Sr3Te4O11 crystallizes in the triclinic P1 space group. There are six inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(19), one O(2), one O(21), one O(22), one O(3), one O(7), and one O(8) atom. In the second Sr site, Sr(2) is bonded in a 7-coordinate geometry to one O(1), one O(12), one O(18), one O(2), one O(3), one O(6), and one O(7) atom. In the third Sr site, Sr(3) is bonded to one O(11), one O(13), one O(14), one O(15), one O(16), one O(20), and one O(5) atom to form distorted edge-sharing SrO7 pentagonal bipyramids. In the fourth Sr site, Sr(4) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(17), one O(18), one O(19), one O(21), and one O(6) atom. In the fifth Sr site, Sr(5) is bonded to one O(13), one O(14), one O(15), one O(16), one O(22), one O(4), and one O(7) atom to form distorted edge-sharing SrO7 pentagonal bipyramids. In the sixth Sr site, Sr(6) is bonded in a 9-coordinate geometry to one O(1), one O(11), one O(12), one O(17), one O(19), one O(2), one O(21), one O(5), and one O(9) atom. There are eight inequivalent Te sites. In the first Te site, Te(1) is bonded in a 3-coordinate geometry to one O(10), one O(16), and one O(17) atom. In the second Te site, Te(2) is bonded in a rectangular see-saw-like geometry to one O(18), one O(19), one O(20), and one O(9) atom. In the third Te site, Te(3) is bonded in a distorted see-saw-like geometry to one O(1), one O(10), one O(4), and one O(5) atom. In the fourth Te site, Te(4) is bonded in a 3-coordinate geometry to one O(12), one O(15), and one O(3) atom. In the fifth Te site, Te(5) is bonded in a distorted see-saw-like geometry to one O(12), one O(20), one O(21), and one O(22) atom. In the sixth Te site, Te(6) is bonded in a 3-coordinate geometry to one O(11), one O(14), and one O(8) atom. In the seventh Te site, Te(7) is bonded in a 3-coordinate geometry to one O(13), one O(7), and one O(9) atom. In the eighth Te site, Te(8) is bonded in a rectangular see-saw-like geometry to one O(2), one O(4), one O(6), and one O(8) atom. There are twenty-two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Sr(6), and one Te(3) atom. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Sr(6), and one Te(8) atom to form distorted edge-sharing OSr3Te tetrahedra. In the third O site, O(3) is bonded in a 1-coordinate geometry to one Sr(1), one Sr(2), and one Te(4) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Sr(5), one Te(3), and one Te(8) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Sr(3), one Sr(6), and one Te(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Sr(2), one Sr(4), and one Te(8) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Sr(5), and one Te(7) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Sr(1), one Te(6), and one Te(8) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Sr(6), one Te(2), and one Te(7) atom. In the tenth O site, O(10) is bonded in a distorted see-saw-like geometry to one Sr(1), one Sr(4), one Te(1), and one Te(3) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Sr(6), and one Te(6) atom. In the twelfth O site, O(12) is bonded in a distorted see-saw-like geometry to one Sr(2), one Sr(6), one Te(4), and one Te(5) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one Sr(3), one Sr(5), and one Te(7) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal non-coplanar geometry to one Sr(3), one Sr(5), and one Te(6) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Sr(3), one Sr(5), and one Te(4) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Sr(3), one Sr(5), and one Te(1) atom. In the seventeenth O site, O(17) is bonded in a 1-coordinate geometry to one Sr(4), one Sr(6), and one Te(1) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one Sr(2), one Sr(4), and one Te(2) atom. In the nineteenth O site, O(19) is bonded to one Sr(1), one Sr(4), one Sr(6), and one Te(2) atom to form distorted edge-sharing OSr3Te tetrahedra. In the twentieth O site, O(20) is bonded in a distorted trigonal planar geometry to one Sr(3), one Te(2), and one Te(5) atom. In the twenty-first O site, O(21) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(4), one Sr(6), and one Te(5) atom. In the twenty-second O site, O(22) is bonded in a distorted trigonal planar geometry to one Sr(1), one Sr(5), and one Te(5) atom.
Sr3Te4O11 crystallizes in the triclinic P1 space group. There are six inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(10), one O(19), one O(2), one O(21), one O(22), one O(3), one O(7), and one O(8) atom. The Sr(1)-O(1) bond length is 2.56 Å. The Sr(1)-O(10) bond length is 2.66 Å. The Sr(1)-O(19) bond length is 2.60 Å. The Sr(1)-O(2) bond length is 2.65 Å. The Sr(1)-O(21) bond length is 2.98 Å. The Sr(1)-O(22) bond length is 2.55 Å. The Sr(1)-O(3) bond length is 2.68 Å. The Sr(1)-O(7) bond length is 2.77 Å. The Sr(1)-O(8) bond length is 2.67 Å. In the second Sr site, Sr(2) is bonded in a 7-coordinate geometry to one O(1), one O(12), one O(18), one O(2), one O(3), one O(6), and one O(7) atom. The Sr(2)-O(1) bond length is 2.48 Å. The Sr(2)-O(12) bond length is 2.64 Å. The Sr(2)-O(18) bond length is 2.45 Å. The Sr(2)-O(2) bond length is 2.77 Å. The Sr(2)-O(3) bond length is 2.72 Å. The Sr(2)-O(6) bond length is 2.58 Å. The Sr(2)-O(7) bond length is 2.57 Å. In the third Sr site, Sr(3) is bonded to one O(11), one O(13), one O(14), one O(15), one O(16), one O(20), and one O(5) atom to form distorted edge-sharing SrO7 pentagonal bipyramids. The Sr(3)-O(11) bond length is 2.64 Å. The Sr(3)-O(13) bond length is 2.56 Å. The Sr(3)-O(14) bond length is 2.71 Å. The Sr(3)-O(15) bond length is 2.62 Å. The Sr(3)-O(16) bond length is 2.54 Å. The Sr(3)-O(20) bond length is 2.76 Å. The Sr(3)-O(5) bond length is 2.48 Å. In the fourth Sr site, Sr(4) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(17), one O(18), one O(19), one O(21), and one O(6) atom. The Sr(4)-O(10) bond length is 2.64 Å. The Sr(4)-O(11) bond length is 2.57 Å. The Sr(4)-O(17) bond length is 2.72 Å. The Sr(4)-O(18) bond length is 2.58 Å. The Sr(4)-O(19) bond length is 2.77 Å. The Sr(4)-O(21) bond length is 2.48 Å. The Sr(4)-O(6) bond length is 2.45 Å. In the fifth Sr site, Sr(5) is bonded to one O(13), one O(14), one O(15), one O(16), one O(22), one O(4), and one O(7) atom to form distorted edge-sharing SrO7 pentagonal bipyramids. The Sr(5)-O(13) bond length is 2.71 Å. The Sr(5)-O(14) bond length is 2.56 Å. The Sr(5)-O(15) bond length is 2.54 Å. The Sr(5)-O(16) bond length is 2.62 Å. The Sr(5)-O(22) bond length is 2.48 Å. The Sr(5)-O(4) bond length is 2.76 Å. The Sr(5)-O(7) bond length is 2.64 Å. In the sixth Sr site, Sr(6) is bonded in a 9-coordinate geometry to one O(1), one O(11), one O(12), one O(17), one O(19), one O(2), one O(21), one O(5), and one O(9) atom. The Sr(6)-O(1) bond length is 2.97 Å. The Sr(6)-O(11) bond length is 2.77 Å. The Sr(6)-O(12) bond length is 2.66 Å. The Sr(6)-O(17) bond length is 2.68 Å. The Sr(6)-O(19) bond length is 2.66 Å. The Sr(6)-O(2) bond length is 2.60 Å. The Sr(6)-O(21) bond length is 2.56 Å. The Sr(6)-O(5) bond length is 2.55 Å. The Sr(6)-O(9) bond length is 2.67 Å. There are eight inequivalent Te sites. In the first Te site, Te(1) is bonded in a 3-coordinate geometry to one O(10), one O(16), and one O(17) atom. The Te(1)-O(10) bond length is 1.90 Å. The Te(1)-O(16) bond length is 1.87 Å. The Te(1)-O(17) bond length is 1.87 Å. In the second Te site, Te(2) is bonded in a rectangular see-saw-like geometry to one O(18), one O(19), one O(20), and one O(9) atom. The Te(2)-O(18) bond length is 1.85 Å. The Te(2)-O(19) bond length is 1.86 Å. The Te(2)-O(20) bond length is 2.08 Å. The Te(2)-O(9) bond length is 2.18 Å. In the third Te site, Te(3) is bonded in a distorted see-saw-like geometry to one O(1), one O(10), one O(4), and one O(5) atom. The Te(3)-O(1) bond length is 1.86 Å. The Te(3)-O(10) bond length is 2.51 Å. The Te(3)-O(4) bond length is 1.97 Å. The Te(3)-O(5) bond length is 1.85 Å. In the fourth Te site, Te(4) is bonded in a 3-coordinate geometry to one O(12), one O(15), and one O(3) atom. The Te(4)-O(12) bond length is 1.90 Å. The Te(4)-O(15) bond length is 1.87 Å. The Te(4)-O(3) bond length is 1.87 Å. In the fifth Te site, Te(5) is bonded in a distorted see-saw-like geometry to one O(12), one O(20), one O(21), and one O(22) atom. The Te(5)-O(12) bond length is 2.51 Å. The Te(5)-O(20) bond length is 1.97 Å. The Te(5)-O(21) bond length is 1.86 Å. The Te(5)-O(22) bond length is 1.85 Å. In the sixth Te site, Te(6) is bonded in a 3-coordinate geometry to one O(11), one O(14), and one O(8) atom. The Te(6)-O(11) bond length is 1.86 Å. The Te(6)-O(14) bond length is 1.86 Å. The Te(6)-O(8) bond length is 1.92 Å. In the seventh Te site, Te(7) is bonded in a 3-coordinate geometry to one O(13), one O(7), and one O(9) atom. The Te(7)-O(13) bond length is 1.86 Å. The Te(7)-O(7) bond length is 1.86 Å. The Te(7)-O(9) bond length is 1.92 Å. In the eighth Te site, Te(8) is bonded in a rectangular see-saw-like geometry to one O(2), one O(4), one O(6), and one O(8) atom. The Te(8)-O(2) bond length is 1.86 Å. The Te(8)-O(4) bond length is 2.08 Å. The Te(8)-O(6) bond length is 1.85 Å. The Te(8)-O(8) bond length is 2.18 Å. There are twenty-two inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Sr(6), and one Te(3) atom. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Sr(6), and one Te(8) atom to form distorted edge-sharing OSr3Te tetrahedra. In the third O site, O(3) is bonded in a 1-coordinate geometry to one Sr(1), one Sr(2), and one Te(4) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Sr(5), one Te(3), and one Te(8) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Sr(3), one Sr(6), and one Te(3) atom. In the sixth O site, O(6) is bonded in a distorted trigonal non-coplanar geometry to one Sr(2), one Sr(4), and one Te(8) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Sr(5), and one Te(7) atom. In the eighth O site, O(8) is bonded in a distorted trigonal planar geometry to one Sr(1), one Te(6), and one Te(8) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Sr(6), one Te(2), and one Te(7) atom. In the tenth O site, O(10) is bonded in a distorted see-saw-like geometry to one Sr(1), one Sr(4), one Te(1), and one Te(3) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Sr(6), and one Te(6) atom. In the twelfth O site, O(12) is bonded in a distorted see-saw-like geometry to one Sr(2), one Sr(6), one Te(4), and one Te(5) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one Sr(3), one Sr(5), and one Te(7) atom. In the fourteenth O site, O(14) is bonded in a distorted trigonal non-coplanar geometry to one Sr(3), one Sr(5), and one Te(6) atom. In the fifteenth O site, O(15) is bonded in a 3-coordinate geometry to one Sr(3), one Sr(5), and one Te(4) atom. In the sixteenth O site, O(16) is bonded in a 3-coordinate geometry to one Sr(3), one Sr(5), and one Te(1) atom. In the seventeenth O site, O(17) is bonded in a 1-coordinate geometry to one Sr(4), one Sr(6), and one Te(1) atom. In the eighteenth O site, O(18) is bonded in a distorted trigonal non-coplanar geometry to one Sr(2), one Sr(4), and one Te(2) atom. In the nineteenth O site, O(19) is bonded to one Sr(1), one Sr(4), one Sr(6), and one Te(2) atom to form distorted edge-sharing OSr3Te tetrahedra. In the twentieth O site, O(20) is bonded in a distorted trigonal planar geometry to one Sr(3), one Te(2), and one Te(5) atom. In the twenty-first O site, O(21) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(4), one Sr(6), and one Te(5) atom. In the twenty-second O site, O(22) is bonded in a distorted trigonal planar geometry to one Sr(1), one Sr(5), and one Te(5) atom.