La2Cu2O5 crystallizes in the triclinic P1 space group. There are twelve inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(29), one O(30), one O(6), two equivalent O(23), two equivalent O(4), and two equivalent O(9) atoms. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(11), one O(21), one O(29), two equivalent O(14), two equivalent O(17), and two equivalent O(3) atoms. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(10), one O(18), one O(28), two equivalent O(20), two equivalent O(27), and two equivalent O(7) atoms. In the fourth La site, La(4) is bonded in a 9-coordinate geometry to one O(23), one O(29), one O(6), two equivalent O(14), two equivalent O(30), and two equivalent O(4) atoms. In the fifth La site, La(5) is bonded in a 9-coordinate geometry to one O(22), one O(25), one O(28), two equivalent O(19), two equivalent O(27), and two equivalent O(8) atoms. In the sixth La site, La(6) is bonded in a 9-coordinate geometry to one O(10), one O(27), one O(28), two equivalent O(18), two equivalent O(22), and two equivalent O(7) atoms. In the seventh La site, La(7) is bonded in a 9-coordinate geometry to one O(19), one O(25), one O(28), two equivalent O(12), two equivalent O(22), and two equivalent O(8) atoms. In the eighth La site, La(8) is bonded in a 9-coordinate geometry to one O(13), one O(26), one O(6), two equivalent O(16), two equivalent O(5), and two equivalent O(9) atoms. In the ninth La site, La(9) is bonded in a 9-coordinate geometry to one O(13), one O(6), one O(9), two equivalent O(26), two equivalent O(30), and two equivalent O(5) atoms. In the tenth La site, La(10) is bonded in a 9-coordinate geometry to one O(11), one O(14), one O(29), two equivalent O(17), two equivalent O(21), and two equivalent O(23) atoms. In the eleventh La site, La(11) is bonded in a 9-coordinate geometry to one O(10), one O(20), one O(24), two equivalent O(1), two equivalent O(18), and two equivalent O(2) atoms. In the twelfth La site, La(12) is bonded in a 8-coordinate geometry to one O(1), one O(10), two equivalent O(15), two equivalent O(2), and two equivalent O(20) atoms. There are twelve inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(14), one O(17), one O(23), one O(4), and two equivalent O(29) atoms to form distorted corner-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles range from 1-2°. In the second Cu site, Cu(2) is bonded in a 4-coordinate geometry to one O(16), one O(24), one O(5), and two equivalent O(13) atoms. In the third Cu site, Cu(3) is bonded in a rectangular see-saw-like geometry to one O(11), one O(12), one O(21), and one O(3) atom. In the fourth Cu site, Cu(4) is bonded in a rectangular see-saw-like geometry to one O(1), one O(15), one O(16), and one O(24) atom. In the fifth Cu site, Cu(5) is bonded in a rectangular see-saw-like geometry to one O(12), one O(19), one O(25), and one O(3) atom. In the sixth Cu site, Cu(6) is bonded to one O(18), one O(2), one O(20), one O(7), and two equivalent O(10) atoms to form distorted corner-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. In the seventh Cu site, Cu(7) is bonded to one O(30), one O(4), one O(5), one O(9), and two equivalent O(6) atoms to form corner-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles range from 1-2°. In the eighth Cu site, Cu(8) is bonded in a 4-coordinate geometry to one O(17), one O(25), one O(3), and two equivalent O(11) atoms. In the ninth Cu site, Cu(9) is bonded to one O(22), one O(27), one O(7), one O(8), and two equivalent O(28) atoms to form distorted corner-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. In the tenth Cu site, Cu(10) is bonded in a 4-coordinate geometry to one O(11), one O(12), one O(8), and two equivalent O(25) atoms. In the eleventh Cu site, Cu(11) is bonded in a 4-coordinate geometry to one O(13), one O(15), one O(2), and two equivalent O(24) atoms. In the twelfth Cu site, Cu(12) is bonded in a rectangular see-saw-like geometry to one O(13), one O(15), one O(16), and one O(26) atom. There are thirty inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one La(12), two equivalent La(11), and one Cu(4) atom. In the second O site, O(2) is bonded to two equivalent La(11), two equivalent La(12), one Cu(11), and one Cu(6) atom to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(7)La4Cu2 octahedra, corners with two equivalent O(18)La5Cu octahedra, corners with two equivalent O(15)La2Cu3 trigonal bipyramids, edges with two equivalent O(2)La4Cu2 octahedra,  a faceface with one O(18)La5Cu octahedra, faces with two equivalent O(10)La4Cu2 octahedra, and  a faceface with one O(15)La2Cu3 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 1-50°. In the third O site, O(3) is bonded to two equivalent La(2), one Cu(3), one Cu(5), and one Cu(8) atom to form distorted OLa2Cu3 trigonal bipyramids that share corners with two equivalent O(17)La4Cu2 octahedra, corners with two equivalent O(29)La4Cu2 octahedra, corners with two equivalent O(3)La2Cu3 trigonal bipyramids,  an edgeedge with one O(12)La2Cu3 trigonal bipyramid, and  a faceface with one O(17)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 44-53°. In the fourth O site, O(4) is bonded to two equivalent La(1), two equivalent La(4), one Cu(1), and one Cu(7) atom to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(17)La4Cu2 octahedra,  a cornercorner with one O(5)La4Cu2 octahedra, corners with four equivalent O(23)La5Cu octahedra, corners with four equivalent O(30)La5Cu octahedra, edges with two equivalent O(4)La4Cu2 octahedra,  a faceface with one O(23)La5Cu octahedra,  a faceface with one O(30)La5Cu octahedra, faces with two equivalent O(29)La4Cu2 octahedra, and faces with two equivalent O(6)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 2-50°. In the fifth O site, O(5) is bonded to two equivalent La(8), two equivalent La(9), one Cu(2), and one Cu(7) atom to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(4)La4Cu2 octahedra, corners with two equivalent O(30)La5Cu octahedra, corners with two equivalent O(16)La2Cu3 trigonal bipyramids, edges with two equivalent O(5)La4Cu2 octahedra,  a faceface with one O(30)La5Cu octahedra, faces with two equivalent O(6)La4Cu2 octahedra, and  a faceface with one O(16)La2Cu3 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 3-50°. In the sixth O site, O(6) is bonded to one La(1), one La(4), one La(8), one La(9), and two equivalent Cu(7) atoms to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(30)La5Cu octahedra, corners with two equivalent O(6)La4Cu2 octahedra, corners with three equivalent O(23)La5Cu octahedra, corners with two equivalent O(16)La2Cu3 trigonal bipyramids,  an edgeedge with one O(29)La4Cu2 octahedra, faces with two equivalent O(4)La4Cu2 octahedra, faces with two equivalent O(5)La4Cu2 octahedra, and faces with two equivalent O(30)La5Cu octahedra. The corner-sharing octahedral tilt angles range from 1-51°. In the seventh O site, O(7) is bonded to two equivalent La(3), two equivalent La(6), one Cu(6), and one Cu(9) atom to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(2)La4Cu2 octahedra,  a cornercorner with one O(8)La4Cu2 octahedra, corners with four equivalent O(18)La5Cu octahedra, corners with four equivalent O(27)La5Cu octahedra, edges with two equivalent O(7)La4Cu2 octahedra,  a faceface with one O(18)La5Cu octahedra,  a faceface with one O(27)La5Cu octahedra, faces with two equivalent O(10)La4Cu2 octahedra, and faces with two equivalent O(28)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 1-49°. In the eighth O site, O(8) is bonded to two equivalent La(5), two equivalent La(7), one Cu(10), and one Cu(9) atom to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(7)La4Cu2 octahedra, corners with two equivalent O(27)La5Cu octahedra, corners with two equivalent O(12)La2Cu3 trigonal bipyramids, edges with two equivalent O(8)La4Cu2 octahedra,  a faceface with one O(27)La5Cu octahedra, faces with two equivalent O(28)La4Cu2 octahedra, and  a faceface with one O(12)La2Cu3 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 1-50°. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one La(9), two equivalent La(1), two equivalent La(8), and one Cu(7) atom. In the tenth O site, O(10) is bonded to one La(11), one La(12), one La(3), one La(6), and two equivalent Cu(6) atoms to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(18)La5Cu octahedra, corners with two equivalent O(10)La4Cu2 octahedra, corners with three equivalent O(27)La5Cu octahedra, corners with two equivalent O(15)La2Cu3 trigonal bipyramids,  an edgeedge with one O(28)La4Cu2 octahedra, faces with two equivalent O(2)La4Cu2 octahedra, faces with two equivalent O(7)La4Cu2 octahedra, and faces with two equivalent O(18)La5Cu octahedra. The corner-sharing octahedral tilt angles range from 1-50°. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one La(10), one La(2), one Cu(10), one Cu(3), and two equivalent Cu(8) atoms. In the twelfth O site, O(12) is bonded to two equivalent La(7), one Cu(10), one Cu(3), and one Cu(5) atom to form distorted OLa2Cu3 trigonal bipyramids that share corners with two equivalent O(28)La4Cu2 octahedra, corners with two equivalent O(8)La4Cu2 octahedra, corners with two equivalent O(12)La2Cu3 trigonal bipyramids,  an edgeedge with one O(3)La2Cu3 trigonal bipyramid, and  a faceface with one O(8)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 44-54°. In the thirteenth O site, O(13) is bonded in a distorted rectangular see-saw-like geometry to one La(8), one La(9), one Cu(11), one Cu(12), and two equivalent Cu(2) atoms. In the fourteenth O site, O(14) is bonded in a 6-coordinate geometry to one La(10), two equivalent La(2), two equivalent La(4), and one Cu(1) atom. In the fifteenth O site, O(15) is bonded to two equivalent La(12), one Cu(11), one Cu(12), and one Cu(4) atom to form distorted OLa2Cu3 trigonal bipyramids that share corners with two equivalent O(10)La4Cu2 octahedra, corners with two equivalent O(2)La4Cu2 octahedra, corners with two equivalent O(15)La2Cu3 trigonal bipyramids,  an edgeedge with one O(16)La2Cu3 trigonal bipyramid, and  a faceface with one O(2)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 45-53°. In the sixteenth O site, O(16) is bonded to two equivalent La(8), one Cu(12), one Cu(2), and one Cu(4) atom to form distorted OLa2Cu3 trigonal bipyramids that share corners with two equivalent O(5)La4Cu2 octahedra, corners with two equivalent O(6)La4Cu2 octahedra, corners with two equivalent O(16)La2Cu3 trigonal bipyramids,  an edgeedge with one O(15)La2Cu3 trigonal bipyramid, and  a faceface with one O(5)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 44-54°. In the seventeenth O site, O(17) is bonded to two equivalent La(10), two equivalent La(2), one Cu(1), and one Cu(8) atom to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(4)La4Cu2 octahedra, corners with two equivalent O(23)La5Cu octahedra, corners with two equivalent O(3)La2Cu3 trigonal bipyramids, edges with two equivalent O(17)La4Cu2 octahedra,  a faceface with one O(23)La5Cu octahedra, faces with two equivalent O(29)La4Cu2 octahedra, and  a faceface with one O(3)La2Cu3 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 2-50°. In the eighteenth O site, O(18) is bonded to one La(3), two equivalent La(11), two equivalent La(6), and one Cu(6) atom to form distorted OLa5Cu octahedra that share  a cornercorner with one O(10)La4Cu2 octahedra, corners with two equivalent O(2)La4Cu2 octahedra, corners with three equivalent O(28)La4Cu2 octahedra, corners with four equivalent O(7)La4Cu2 octahedra, edges with two equivalent O(18)La5Cu octahedra, edges with two equivalent O(27)La5Cu octahedra,  a faceface with one O(2)La4Cu2 octahedra,  a faceface with one O(7)La4Cu2 octahedra, and faces with two equivalent O(10)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 45-51°. In the nineteenth O site, O(19) is bonded in a 4-coordinate geometry to one La(7), two equivalent La(5), and one Cu(5) atom. In the twentieth O site, O(20) is bonded in a 6-coordinate geometry to one La(11), two equivalent La(12), two equivalent La(3), and one Cu(6) atom. In the twenty-first O site, O(21) is bonded in a 4-coordinate geometry to one La(2), two equivalent La(10), and one Cu(3) atom. In the twenty-second O site, O(22) is bonded in a 6-coordinate geometry to one La(5), two equivalent La(6), two equivalent La(7), and one Cu(9) atom. In the twenty-third O site, O(23) is bonded to one La(4), two equivalent La(1), two equivalent La(10), and one Cu(1) atom to form distorted OLa5Cu octahedra that share  a cornercorner with one O(29)La4Cu2 octahedra, corners with two equivalent O(17)La4Cu2 octahedra, corners with three equivalent O(6)La4Cu2 octahedra, corners with four equivalent O(4)La4Cu2 octahedra, edges with two equivalent O(23)La5Cu octahedra, edges with two equivalent O(30)La5Cu octahedra,  a faceface with one O(17)La4Cu2 octahedra,  a faceface with one O(4)La4Cu2 octahedra, and faces with two equivalent O(29)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 45-51°. In the twenty-fourth O site, O(24) is bonded in a distorted rectangular see-saw-like geometry to one La(11), one Cu(2), one Cu(4), and two equivalent Cu(11) atoms. In the twenty-fifth O site, O(25) is bonded in a distorted rectangular see-saw-like geometry to one La(5), one La(7), one Cu(5), one Cu(8), and two equivalent Cu(10) atoms. In the twenty-sixth O site, O(26) is bonded in a 4-coordinate geometry to one La(8), two equivalent La(9), and one Cu(12) atom. In the twenty-seventh O site, O(27) is bonded to one La(6), two equivalent La(3), two equivalent La(5), and one Cu(9) atom to form distorted OLa5Cu octahedra that share  a cornercorner with one O(28)La4Cu2 octahedra, corners with two equivalent O(8)La4Cu2 octahedra, corners with three equivalent O(10)La4Cu2 octahedra, corners with four equivalent O(7)La4Cu2 octahedra, edges with two equivalent O(18)La5Cu octahedra, edges with two equivalent O(27)La5Cu octahedra,  a faceface with one O(7)La4Cu2 octahedra,  a faceface with one O(8)La4Cu2 octahedra, and faces with two equivalent O(28)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 45-50°. In the twenty-eighth O site, O(28) is bonded to one La(3), one La(5), one La(6), one La(7), and two equivalent Cu(9) atoms to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(27)La5Cu octahedra, corners with two equivalent O(28)La4Cu2 octahedra, corners with three equivalent O(18)La5Cu octahedra, corners with two equivalent O(12)La2Cu3 trigonal bipyramids,  an edgeedge with one O(10)La4Cu2 octahedra, faces with two equivalent O(7)La4Cu2 octahedra, faces with two equivalent O(8)La4Cu2 octahedra, and faces with two equivalent O(27)La5Cu octahedra. The corner-sharing octahedral tilt angles range from 3-51°. In the twenty-ninth O site, O(29) is bonded to one La(1), one La(10), one La(2), one La(4), and two equivalent Cu(1) atoms to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(23)La5Cu octahedra, corners with two equivalent O(29)La4Cu2 octahedra, corners with three equivalent O(30)La5Cu octahedra, corners with two equivalent O(3)La2Cu3 trigonal bipyramids,  an edgeedge with one O(6)La4Cu2 octahedra, faces with two equivalent O(17)La4Cu2 octahedra, faces with two equivalent O(4)La4Cu2 octahedra, and faces with two equivalent O(23)La5Cu octahedra. The corner-sharing octahedral tilt angles range from 1-51°. In the thirtieth O site, O(30) is bonded to one La(1), two equivalent La(4), two equivalent La(9), and one Cu(7) atom to form distorted OLa5Cu octahedra that share  a cornercorner with one O(6)La4Cu2 octahedra, corners with two equivalent O(5)La4Cu2 octahedra, corners with three equivalent O(29)La4Cu2 octahedra, corners with four equivalent O(4)La4Cu2 octahedra, edges with two equivalent O(23)La5Cu octahedra, edges with two equivalent O(30)La5Cu octahedra,  a faceface with one O(4)La4Cu2 octahedra,  a faceface with one O(5)La4Cu2 octahedra, and faces with two equivalent O(6)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 45-51°.
La2Cu2O5 crystallizes in the triclinic P1 space group. There are twelve inequivalent La sites. In the first La site, La(1) is bonded in a 9-coordinate geometry to one O(29), one O(30), one O(6), two equivalent O(23), two equivalent O(4), and two equivalent O(9) atoms. The La(1)-O(29) bond length is 2.68 Å. The La(1)-O(30) bond length is 2.38 Å. The La(1)-O(6) bond length is 2.70 Å. There is one shorter (2.68 Å) and one longer (2.73 Å) La(1)-O(23) bond length. Both La(1)-O(4) bond lengths are 2.64 Å. There is one shorter (2.60 Å) and one longer (2.70 Å) La(1)-O(9) bond length. In the second La site, La(2) is bonded in a 9-coordinate geometry to one O(11), one O(21), one O(29), two equivalent O(14), two equivalent O(17), and two equivalent O(3) atoms. The La(2)-O(11) bond length is 3.20 Å. The La(2)-O(21) bond length is 2.35 Å. The La(2)-O(29) bond length is 2.63 Å. There is one shorter (2.68 Å) and one longer (2.88 Å) La(2)-O(14) bond length. There is one shorter (2.63 Å) and one longer (2.66 Å) La(2)-O(17) bond length. There is one shorter (2.42 Å) and one longer (2.53 Å) La(2)-O(3) bond length. In the third La site, La(3) is bonded in a 9-coordinate geometry to one O(10), one O(18), one O(28), two equivalent O(20), two equivalent O(27), and two equivalent O(7) atoms. The La(3)-O(10) bond length is 2.72 Å. The La(3)-O(18) bond length is 2.37 Å. The La(3)-O(28) bond length is 2.65 Å. There is one shorter (2.61 Å) and one longer (2.69 Å) La(3)-O(20) bond length. There is one shorter (2.66 Å) and one longer (2.70 Å) La(3)-O(27) bond length. There is one shorter (2.66 Å) and one longer (2.67 Å) La(3)-O(7) bond length. In the fourth La site, La(4) is bonded in a 9-coordinate geometry to one O(23), one O(29), one O(6), two equivalent O(14), two equivalent O(30), and two equivalent O(4) atoms. The La(4)-O(23) bond length is 2.36 Å. The La(4)-O(29) bond length is 2.71 Å. The La(4)-O(6) bond length is 2.67 Å. There is one shorter (2.62 Å) and one longer (2.66 Å) La(4)-O(14) bond length. There is one shorter (2.69 Å) and one longer (2.71 Å) La(4)-O(30) bond length. There is one shorter (2.66 Å) and one longer (2.69 Å) La(4)-O(4) bond length. In the fifth La site, La(5) is bonded in a 9-coordinate geometry to one O(22), one O(25), one O(28), two equivalent O(19), two equivalent O(27), and two equivalent O(8) atoms. The La(5)-O(22) bond length is 2.37 Å. The La(5)-O(25) bond length is 2.85 Å. The La(5)-O(28) bond length is 2.63 Å. There is one shorter (2.45 Å) and one longer (2.50 Å) La(5)-O(19) bond length. There is one shorter (2.70 Å) and one longer (2.79 Å) La(5)-O(27) bond length. There is one shorter (2.62 Å) and one longer (2.82 Å) La(5)-O(8) bond length. In the sixth La site, La(6) is bonded in a 9-coordinate geometry to one O(10), one O(27), one O(28), two equivalent O(18), two equivalent O(22), and two equivalent O(7) atoms. The La(6)-O(10) bond length is 2.69 Å. The La(6)-O(27) bond length is 2.37 Å. The La(6)-O(28) bond length is 2.72 Å. There is one shorter (2.66 Å) and one longer (2.70 Å) La(6)-O(18) bond length. There is one shorter (2.61 Å) and one longer (2.68 Å) La(6)-O(22) bond length. There is one shorter (2.64 Å) and one longer (2.67 Å) La(6)-O(7) bond length. In the seventh La site, La(7) is bonded in a 9-coordinate geometry to one O(19), one O(25), one O(28), two equivalent O(12), two equivalent O(22), and two equivalent O(8) atoms. The La(7)-O(19) bond length is 2.37 Å. The La(7)-O(25) bond length is 3.17 Å. The La(7)-O(28) bond length is 2.64 Å. There is one shorter (2.42 Å) and one longer (2.53 Å) La(7)-O(12) bond length. There is one shorter (2.67 Å) and one longer (2.93 Å) La(7)-O(22) bond length. There is one shorter (2.59 Å) and one longer (2.68 Å) La(7)-O(8) bond length. In the eighth La site, La(8) is bonded in a 9-coordinate geometry to one O(13), one O(26), one O(6), two equivalent O(16), two equivalent O(5), and two equivalent O(9) atoms. The La(8)-O(13) bond length is 3.17 Å. The La(8)-O(26) bond length is 2.36 Å. The La(8)-O(6) bond length is 2.63 Å. There is one shorter (2.41 Å) and one longer (2.53 Å) La(8)-O(16) bond length. There is one shorter (2.60 Å) and one longer (2.69 Å) La(8)-O(5) bond length. There is one shorter (2.66 Å) and one longer (2.89 Å) La(8)-O(9) bond length. In the ninth La site, La(9) is bonded in a 9-coordinate geometry to one O(13), one O(6), one O(9), two equivalent O(26), two equivalent O(30), and two equivalent O(5) atoms. The La(9)-O(13) bond length is 2.82 Å. The La(9)-O(6) bond length is 2.63 Å. The La(9)-O(9) bond length is 2.38 Å. There is one shorter (2.43 Å) and one longer (2.52 Å) La(9)-O(26) bond length. There is one shorter (2.74 Å) and one longer (2.75 Å) La(9)-O(30) bond length. There is one shorter (2.64 Å) and one longer (2.77 Å) La(9)-O(5) bond length. In the tenth La site, La(10) is bonded in a 9-coordinate geometry to one O(11), one O(14), one O(29), two equivalent O(17), two equivalent O(21), and two equivalent O(23) atoms. The La(10)-O(11) bond length is 2.82 Å. The La(10)-O(14) bond length is 2.38 Å. The La(10)-O(29) bond length is 2.63 Å. There is one shorter (2.63 Å) and one longer (2.80 Å) La(10)-O(17) bond length. There is one shorter (2.43 Å) and one longer (2.52 Å) La(10)-O(21) bond length. There is one shorter (2.73 Å) and one longer (2.75 Å) La(10)-O(23) bond length. In the eleventh La site, La(11) is bonded in a 9-coordinate geometry to one O(10), one O(20), one O(24), two equivalent O(1), two equivalent O(18), and two equivalent O(2) atoms. The La(11)-O(10) bond length is 2.64 Å. The La(11)-O(20) bond length is 2.38 Å. The La(11)-O(24) bond length is 2.81 Å. There is one shorter (2.43 Å) and one longer (2.52 Å) La(11)-O(1) bond length. There is one shorter (2.70 Å) and one longer (2.81 Å) La(11)-O(18) bond length. There is one shorter (2.61 Å) and one longer (2.80 Å) La(11)-O(2) bond length. In the twelfth La site, La(12) is bonded in a 8-coordinate geometry to one O(1), one O(10), two equivalent O(15), two equivalent O(2), and two equivalent O(20) atoms. The La(12)-O(1) bond length is 2.35 Å. The La(12)-O(10) bond length is 2.59 Å. There is one shorter (2.41 Å) and one longer (2.52 Å) La(12)-O(15) bond length. There is one shorter (2.64 Å) and one longer (2.65 Å) La(12)-O(2) bond length. There is one shorter (2.69 Å) and one longer (2.86 Å) La(12)-O(20) bond length. There are twelve inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(14), one O(17), one O(23), one O(4), and two equivalent O(29) atoms to form distorted corner-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles range from 1-2°. The Cu(1)-O(14) bond length is 2.43 Å. The Cu(1)-O(17) bond length is 1.96 Å. The Cu(1)-O(23) bond length is 2.47 Å. The Cu(1)-O(4) bond length is 1.94 Å. Both Cu(1)-O(29) bond lengths are 1.88 Å. In the second Cu site, Cu(2) is bonded in a 4-coordinate geometry to one O(16), one O(24), one O(5), and two equivalent O(13) atoms. The Cu(2)-O(16) bond length is 2.53 Å. The Cu(2)-O(24) bond length is 2.06 Å. The Cu(2)-O(5) bond length is 1.95 Å. Both Cu(2)-O(13) bond lengths are 1.94 Å. In the third Cu site, Cu(3) is bonded in a rectangular see-saw-like geometry to one O(11), one O(12), one O(21), and one O(3) atom. The Cu(3)-O(11) bond length is 2.04 Å. The Cu(3)-O(12) bond length is 1.94 Å. The Cu(3)-O(21) bond length is 1.98 Å. The Cu(3)-O(3) bond length is 2.01 Å. In the fourth Cu site, Cu(4) is bonded in a rectangular see-saw-like geometry to one O(1), one O(15), one O(16), and one O(24) atom. The Cu(4)-O(1) bond length is 1.97 Å. The Cu(4)-O(15) bond length is 2.01 Å. The Cu(4)-O(16) bond length is 1.93 Å. The Cu(4)-O(24) bond length is 2.04 Å. In the fifth Cu site, Cu(5) is bonded in a rectangular see-saw-like geometry to one O(12), one O(19), one O(25), and one O(3) atom. The Cu(5)-O(12) bond length is 2.01 Å. The Cu(5)-O(19) bond length is 1.97 Å. The Cu(5)-O(25) bond length is 2.09 Å. The Cu(5)-O(3) bond length is 1.93 Å. In the sixth Cu site, Cu(6) is bonded to one O(18), one O(2), one O(20), one O(7), and two equivalent O(10) atoms to form distorted corner-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles range from 0-1°. The Cu(6)-O(18) bond length is 2.46 Å. The Cu(6)-O(2) bond length is 1.96 Å. The Cu(6)-O(20) bond length is 2.42 Å. The Cu(6)-O(7) bond length is 1.94 Å. Both Cu(6)-O(10) bond lengths are 1.88 Å. In the seventh Cu site, Cu(7) is bonded to one O(30), one O(4), one O(5), one O(9), and two equivalent O(6) atoms to form corner-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles range from 1-2°. The Cu(7)-O(30) bond length is 2.44 Å. The Cu(7)-O(4) bond length is 1.94 Å. The Cu(7)-O(5) bond length is 1.95 Å. The Cu(7)-O(9) bond length is 2.44 Å. There is one shorter (1.88 Å) and one longer (1.89 Å) Cu(7)-O(6) bond length. In the eighth Cu site, Cu(8) is bonded in a 4-coordinate geometry to one O(17), one O(25), one O(3), and two equivalent O(11) atoms. The Cu(8)-O(17) bond length is 1.95 Å. The Cu(8)-O(25) bond length is 2.05 Å. The Cu(8)-O(3) bond length is 2.55 Å. There is one shorter (1.94 Å) and one longer (1.95 Å) Cu(8)-O(11) bond length. In the ninth Cu site, Cu(9) is bonded to one O(22), one O(27), one O(7), one O(8), and two equivalent O(28) atoms to form distorted corner-sharing CuO6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. The Cu(9)-O(22) bond length is 2.41 Å. The Cu(9)-O(27) bond length is 2.48 Å. The Cu(9)-O(7) bond length is 1.93 Å. The Cu(9)-O(8) bond length is 1.95 Å. Both Cu(9)-O(28) bond lengths are 1.88 Å. In the tenth Cu site, Cu(10) is bonded in a 4-coordinate geometry to one O(11), one O(12), one O(8), and two equivalent O(25) atoms. The Cu(10)-O(11) bond length is 2.07 Å. The Cu(10)-O(12) bond length is 2.55 Å. The Cu(10)-O(8) bond length is 1.97 Å. There is one shorter (1.93 Å) and one longer (1.94 Å) Cu(10)-O(25) bond length. In the eleventh Cu site, Cu(11) is bonded in a 4-coordinate geometry to one O(13), one O(15), one O(2), and two equivalent O(24) atoms. The Cu(11)-O(13) bond length is 2.05 Å. The Cu(11)-O(15) bond length is 2.54 Å. The Cu(11)-O(2) bond length is 1.95 Å. Both Cu(11)-O(24) bond lengths are 1.95 Å. In the twelfth Cu site, Cu(12) is bonded in a rectangular see-saw-like geometry to one O(13), one O(15), one O(16), and one O(26) atom. The Cu(12)-O(13) bond length is 2.08 Å. The Cu(12)-O(15) bond length is 1.94 Å. The Cu(12)-O(16) bond length is 2.03 Å. The Cu(12)-O(26) bond length is 1.97 Å. There are thirty inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one La(12), two equivalent La(11), and one Cu(4) atom. In the second O site, O(2) is bonded to two equivalent La(11), two equivalent La(12), one Cu(11), and one Cu(6) atom to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(7)La4Cu2 octahedra, corners with two equivalent O(18)La5Cu octahedra, corners with two equivalent O(15)La2Cu3 trigonal bipyramids, edges with two equivalent O(2)La4Cu2 octahedra,  a faceface with one O(18)La5Cu octahedra, faces with two equivalent O(10)La4Cu2 octahedra, and  a faceface with one O(15)La2Cu3 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 1-50°. In the third O site, O(3) is bonded to two equivalent La(2), one Cu(3), one Cu(5), and one Cu(8) atom to form distorted OLa2Cu3 trigonal bipyramids that share corners with two equivalent O(17)La4Cu2 octahedra, corners with two equivalent O(29)La4Cu2 octahedra, corners with two equivalent O(3)La2Cu3 trigonal bipyramids,  an edgeedge with one O(12)La2Cu3 trigonal bipyramid, and  a faceface with one O(17)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 44-53°. In the fourth O site, O(4) is bonded to two equivalent La(1), two equivalent La(4), one Cu(1), and one Cu(7) atom to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(17)La4Cu2 octahedra,  a cornercorner with one O(5)La4Cu2 octahedra, corners with four equivalent O(23)La5Cu octahedra, corners with four equivalent O(30)La5Cu octahedra, edges with two equivalent O(4)La4Cu2 octahedra,  a faceface with one O(23)La5Cu octahedra,  a faceface with one O(30)La5Cu octahedra, faces with two equivalent O(29)La4Cu2 octahedra, and faces with two equivalent O(6)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 2-50°. In the fifth O site, O(5) is bonded to two equivalent La(8), two equivalent La(9), one Cu(2), and one Cu(7) atom to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(4)La4Cu2 octahedra, corners with two equivalent O(30)La5Cu octahedra, corners with two equivalent O(16)La2Cu3 trigonal bipyramids, edges with two equivalent O(5)La4Cu2 octahedra,  a faceface with one O(30)La5Cu octahedra, faces with two equivalent O(6)La4Cu2 octahedra, and  a faceface with one O(16)La2Cu3 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 3-50°. In the sixth O site, O(6) is bonded to one La(1), one La(4), one La(8), one La(9), and two equivalent Cu(7) atoms to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(30)La5Cu octahedra, corners with two equivalent O(6)La4Cu2 octahedra, corners with three equivalent O(23)La5Cu octahedra, corners with two equivalent O(16)La2Cu3 trigonal bipyramids,  an edgeedge with one O(29)La4Cu2 octahedra, faces with two equivalent O(4)La4Cu2 octahedra, faces with two equivalent O(5)La4Cu2 octahedra, and faces with two equivalent O(30)La5Cu octahedra. The corner-sharing octahedral tilt angles range from 1-51°. In the seventh O site, O(7) is bonded to two equivalent La(3), two equivalent La(6), one Cu(6), and one Cu(9) atom to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(2)La4Cu2 octahedra,  a cornercorner with one O(8)La4Cu2 octahedra, corners with four equivalent O(18)La5Cu octahedra, corners with four equivalent O(27)La5Cu octahedra, edges with two equivalent O(7)La4Cu2 octahedra,  a faceface with one O(18)La5Cu octahedra,  a faceface with one O(27)La5Cu octahedra, faces with two equivalent O(10)La4Cu2 octahedra, and faces with two equivalent O(28)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 1-49°. In the eighth O site, O(8) is bonded to two equivalent La(5), two equivalent La(7), one Cu(10), and one Cu(9) atom to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(7)La4Cu2 octahedra, corners with two equivalent O(27)La5Cu octahedra, corners with two equivalent O(12)La2Cu3 trigonal bipyramids, edges with two equivalent O(8)La4Cu2 octahedra,  a faceface with one O(27)La5Cu octahedra, faces with two equivalent O(28)La4Cu2 octahedra, and  a faceface with one O(12)La2Cu3 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 1-50°. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one La(9), two equivalent La(1), two equivalent La(8), and one Cu(7) atom. In the tenth O site, O(10) is bonded to one La(11), one La(12), one La(3), one La(6), and two equivalent Cu(6) atoms to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(18)La5Cu octahedra, corners with two equivalent O(10)La4Cu2 octahedra, corners with three equivalent O(27)La5Cu octahedra, corners with two equivalent O(15)La2Cu3 trigonal bipyramids,  an edgeedge with one O(28)La4Cu2 octahedra, faces with two equivalent O(2)La4Cu2 octahedra, faces with two equivalent O(7)La4Cu2 octahedra, and faces with two equivalent O(18)La5Cu octahedra. The corner-sharing octahedral tilt angles range from 1-50°. In the eleventh O site, O(11) is bonded in a distorted rectangular see-saw-like geometry to one La(10), one La(2), one Cu(10), one Cu(3), and two equivalent Cu(8) atoms. In the twelfth O site, O(12) is bonded to two equivalent La(7), one Cu(10), one Cu(3), and one Cu(5) atom to form distorted OLa2Cu3 trigonal bipyramids that share corners with two equivalent O(28)La4Cu2 octahedra, corners with two equivalent O(8)La4Cu2 octahedra, corners with two equivalent O(12)La2Cu3 trigonal bipyramids,  an edgeedge with one O(3)La2Cu3 trigonal bipyramid, and  a faceface with one O(8)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 44-54°. In the thirteenth O site, O(13) is bonded in a distorted rectangular see-saw-like geometry to one La(8), one La(9), one Cu(11), one Cu(12), and two equivalent Cu(2) atoms. In the fourteenth O site, O(14) is bonded in a 6-coordinate geometry to one La(10), two equivalent La(2), two equivalent La(4), and one Cu(1) atom. In the fifteenth O site, O(15) is bonded to two equivalent La(12), one Cu(11), one Cu(12), and one Cu(4) atom to form distorted OLa2Cu3 trigonal bipyramids that share corners with two equivalent O(10)La4Cu2 octahedra, corners with two equivalent O(2)La4Cu2 octahedra, corners with two equivalent O(15)La2Cu3 trigonal bipyramids,  an edgeedge with one O(16)La2Cu3 trigonal bipyramid, and  a faceface with one O(2)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 45-53°. In the sixteenth O site, O(16) is bonded to two equivalent La(8), one Cu(12), one Cu(2), and one Cu(4) atom to form distorted OLa2Cu3 trigonal bipyramids that share corners with two equivalent O(5)La4Cu2 octahedra, corners with two equivalent O(6)La4Cu2 octahedra, corners with two equivalent O(16)La2Cu3 trigonal bipyramids,  an edgeedge with one O(15)La2Cu3 trigonal bipyramid, and  a faceface with one O(5)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 44-54°. In the seventeenth O site, O(17) is bonded to two equivalent La(10), two equivalent La(2), one Cu(1), and one Cu(8) atom to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(4)La4Cu2 octahedra, corners with two equivalent O(23)La5Cu octahedra, corners with two equivalent O(3)La2Cu3 trigonal bipyramids, edges with two equivalent O(17)La4Cu2 octahedra,  a faceface with one O(23)La5Cu octahedra, faces with two equivalent O(29)La4Cu2 octahedra, and  a faceface with one O(3)La2Cu3 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 2-50°. In the eighteenth O site, O(18) is bonded to one La(3), two equivalent La(11), two equivalent La(6), and one Cu(6) atom to form distorted OLa5Cu octahedra that share  a cornercorner with one O(10)La4Cu2 octahedra, corners with two equivalent O(2)La4Cu2 octahedra, corners with three equivalent O(28)La4Cu2 octahedra, corners with four equivalent O(7)La4Cu2 octahedra, edges with two equivalent O(18)La5Cu octahedra, edges with two equivalent O(27)La5Cu octahedra,  a faceface with one O(2)La4Cu2 octahedra,  a faceface with one O(7)La4Cu2 octahedra, and faces with two equivalent O(10)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 45-51°. In the nineteenth O site, O(19) is bonded in a 4-coordinate geometry to one La(7), two equivalent La(5), and one Cu(5) atom. In the twentieth O site, O(20) is bonded in a 6-coordinate geometry to one La(11), two equivalent La(12), two equivalent La(3), and one Cu(6) atom. In the twenty-first O site, O(21) is bonded in a 4-coordinate geometry to one La(2), two equivalent La(10), and one Cu(3) atom. In the twenty-second O site, O(22) is bonded in a 6-coordinate geometry to one La(5), two equivalent La(6), two equivalent La(7), and one Cu(9) atom. In the twenty-third O site, O(23) is bonded to one La(4), two equivalent La(1), two equivalent La(10), and one Cu(1) atom to form distorted OLa5Cu octahedra that share  a cornercorner with one O(29)La4Cu2 octahedra, corners with two equivalent O(17)La4Cu2 octahedra, corners with three equivalent O(6)La4Cu2 octahedra, corners with four equivalent O(4)La4Cu2 octahedra, edges with two equivalent O(23)La5Cu octahedra, edges with two equivalent O(30)La5Cu octahedra,  a faceface with one O(17)La4Cu2 octahedra,  a faceface with one O(4)La4Cu2 octahedra, and faces with two equivalent O(29)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 45-51°. In the twenty-fourth O site, O(24) is bonded in a distorted rectangular see-saw-like geometry to one La(11), one Cu(2), one Cu(4), and two equivalent Cu(11) atoms. In the twenty-fifth O site, O(25) is bonded in a distorted rectangular see-saw-like geometry to one La(5), one La(7), one Cu(5), one Cu(8), and two equivalent Cu(10) atoms. In the twenty-sixth O site, O(26) is bonded in a 4-coordinate geometry to one La(8), two equivalent La(9), and one Cu(12) atom. In the twenty-seventh O site, O(27) is bonded to one La(6), two equivalent La(3), two equivalent La(5), and one Cu(9) atom to form distorted OLa5Cu octahedra that share  a cornercorner with one O(28)La4Cu2 octahedra, corners with two equivalent O(8)La4Cu2 octahedra, corners with three equivalent O(10)La4Cu2 octahedra, corners with four equivalent O(7)La4Cu2 octahedra, edges with two equivalent O(18)La5Cu octahedra, edges with two equivalent O(27)La5Cu octahedra,  a faceface with one O(7)La4Cu2 octahedra,  a faceface with one O(8)La4Cu2 octahedra, and faces with two equivalent O(28)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 45-50°. In the twenty-eighth O site, O(28) is bonded to one La(3), one La(5), one La(6), one La(7), and two equivalent Cu(9) atoms to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(27)La5Cu octahedra, corners with two equivalent O(28)La4Cu2 octahedra, corners with three equivalent O(18)La5Cu octahedra, corners with two equivalent O(12)La2Cu3 trigonal bipyramids,  an edgeedge with one O(10)La4Cu2 octahedra, faces with two equivalent O(7)La4Cu2 octahedra, faces with two equivalent O(8)La4Cu2 octahedra, and faces with two equivalent O(27)La5Cu octahedra. The corner-sharing octahedral tilt angles range from 3-51°. In the twenty-ninth O site, O(29) is bonded to one La(1), one La(10), one La(2), one La(4), and two equivalent Cu(1) atoms to form distorted OLa4Cu2 octahedra that share  a cornercorner with one O(23)La5Cu octahedra, corners with two equivalent O(29)La4Cu2 octahedra, corners with three equivalent O(30)La5Cu octahedra, corners with two equivalent O(3)La2Cu3 trigonal bipyramids,  an edgeedge with one O(6)La4Cu2 octahedra, faces with two equivalent O(17)La4Cu2 octahedra, faces with two equivalent O(4)La4Cu2 octahedra, and faces with two equivalent O(23)La5Cu octahedra. The corner-sharing octahedral tilt angles range from 1-51°. In the thirtieth O site, O(30) is bonded to one La(1), two equivalent La(4), two equivalent La(9), and one Cu(7) atom to form distorted OLa5Cu octahedra that share  a cornercorner with one O(6)La4Cu2 octahedra, corners with two equivalent O(5)La4Cu2 octahedra, corners with three equivalent O(29)La4Cu2 octahedra, corners with four equivalent O(4)La4Cu2 octahedra, edges with two equivalent O(23)La5Cu octahedra, edges with two equivalent O(30)La5Cu octahedra,  a faceface with one O(4)La4Cu2 octahedra,  a faceface with one O(5)La4Cu2 octahedra, and faces with two equivalent O(6)La4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 45-51°.