to one O(1), one O(4), and two equivalent O(6) atoms to form ZnO4 tetrahedra that share  a cornercorner with one Sr(4)O6 octahedra, corners with two equivalent Sr(6)O6 octahedra, corners with two equivalent Zn(3)O4 tetrahedra, and edges with two equivalent Sr(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 8-70°. The Zn(3)-O(1) bond length is 2.04 Å. The Zn(3)-O(4) bond length is 1.94 Å. Both Zn(3)-O(6) bond lengths are 2.00 Å. There are fourteen inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Sr(4), two equivalent Sr(1), two equivalent Sr(2), and one Zn(3) atom. In the second O site, O(2) is bonded to one Sr(2), two equivalent Sr(4), two equivalent Sr(9), and one Zn(2) atom to form distorted OSr5Zn octahedra that share corners with two equivalent O(5)Sr5Cu octahedra, corners with two equivalent O(8)Sr5Zn octahedra, corners with two equivalent O(4)Sr4Zn square pyramids,  an edgeedge with one O(5)Sr5Cu octahedra,  an edgeedge with one O(8)Sr5Zn octahedra, edges with two equivalent O(2)Sr5Zn octahedra, and edges with two equivalent O(7)Sr5 square pyramids. The corner-sharing octahedral tilt angles range from 6-11°. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Sr(5), two equivalent Sr(6), and one Cu(2) atom. In the fourth O site, O(4) is bonded to two equivalent Sr(2), two equivalent Sr(5), and one Zn(3) atom to form distorted OSr4Zn square pyramids that share corners with two equivalent O(2)Sr5Zn octahedra, corners with two equivalent O(7)Sr5 square pyramids,  an edgeedge with one O(7)Sr5 square pyramid, and edges with two equivalent O(4)Sr4Zn square pyramids. The corner-sharing octahedral tilt angles range from 45-46°. In the fifth O site, O(5) is bonded to one Sr(1), two equivalent Sr(4), two equivalent Sr(7), and one Cu(2) atom to form distorted OSr5Cu octahedra that share corners with two equivalent O(2)Sr5Zn octahedra, corners with two equivalent O(8)Sr5Zn octahedra,  an edgeedge with one O(2)Sr5Zn octahedra,  an edgeedge with one O(8)Sr5Zn octahedra, edges with two equivalent O(10)Sr5Cu octahedra, and edges with two equivalent O(5)Sr5Cu octahedra. The corner-sharing octahedral tilt angles range from 4-6°. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(5), one Sr(6), and two equivalent Zn(3) atoms. In the seventh O site, O(7) is bonded to one Sr(9), two equivalent Sr(2), and two equivalent Sr(3) atoms to form distorted OSr5 square pyramids that share corners with two equivalent O(10)Sr5Cu octahedra, corners with two equivalent O(4)Sr4Zn square pyramids,  an edgeedge with one O(10)Sr5Cu octahedra, edges with two equivalent O(2)Sr5Zn octahedra, edges with two equivalent O(8)Sr5Zn octahedra,  an edgeedge with one O(4)Sr4Zn square pyramid, and edges with two equivalent O(7)Sr5 square pyramids. The corner-sharing octahedral tilt angles range from 15-16°. In the eighth O site, O(8) is bonded to one Sr(3), two equivalent Sr(7), two equivalent Sr(9), and one Zn(1) atom to form distorted OSr5Zn octahedra that share corners with two equivalent O(5)Sr5Cu octahedra, corners with two equivalent O(2)Sr5Zn octahedra,  an edgeedge with one O(5)Sr5Cu octahedra,  an edgeedge with one O(2)Sr5Zn octahedra, edges with two equivalent O(10)Sr5Cu octahedra, edges with two equivalent O(8)Sr5Zn octahedra, and edges with two equivalent O(7)Sr5 square pyramids. The corner-sharing octahedral tilt angles range from 4-11°. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Sr(4), one Sr(5), and two equivalent Zn(2) atoms. In the tenth O site, O(10) is bonded to one Sr(7), two equivalent Sr(1), two equivalent Sr(3), and one Cu(1) atom to form distorted OSr5Cu octahedra that share corners with two equivalent O(7)Sr5 square pyramids, edges with two equivalent O(10)Sr5Cu octahedra, edges with two equivalent O(5)Sr5Cu octahedra, edges with two equivalent O(8)Sr5Zn octahedra, and  an edgeedge with one O(7)Sr5 square pyramid. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to two equivalent Sr(6), two equivalent Sr(8), and one Cu(1) atom. In the twelfth O site, O(12) is bonded in a distorted bent 120 degrees geometry to one Sr(2), one Sr(3), one Sr(5), and one Sr(8) atom. In the thirteenth O site, O(13) is bonded in a 6-coordinate geometry to two equivalent Sr(8), two equivalent Sr(9), one Zn(1), and one Zn(2) atom. In the fourteenth O site, O(14) is bonded in a 5-coordinate geometry to one Sr(6), one Sr(7), one Sr(8), and two equivalent Zn(1) atoms.