Sr2La3Ti2O10 crystallizes in the monoclinic Pm space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(3), one O(5), two equivalent O(11), two equivalent O(15), and two equivalent O(2) atoms. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(2), one O(4), one O(6), two equivalent O(1), two equivalent O(12), and two equivalent O(15) atoms. In the third Sr site, Sr(3) is bonded in a 9-coordinate geometry to one O(1), one O(3), one O(9), two equivalent O(11), two equivalent O(15), and two equivalent O(6) atoms. In the fourth Sr site, Sr(4) is bonded in a 9-coordinate geometry to one O(10), one O(2), one O(4), two equivalent O(12), two equivalent O(15), and two equivalent O(5) atoms. There are six inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(3), one O(7), one O(9), two equivalent O(13), two equivalent O(14), and two equivalent O(8) atoms. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(10), one O(4), one O(8), two equivalent O(13), two equivalent O(14), and two equivalent O(7) atoms. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(1), one O(5), one O(7), two equivalent O(12), two equivalent O(14), and two equivalent O(4) atoms. In the fourth La site, La(4) is bonded in a 9-coordinate geometry to one O(2), one O(6), one O(8), two equivalent O(11), two equivalent O(13), and two equivalent O(3) atoms. In the fifth La site, La(5) is bonded in a 10-coordinate geometry to one O(7), one O(9), two equivalent O(10), two equivalent O(12), two equivalent O(13), and two equivalent O(14) atoms. In the sixth La site, La(6) is bonded in a 8-coordinate geometry to one O(10), one O(8), two equivalent O(11), two equivalent O(13), and two equivalent O(9) atoms. There are four inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(1), one O(5), two equivalent O(12), and two equivalent O(15) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the second Ti site, Ti(2) is bonded to one O(2), one O(6), two equivalent O(11), and two equivalent O(15) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. In the third Ti site, Ti(3) is bonded to one O(3), one O(9), two equivalent O(11), and two equivalent O(13) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles are 5°. In the fourth Ti site, Ti(4) is bonded to one O(10), one O(4), two equivalent O(12), and two equivalent O(14) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles are 5°. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), one Sr(3), two equivalent Sr(2), one La(3), and one Ti(1) atom to form distorted OSr4LaTi octahedra that share corners with two equivalent O(12)Sr2La2Ti2 octahedra, corners with two equivalent O(1)Sr4LaTi octahedra, corners with four equivalent O(11)Sr2La2Ti2 octahedra, corners with four equivalent O(15)Sr4Ti2 octahedra,  a cornercorner with one O(5)Sr3LaTi square pyramid,  an edgeedge with one O(3)Sr2La3Ti octahedra, edges with two equivalent O(4)Sr2La3Ti octahedra, edges with two equivalent O(2)Sr4LaTi octahedra,  an edgeedge with one O(5)Sr3LaTi square pyramid, faces with two equivalent O(12)Sr2La2Ti2 octahedra, and faces with two equivalent O(15)Sr4Ti2 octahedra. The corner-sharing octahedral tilt angles range from 9-59°. In the second O site, O(2) is bonded to one Sr(2), one Sr(4), two equivalent Sr(1), one La(4), and one Ti(2) atom to form distorted OSr4LaTi octahedra that share corners with two equivalent O(11)Sr2La2Ti2 octahedra, corners with two equivalent O(2)Sr4LaTi octahedra, corners with four equivalent O(12)Sr2La2Ti2 octahedra, corners with four equivalent O(15)Sr4Ti2 octahedra,  an edgeedge with one O(4)Sr2La3Ti octahedra, edges with two equivalent O(3)Sr2La3Ti octahedra, edges with two equivalent O(1)Sr4LaTi octahedra, edges with two equivalent O(5)Sr3LaTi square pyramids, faces with two equivalent O(11)Sr2La2Ti2 octahedra, and faces with two equivalent O(15)Sr4Ti2 octahedra. The corner-sharing octahedral tilt angles range from 9-58°. In the third O site, O(3) is bonded to one Sr(1), one Sr(3), one La(1), two equivalent La(4), and one Ti(3) atom to form distorted OSr2La3Ti octahedra that share corners with two equivalent O(3)Sr2La3Ti octahedra, corners with four equivalent O(11)Sr2La2Ti2 octahedra, corners with four equivalent O(15)Sr4Ti2 octahedra,  a cornercorner with one O(5)Sr3LaTi square pyramid,  an edgeedge with one O(1)Sr4LaTi octahedra, edges with two equivalent O(2)Sr4LaTi octahedra, and faces with two equivalent O(11)Sr2La2Ti2 octahedra. The corner-sharing octahedral tilt angles range from 9-55°. In the fourth O site, O(4) is bonded to one Sr(2), one Sr(4), one La(2), two equivalent La(3), and one Ti(4) atom to form distorted OSr2La3Ti octahedra that share corners with two equivalent O(4)Sr2La3Ti octahedra, corners with four equivalent O(12)Sr2La2Ti2 octahedra, corners with four equivalent O(15)Sr4Ti2 octahedra,  an edgeedge with one O(2)Sr4LaTi octahedra, edges with two equivalent O(1)Sr4LaTi octahedra, edges with two equivalent O(5)Sr3LaTi square pyramids, and faces with two equivalent O(12)Sr2La2Ti2 octahedra. The corner-sharing octahedral tilt angles range from 9-55°. In the fifth O site, O(5) is bonded to one Sr(1), two equivalent Sr(4), one La(3), and one Ti(1) atom to form distorted OSr3LaTi square pyramids that share  a cornercorner with one O(3)Sr2La3Ti octahedra,  a cornercorner with one O(1)Sr4LaTi octahedra, corners with two equivalent O(11)Sr2La2Ti2 octahedra, corners with two equivalent O(15)Sr4Ti2 octahedra, corners with four equivalent O(12)Sr2La2Ti2 octahedra, corners with two equivalent O(5)Sr3LaTi square pyramids,  an edgeedge with one O(1)Sr4LaTi octahedra, edges with two equivalent O(12)Sr2La2Ti2 octahedra, edges with two equivalent O(4)Sr2La3Ti octahedra, edges with two equivalent O(2)Sr4LaTi octahedra, and faces with two equivalent O(15)Sr4Ti2 octahedra. The corner-sharing octahedral tilt angles range from 3-54°. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Sr(2), two equivalent Sr(3), one La(4), and one Ti(2) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one La(1), one La(3), one La(5), and two equivalent La(2) atoms. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one La(2), one La(4), one La(6), and two equivalent La(1) atoms. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Sr(3), one La(1), one La(5), two equivalent La(6), and one Ti(3) atom. In the tenth O site, O(10) is bonded in a 6-coordinate geometry to one Sr(4), one La(2), one La(6), two equivalent La(5), and one Ti(4) atom. In the eleventh O site, O(11) is bonded to one Sr(1), one Sr(3), one La(4), one La(6), one Ti(2), and one Ti(3) atom to form distorted OSr2La2Ti2 octahedra that share  a cornercorner with one O(2)Sr4LaTi octahedra,  a cornercorner with one O(15)Sr4Ti2 octahedra, corners with two equivalent O(3)Sr2La3Ti octahedra, corners with two equivalent O(1)Sr4LaTi octahedra,  a cornercorner with one O(5)Sr3LaTi square pyramid,  an edgeedge with one O(15)Sr4Ti2 octahedra,  a faceface with one O(3)Sr2La3Ti octahedra,  a faceface with one O(2)Sr4LaTi octahedra,  a faceface with one O(15)Sr4Ti2 octahedra, and faces with two equivalent O(11)Sr2La2Ti2 octahedra. The corner-sharing octahedral tilt angles range from 3-58°. In the twelfth O site, O(12) is bonded to one Sr(2), one Sr(4), one La(3), one La(5), one Ti(1), and one Ti(4) atom to form distorted OSr2La2Ti2 octahedra that share  a cornercorner with one O(1)Sr4LaTi octahedra,  a cornercorner with one O(15)Sr4Ti2 octahedra, corners with two equivalent O(4)Sr2La3Ti octahedra, corners with two equivalent O(2)Sr4LaTi octahedra, corners with two equivalent O(5)Sr3LaTi square pyramids,  an edgeedge with one O(15)Sr4Ti2 octahedra,  an edgeedge with one O(5)Sr3LaTi square pyramid,  a faceface with one O(4)Sr2La3Ti octahedra,  a faceface with one O(1)Sr4LaTi octahedra,  a faceface with one O(15)Sr4Ti2 octahedra, and faces with two equivalent O(12)Sr2La2Ti2 octahedra. The corner-sharing octahedral tilt angles range from 3-59°. In the thirteenth O site, O(13) is bonded in a 1-coordinate geometry to one La(1), one La(2), one La(4), one La(5), one La(6), and one Ti(3) atom. In the fourteenth O site, O(14) is bonded in a 1-coordinate geometry to one La(1), one La(2), one La(3), one La(5), and one Ti(4) atom. In the fifteenth O site, O(15) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Ti(1), and one Ti(2) atom to form distorted OSr4Ti2 octahedra that share  a cornercorner with one O(11)Sr2La2Ti2 octahedra,  a cornercorner with one O(12)Sr2La2Ti2 octahedra, corners with two equivalent O(3)Sr2La3Ti octahedra, corners with two equivalent O(4)Sr2La3Ti octahedra, corners with two equivalent O(1)Sr4LaTi octahedra, corners with two equivalent O(2)Sr4LaTi octahedra,  a cornercorner with one O(5)Sr3LaTi square pyramid,  an edgeedge with one O(11)Sr2La2Ti2 octahedra,  an edgeedge with one O(12)Sr2La2Ti2 octahedra,  a faceface with one O(11)Sr2La2Ti2 octahedra,  a faceface with one O(12)Sr2La2Ti2 octahedra,  a faceface with one O(1)Sr4LaTi octahedra,  a faceface with one O(2)Sr4LaTi octahedra, faces with two equivalent O(15)Sr4Ti2 octahedra, and  a faceface with one O(5)Sr3LaTi square pyramid. The corner-sharing octahedral tilt angles range from 3-55°.
Sr2La3Ti2O10 crystallizes in the monoclinic Pm space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(3), one O(5), two equivalent O(11), two equivalent O(15), and two equivalent O(2) atoms. The Sr(1)-O(1) bond length is 2.55 Å. The Sr(1)-O(3) bond length is 2.73 Å. The Sr(1)-O(5) bond length is 2.56 Å. Both Sr(1)-O(11) bond lengths are 2.84 Å. Both Sr(1)-O(15) bond lengths are 2.68 Å. Both Sr(1)-O(2) bond lengths are 2.81 Å. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(2), one O(4), one O(6), two equivalent O(1), two equivalent O(12), and two equivalent O(15) atoms. The Sr(2)-O(2) bond length is 2.54 Å. The Sr(2)-O(4) bond length is 2.73 Å. The Sr(2)-O(6) bond length is 2.56 Å. Both Sr(2)-O(1) bond lengths are 2.81 Å. Both Sr(2)-O(12) bond lengths are 2.84 Å. Both Sr(2)-O(15) bond lengths are 2.68 Å. In the third Sr site, Sr(3) is bonded in a 9-coordinate geometry to one O(1), one O(3), one O(9), two equivalent O(11), two equivalent O(15), and two equivalent O(6) atoms. The Sr(3)-O(1) bond length is 2.80 Å. The Sr(3)-O(3) bond length is 2.50 Å. The Sr(3)-O(9) bond length is 3.11 Å. Both Sr(3)-O(11) bond lengths are 2.67 Å. Both Sr(3)-O(15) bond lengths are 2.60 Å. Both Sr(3)-O(6) bond lengths are 2.82 Å. In the fourth Sr site, Sr(4) is bonded in a 9-coordinate geometry to one O(10), one O(2), one O(4), two equivalent O(12), two equivalent O(15), and two equivalent O(5) atoms. The Sr(4)-O(10) bond length is 3.11 Å. The Sr(4)-O(2) bond length is 2.80 Å. The Sr(4)-O(4) bond length is 2.51 Å. Both Sr(4)-O(12) bond lengths are 2.67 Å. Both Sr(4)-O(15) bond lengths are 2.60 Å. Both Sr(4)-O(5) bond lengths are 2.82 Å. There are six inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(3), one O(7), one O(9), two equivalent O(13), two equivalent O(14), and two equivalent O(8) atoms. The La(1)-O(3) bond length is 2.66 Å. The La(1)-O(7) bond length is 2.49 Å. The La(1)-O(9) bond length is 2.34 Å. Both La(1)-O(13) bond lengths are 2.62 Å. Both La(1)-O(14) bond lengths are 2.49 Å. Both La(1)-O(8) bond lengths are 2.89 Å. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(10), one O(4), one O(8), two equivalent O(13), two equivalent O(14), and two equivalent O(7) atoms. The La(2)-O(10) bond length is 2.35 Å. The La(2)-O(4) bond length is 2.66 Å. The La(2)-O(8) bond length is 2.49 Å. Both La(2)-O(13) bond lengths are 2.49 Å. Both La(2)-O(14) bond lengths are 2.62 Å. Both La(2)-O(7) bond lengths are 2.89 Å. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(1), one O(5), one O(7), two equivalent O(12), two equivalent O(14), and two equivalent O(4) atoms. The La(3)-O(1) bond length is 2.56 Å. The La(3)-O(5) bond length is 2.39 Å. The La(3)-O(7) bond length is 2.34 Å. Both La(3)-O(12) bond lengths are 2.70 Å. Both La(3)-O(14) bond lengths are 2.74 Å. Both La(3)-O(4) bond lengths are 2.81 Å. In the fourth La site, La(4) is bonded in a 9-coordinate geometry to one O(2), one O(6), one O(8), two equivalent O(11), two equivalent O(13), and two equivalent O(3) atoms. The La(4)-O(2) bond length is 2.56 Å. The La(4)-O(6) bond length is 2.39 Å. The La(4)-O(8) bond length is 2.34 Å. Both La(4)-O(11) bond lengths are 2.70 Å. Both La(4)-O(13) bond lengths are 2.74 Å. Both La(4)-O(3) bond lengths are 2.81 Å. In the fifth La site, La(5) is bonded in a 10-coordinate geometry to one O(7), one O(9), two equivalent O(10), two equivalent O(12), two equivalent O(13), and two equivalent O(14) atoms. The La(5)-O(7) bond length is 2.28 Å. The La(5)-O(9) bond length is 2.77 Å. Both La(5)-O(10) bond lengths are 2.82 Å. Both La(5)-O(12) bond lengths are 2.74 Å. Both La(5)-O(13) bond lengths are 3.06 Å. Both La(5)-O(14) bond lengths are 2.55 Å. In the sixth La site, La(6) is bonded in a 8-coordinate geometry to one O(10), one O(8), two equivalent O(11), two equivalent O(13), and two equivalent O(9) atoms. The La(6)-O(10) bond length is 2.78 Å. The La(6)-O(8) bond length is 2.28 Å. Both La(6)-O(11) bond lengths are 2.73 Å. Both La(6)-O(13) bond lengths are 2.55 Å. Both La(6)-O(9) bond lengths are 2.82 Å. There are four inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(1), one O(5), two equivalent O(12), and two equivalent O(15) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. The Ti(1)-O(1) bond length is 2.10 Å. The Ti(1)-O(5) bond length is 2.02 Å. Both Ti(1)-O(12) bond lengths are 2.00 Å. Both Ti(1)-O(15) bond lengths are 1.98 Å. In the second Ti site, Ti(2) is bonded to one O(2), one O(6), two equivalent O(11), and two equivalent O(15) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles range from 0-5°. The Ti(2)-O(2) bond length is 2.11 Å. The Ti(2)-O(6) bond length is 2.02 Å. Both Ti(2)-O(11) bond lengths are 2.00 Å. Both Ti(2)-O(15) bond lengths are 1.98 Å. In the third Ti site, Ti(3) is bonded to one O(3), one O(9), two equivalent O(11), and two equivalent O(13) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles are 5°. The Ti(3)-O(3) bond length is 2.11 Å. The Ti(3)-O(9) bond length is 2.00 Å. Both Ti(3)-O(11) bond lengths are 1.99 Å. Both Ti(3)-O(13) bond lengths are 1.98 Å. In the fourth Ti site, Ti(4) is bonded to one O(10), one O(4), two equivalent O(12), and two equivalent O(14) atoms to form corner-sharing TiO6 octahedra. The corner-sharing octahedral tilt angles are 5°. The Ti(4)-O(10) bond length is 2.00 Å. The Ti(4)-O(4) bond length is 2.11 Å. Both Ti(4)-O(12) bond lengths are 1.99 Å. Both Ti(4)-O(14) bond lengths are 1.97 Å. There are fifteen inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), one Sr(3), two equivalent Sr(2), one La(3), and one Ti(1) atom to form distorted OSr4LaTi octahedra that share corners with two equivalent O(12)Sr2La2Ti2 octahedra, corners with two equivalent O(1)Sr4LaTi octahedra, corners with four equivalent O(11)Sr2La2Ti2 octahedra, corners with four equivalent O(15)Sr4Ti2 octahedra,  a cornercorner with one O(5)Sr3LaTi square pyramid,  an edgeedge with one O(3)Sr2La3Ti octahedra, edges with two equivalent O(4)Sr2La3Ti octahedra, edges with two equivalent O(2)Sr4LaTi octahedra,  an edgeedge with one O(5)Sr3LaTi square pyramid, faces with two equivalent O(12)Sr2La2Ti2 octahedra, and faces with two equivalent O(15)Sr4Ti2 octahedra. The corner-sharing octahedral tilt angles range from 9-59°. In the second O site, O(2) is bonded to one Sr(2), one Sr(4), two equivalent Sr(1), one La(4), and one Ti(2) atom to form distorted OSr4LaTi octahedra that share corners with two equivalent O(11)Sr2La2Ti2 octahedra, corners with two equivalent O(2)Sr4LaTi octahedra, corners with four equivalent O(12)Sr2La2Ti2 octahedra, corners with four equivalent O(15)Sr4Ti2 octahedra,  an edgeedge with one O(4)Sr2La3Ti octahedra, edges with two equivalent O(3)Sr2La3Ti octahedra, edges with two equivalent O(1)Sr4LaTi octahedra, edges with two equivalent O(5)Sr3LaTi square pyramids, faces with two equivalent O(11)Sr2La2Ti2 octahedra, and faces with two equivalent O(15)Sr4Ti2 octahedra. The corner-sharing octahedral tilt angles range from 9-58°. In the third O site, O(3) is bonded to one Sr(1), one Sr(3), one La(1), two equivalent La(4), and one Ti(3) atom to form distorted OSr2La3Ti octahedra that share corners with two equivalent O(3)Sr2La3Ti octahedra, corners with four equivalent O(11)Sr2La2Ti2 octahedra, corners with four equivalent O(15)Sr4Ti2 octahedra,  a cornercorner with one O(5)Sr3LaTi square pyramid,  an edgeedge with one O(1)Sr4LaTi octahedra, edges with two equivalent O(2)Sr4LaTi octahedra, and faces with two equivalent O(11)Sr2La2Ti2 octahedra. The corner-sharing octahedral tilt angles range from 9-55°. In the fourth O site, O(4) is bonded to one Sr(2), one Sr(4), one La(2), two equivalent La(3), and one Ti(4) atom to form distorted OSr2La3Ti octahedra that share corners with two equivalent O(4)Sr2La3Ti octahedra, corners with four equivalent O(12)Sr2La2Ti2 octahedra, corners with four equivalent O(15)Sr4Ti2 octahedra,  an edgeedge with one O(2)Sr4LaTi octahedra, edges with two equivalent O(1)Sr4LaTi octahedra, edges with two equivalent O(5)Sr3LaTi square pyramids, and faces with two equivalent O(12)Sr2La2Ti2 octahedra. The corner-sharing octahedral tilt angles range from 9-55°. In the fifth O site, O(5) is bonded to one Sr(1), two equivalent Sr(4), one La(3), and one Ti(1) atom to form distorted OSr3LaTi square pyramids that share  a cornercorner with one O(3)Sr2La3Ti octahedra,  a cornercorner with one O(1)Sr4LaTi octahedra, corners with two equivalent O(11)Sr2La2Ti2 octahedra, corners with two equivalent O(15)Sr4Ti2 octahedra, corners with four equivalent O(12)Sr2La2Ti2 octahedra, corners with two equivalent O(5)Sr3LaTi square pyramids,  an edgeedge with one O(1)Sr4LaTi octahedra, edges with two equivalent O(12)Sr2La2Ti2 octahedra, edges with two equivalent O(4)Sr2La3Ti octahedra, edges with two equivalent O(2)Sr4LaTi octahedra, and faces with two equivalent O(15)Sr4Ti2 octahedra. The corner-sharing octahedral tilt angles range from 3-54°. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Sr(2), two equivalent Sr(3), one La(4), and one Ti(2) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one La(1), one La(3), one La(5), and two equivalent La(2) atoms. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one La(2), one La(4), one La(6), and two equivalent La(1) atoms. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Sr(3), one La(1), one La(5), two equivalent La(6), and one Ti(3) atom. In the tenth O site, O(10) is bonded in a 6-coordinate geometry to one Sr(4), one La(2), one La(6), two equivalent La(5), and one Ti(4) atom. In the eleventh O site, O(11) is bonded to one Sr(1), one Sr(3), one La(4), one La(6), one Ti(2), and one Ti(3) atom to form distorted OSr2La2Ti2 octahedra that share  a cornercorner with one O(2)Sr4LaTi octahedra,  a cornercorner with one O(15)Sr4Ti2 octahedra, corners with two equivalent O(3)Sr2La3Ti octahedra, corners with two equivalent O(1)Sr4LaTi octahedra,  a cornercorner with one O(5)Sr3LaTi square pyramid,  an edgeedge with one O(15)Sr4Ti2 octahedra,  a faceface with one O(3)Sr2La3Ti octahedra,  a faceface with one O(2)Sr4LaTi octahedra,  a faceface with one O(15)Sr4Ti2 octahedra, and faces with two equivalent O(11)Sr2La2Ti2 octahedra. The corner-sharing octahedral tilt angles range from 3-58°. In the twelfth O site, O(12) is bonded to one Sr(2), one Sr(4), one La(3), one La(5), one Ti(1), and one Ti(4) atom to form distorted OSr2La2Ti2 octahedra that share  a cornercorner with one O(1)Sr4LaTi octahedra,  a cornercorner with one O(15)Sr4Ti2 octahedra, corners with two equivalent O(4)Sr2La3Ti octahedra, corners with two equivalent O(2)Sr4LaTi octahedra, corners with two equivalent O(5)Sr3LaTi square pyramids,  an edgeedge with one O(15)Sr4Ti2 octahedra,  an edgeedge with one O(5)Sr3LaTi square pyramid,  a faceface with one O(4)Sr2La3Ti octahedra,  a faceface with one O(1)Sr4LaTi octahedra,  a faceface with one O(15)Sr4Ti2 octahedra, and faces with two equivalent O(12)Sr2La2Ti2 octahedra. The corner-sharing octahedral tilt angles range from 3-59°. In the thirteenth O site, O(13) is bonded in a 1-coordinate geometry to one La(1), one La(2), one La(4), one La(5), one La(6), and one Ti(3) atom. In the fourteenth O site, O(14) is bonded in a 1-coordinate geometry to one La(1), one La(2), one La(3), one La(5), and one Ti(4) atom. In the fifteenth O site, O(15) is bonded to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Ti(1), and one Ti(2) atom to form distorted OSr4Ti2 octahedra that share  a cornercorner with one O(11)Sr2La2Ti2 octahedra,  a cornercorner with one O(12)Sr2La2Ti2 octahedra, corners with two equivalent O(3)Sr2La3Ti octahedra, corners with two equivalent O(4)Sr2La3Ti octahedra, corners with two equivalent O(1)Sr4LaTi octahedra, corners with two equivalent O(2)Sr4LaTi octahedra,  a cornercorner with one O(5)Sr3LaTi square pyramid,  an edgeedge with one O(11)Sr2La2Ti2 octahedra,  an edgeedge with one O(12)Sr2La2Ti2 octahedra,  a faceface with one O(11)Sr2La2Ti2 octahedra,  a faceface with one O(12)Sr2La2Ti2 octahedra,  a faceface with one O(1)Sr4LaTi octahedra,  a faceface with one O(2)Sr4LaTi octahedra, faces with two equivalent O(15)Sr4Ti2 octahedra, and  a faceface with one O(5)Sr3LaTi square pyramid. The corner-sharing octahedral tilt angles range from 3-55°.