SrLa7Ti4(Cu2O11)2 crystallizes in the monoclinic Pm space group. Sr(1) is bonded in a 7-coordinate geometry to one O(6), two equivalent O(11), two equivalent O(4), and two equivalent O(9) atoms. There are five inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(2), one O(3), one O(4), one O(5), and one O(7) atom. In the second La site, La(2) is bonded in a 8-coordinate geometry to one O(12), one O(2), one O(3), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. In the third La site, La(3) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(10), two equivalent O(5), and two equivalent O(8) atoms. In the fourth La site, La(4) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(10), two equivalent O(2), and two equivalent O(8) atoms. In the fifth La site, La(5) is bonded in a 7-coordinate geometry to one O(6), two equivalent O(11), two equivalent O(3), and two equivalent O(9) atoms. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(5), and one O(8) atom to form TiO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Cu(1)O5 square pyramid, and corners with four equivalent Cu(2)O5 square pyramids. The corner-sharing octahedral tilt angles are 31°. In the second Ti site, Ti(2) is bonded to one O(11), one O(3), one O(4), one O(6), one O(7), and one O(9) atom to form TiO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Cu(2)O5 square pyramid, and corners with four equivalent Cu(1)O5 square pyramids. The corner-sharing octahedral tilt angles are 32°. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(11), one O(12), one O(3), one O(4), and one O(9) atom to form CuO5 square pyramids that share  a cornercorner with one Ti(1)O6 octahedra and corners with four equivalent Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-32°. In the second Cu site, Cu(2) is bonded to one O(10), one O(2), one O(5), one O(7), and one O(8) atom to form CuO5 square pyramids that share  a cornercorner with one Ti(2)O6 octahedra and corners with four equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-31°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one La(3), one La(4), and two equivalent Ti(1) atoms. In the second O site, O(2) is bonded in a 5-coordinate geometry to one La(1), one La(2), one La(4), one Ti(1), and one Cu(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one La(1), one La(2), one La(5), one Ti(2), and one Cu(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(1), one La(1), one La(2), one Ti(2), and one Cu(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one La(1), one La(2), one La(3), one Ti(1), and one Cu(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(1), one La(5), and two equivalent Ti(2) atoms. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one La(1), one La(2), one Ti(2), and one Cu(2) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one La(2), one La(3), one La(4), one Ti(1), and one Cu(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Sr(1), one La(2), one La(5), one Ti(2), and one Cu(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one La(1), one La(3), one La(4), one Ti(1), and one Cu(2) atom. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to one Sr(1), one La(1), one La(5), one Ti(2), and one Cu(1) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one La(1), one La(2), one Ti(1), and one Cu(1) atom.
SrLa7Ti4(Cu2O11)2 crystallizes in the monoclinic Pm space group. Sr(1) is bonded in a 7-coordinate geometry to one O(6), two equivalent O(11), two equivalent O(4), and two equivalent O(9) atoms. The Sr(1)-O(6) bond length is 2.62 Å. Both Sr(1)-O(11) bond lengths are 2.70 Å. Both Sr(1)-O(4) bond lengths are 2.79 Å. Both Sr(1)-O(9) bond lengths are 2.47 Å. There are five inequivalent La sites. In the first La site, La(1) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(2), one O(3), one O(4), one O(5), and one O(7) atom. The La(1)-O(10) bond length is 3.00 Å. The La(1)-O(11) bond length is 2.79 Å. The La(1)-O(12) bond length is 2.54 Å. The La(1)-O(2) bond length is 2.47 Å. The La(1)-O(3) bond length is 2.47 Å. The La(1)-O(4) bond length is 2.63 Å. The La(1)-O(5) bond length is 2.72 Å. The La(1)-O(7) bond length is 2.37 Å. In the second La site, La(2) is bonded in a 8-coordinate geometry to one O(12), one O(2), one O(3), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. The La(2)-O(12) bond length is 2.36 Å. The La(2)-O(2) bond length is 2.74 Å. The La(2)-O(3) bond length is 2.62 Å. The La(2)-O(4) bond length is 2.43 Å. The La(2)-O(5) bond length is 2.50 Å. The La(2)-O(7) bond length is 2.52 Å. The La(2)-O(8) bond length is 2.94 Å. The La(2)-O(9) bond length is 2.91 Å. In the third La site, La(3) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(10), two equivalent O(5), and two equivalent O(8) atoms. The La(3)-O(1) bond length is 2.41 Å. Both La(3)-O(10) bond lengths are 2.49 Å. Both La(3)-O(5) bond lengths are 2.76 Å. Both La(3)-O(8) bond lengths are 2.37 Å. In the fourth La site, La(4) is bonded in a 7-coordinate geometry to one O(1), two equivalent O(10), two equivalent O(2), and two equivalent O(8) atoms. The La(4)-O(1) bond length is 2.55 Å. Both La(4)-O(10) bond lengths are 2.38 Å. Both La(4)-O(2) bond lengths are 2.73 Å. Both La(4)-O(8) bond lengths are 2.54 Å. In the fifth La site, La(5) is bonded in a 7-coordinate geometry to one O(6), two equivalent O(11), two equivalent O(3), and two equivalent O(9) atoms. The La(5)-O(6) bond length is 2.42 Å. Both La(5)-O(11) bond lengths are 2.40 Å. Both La(5)-O(3) bond lengths are 2.79 Å. Both La(5)-O(9) bond lengths are 2.49 Å. There are two inequivalent Ti sites. In the first Ti site, Ti(1) is bonded to one O(1), one O(10), one O(12), one O(2), one O(5), and one O(8) atom to form TiO6 octahedra that share  a cornercorner with one Ti(1)O6 octahedra,  a cornercorner with one Cu(1)O5 square pyramid, and corners with four equivalent Cu(2)O5 square pyramids. The corner-sharing octahedral tilt angles are 31°. The Ti(1)-O(1) bond length is 2.03 Å. The Ti(1)-O(10) bond length is 2.02 Å. The Ti(1)-O(12) bond length is 1.92 Å. The Ti(1)-O(2) bond length is 1.98 Å. The Ti(1)-O(5) bond length is 1.96 Å. The Ti(1)-O(8) bond length is 2.01 Å. In the second Ti site, Ti(2) is bonded to one O(11), one O(3), one O(4), one O(6), one O(7), and one O(9) atom to form TiO6 octahedra that share  a cornercorner with one Ti(2)O6 octahedra,  a cornercorner with one Cu(2)O5 square pyramid, and corners with four equivalent Cu(1)O5 square pyramids. The corner-sharing octahedral tilt angles are 32°. The Ti(2)-O(11) bond length is 1.97 Å. The Ti(2)-O(3) bond length is 2.01 Å. The Ti(2)-O(4) bond length is 2.01 Å. The Ti(2)-O(6) bond length is 2.01 Å. The Ti(2)-O(7) bond length is 1.95 Å. The Ti(2)-O(9) bond length is 1.98 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(11), one O(12), one O(3), one O(4), and one O(9) atom to form CuO5 square pyramids that share  a cornercorner with one Ti(1)O6 octahedra and corners with four equivalent Ti(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-32°. The Cu(1)-O(11) bond length is 2.09 Å. The Cu(1)-O(12) bond length is 2.19 Å. The Cu(1)-O(3) bond length is 2.10 Å. The Cu(1)-O(4) bond length is 2.12 Å. The Cu(1)-O(9) bond length is 2.08 Å. In the second Cu site, Cu(2) is bonded to one O(10), one O(2), one O(5), one O(7), and one O(8) atom to form CuO5 square pyramids that share  a cornercorner with one Ti(2)O6 octahedra and corners with four equivalent Ti(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-31°. The Cu(2)-O(10) bond length is 2.12 Å. The Cu(2)-O(2) bond length is 2.12 Å. The Cu(2)-O(5) bond length is 2.12 Å. The Cu(2)-O(7) bond length is 2.15 Å. The Cu(2)-O(8) bond length is 2.12 Å. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one La(3), one La(4), and two equivalent Ti(1) atoms. In the second O site, O(2) is bonded in a 5-coordinate geometry to one La(1), one La(2), one La(4), one Ti(1), and one Cu(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one La(1), one La(2), one La(5), one Ti(2), and one Cu(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(1), one La(1), one La(2), one Ti(2), and one Cu(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one La(1), one La(2), one La(3), one Ti(1), and one Cu(2) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(1), one La(5), and two equivalent Ti(2) atoms. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one La(1), one La(2), one Ti(2), and one Cu(2) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one La(2), one La(3), one La(4), one Ti(1), and one Cu(2) atom. In the ninth O site, O(9) is bonded in a 4-coordinate geometry to one Sr(1), one La(2), one La(5), one Ti(2), and one Cu(1) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one La(1), one La(3), one La(4), one Ti(1), and one Cu(2) atom. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to one Sr(1), one La(1), one La(5), one Ti(2), and one Cu(1) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one La(1), one La(2), one Ti(1), and one Cu(1) atom.