The structure described by Ba3Sr5Cu3Tl5O19 crystallizes in the monoclinic Pm space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to one O(19), one O(7), one O(9), two equivalent O(1), two equivalent O(11), and two equivalent O(3) atoms. In the second Ba site, Ba(2) is bonded in a 9-coordinate geometry to one O(10), one O(19), one O(8), two equivalent O(12), two equivalent O(2), and two equivalent O(4) atoms. In the third Ba site, Ba(3) is bonded in a 9-coordinate geometry to one O(10), one O(19), one O(8), two equivalent O(1), two equivalent O(12), and two equivalent O(5) atoms. There are five inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(19), one O(7), one O(9), two equivalent O(11), two equivalent O(2), and two equivalent O(6) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(17), one O(7), two equivalent O(13), two equivalent O(15), and two equivalent O(3) atoms. In the third Sr site, Sr(3) is bonded in a 8-coordinate geometry to one O(18), one O(8), two equivalent O(13), two equivalent O(16), and two equivalent O(4) atoms. In the fourth Sr site, Sr(4) is bonded in a 8-coordinate geometry to one O(18), one O(8), two equivalent O(14), two equivalent O(16), and two equivalent O(5) atoms. In the fifth Sr site, Sr(5) is bonded in a 8-coordinate geometry to one O(17), one O(7), two equivalent O(14), two equivalent O(15), and two equivalent O(6) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(11), one O(15), one O(6), and two equivalent O(7) atoms to form distorted CuO5 square pyramids that share  a cornercorner with one Cu(3)O5 square pyramid, corners with two equivalent Cu(1)O5 square pyramids, and  a cornercorner with one Tl(4)O5 trigonal bipyramid. In the second Cu site, Cu(2) is bonded in a distorted square co-planar geometry to one O(12), one O(16), one O(4), one O(5), and two equivalent O(8) atoms. In the third Cu site, Cu(3) is bonded to one O(11), one O(12), one O(2), and two equivalent O(19) atoms to form distorted corner-sharing CuO5 square pyramids. There are five inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a distorted see-saw-like geometry to one O(3), one O(6), and two equivalent O(9) atoms. In the second Tl site, Tl(2) is bonded to one O(4), one O(5), and two equivalent O(10) atoms to form distorted corner-sharing TlO4 trigonal pyramids. In the third Tl site, Tl(3) is bonded to one O(13), one O(14), one O(16), and two equivalent O(17) atoms to form corner-sharing TlO5 trigonal bipyramids. In the fourth Tl site, Tl(4) is bonded to one O(13), one O(14), one O(15), and two equivalent O(18) atoms to form TlO5 trigonal bipyramids that share  a cornercorner with one Cu(1)O5 square pyramid, corners with two equivalent Tl(3)O5 trigonal bipyramids, and corners with two equivalent Tl(4)O5 trigonal bipyramids. In the fifth Tl site, Tl(5) is bonded in a distorted linear geometry to one O(1), one O(2), and two equivalent O(9) atoms. There are nineteen inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Ba(1), two equivalent Ba(3), and one Tl(5) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to two equivalent Ba(2), two equivalent Sr(1), one Cu(3), and one Tl(5) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Ba(1), two equivalent Sr(2), and one Tl(1) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to two equivalent Ba(2), two equivalent Sr(3), one Cu(2), and one Tl(2) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to two equivalent Ba(3), two equivalent Sr(4), one Cu(2), and one Tl(2) atom. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(5), one Cu(1), and one Tl(1) atom. In the seventh O site, O(7) is bonded to one Ba(1), one Sr(1), one Sr(2), one Sr(5), and two equivalent Cu(1) atoms to form distorted OBaSr3Cu2 octahedra that share corners with two equivalent O(7)BaSr3Cu2 octahedra, corners with two equivalent O(9)BaSrTl4 octahedra, corners with two equivalent O(13)Sr4Tl2 octahedra, corners with two equivalent O(14)Sr4Tl2 octahedra,  an edgeedge with one O(19)Ba3SrCu2 octahedra, faces with two equivalent O(11)Ba2Sr2Cu2 octahedra, and faces with two equivalent O(15)Sr4TlCu octahedra. The corner-sharing octahedral tilt angles range from 7-55°. In the eighth O site, O(8) is bonded to one Ba(2), one Ba(3), one Sr(3), one Sr(4), and two equivalent Cu(2) atoms to form distorted OBa2Sr2Cu2 octahedra that share corners with two equivalent O(8)Ba2Sr2Cu2 octahedra, corners with two equivalent O(13)Sr4Tl2 octahedra, corners with two equivalent O(14)Sr4Tl2 octahedra,  an edgeedge with one O(19)Ba3SrCu2 octahedra, faces with two equivalent O(12)Ba4Cu2 octahedra, and faces with two equivalent O(16)Sr4TlCu octahedra. The corner-sharing octahedral tilt angles range from 8-55°. In the ninth O site, O(9) is bonded to one Ba(1), one Sr(1), two equivalent Tl(1), and two equivalent Tl(5) atoms to form OBaSrTl4 octahedra that share corners with two equivalent O(19)Ba3SrCu2 octahedra, corners with two equivalent O(7)BaSr3Cu2 octahedra, corners with four equivalent O(11)Ba2Sr2Cu2 octahedra, and edges with two equivalent O(9)BaSrTl4 octahedra. The corner-sharing octahedral tilt angles range from 42-48°. In the tenth O site, O(10) is bonded in a distorted rectangular see-saw-like geometry to one Ba(2), one Ba(3), and two equivalent Tl(2) atoms. In the eleventh O site, O(11) is bonded to two equivalent Ba(1), two equivalent Sr(1), one Cu(1), and one Cu(3) atom to form distorted OBa2Sr2Cu2 octahedra that share  a cornercorner with one O(12)Ba4Cu2 octahedra,  a cornercorner with one O(15)Sr4TlCu octahedra, corners with four equivalent O(9)BaSrTl4 octahedra, edges with two equivalent O(11)Ba2Sr2Cu2 octahedra, faces with two equivalent O(19)Ba3SrCu2 octahedra, and faces with two equivalent O(7)BaSr3Cu2 octahedra. The corner-sharing octahedral tilt angles range from 1-46°. In the twelfth O site, O(12) is bonded to two equivalent Ba(2), two equivalent Ba(3), one Cu(2), and one Cu(3) atom to form distorted OBa4Cu2 octahedra that share  a cornercorner with one O(11)Ba2Sr2Cu2 octahedra,  a cornercorner with one O(16)Sr4TlCu octahedra, edges with two equivalent O(12)Ba4Cu2 octahedra, faces with two equivalent O(8)Ba2Sr2Cu2 octahedra, and faces with two equivalent O(19)Ba3SrCu2 octahedra. The corner-sharing octahedral tilt angles are 1°. In the thirteenth O site, O(13) is bonded to two equivalent Sr(2), two equivalent Sr(3), one Tl(3), and one Tl(4) atom to form OSr4Tl2 octahedra that share corners with two equivalent O(8)Ba2Sr2Cu2 octahedra, corners with two equivalent O(7)BaSr3Cu2 octahedra, corners with two equivalent O(14)Sr4Tl2 octahedra, corners with two equivalent O(15)Sr4TlCu octahedra, corners with two equivalent O(16)Sr4TlCu octahedra, edges with two equivalent O(13)Sr4Tl2 octahedra,  a faceface with one O(15)Sr4TlCu octahedra, and  a faceface with one O(16)Sr4TlCu octahedra. The corner-sharing octahedral tilt angles range from 18-58°. In the fourteenth O site, O(14) is bonded to two equivalent Sr(4), two equivalent Sr(5), one Tl(3), and one Tl(4) atom to form OSr4Tl2 octahedra that share corners with two equivalent O(8)Ba2Sr2Cu2 octahedra, corners with two equivalent O(7)BaSr3Cu2 octahedra, corners with two equivalent O(13)Sr4Tl2 octahedra, corners with two equivalent O(15)Sr4TlCu octahedra, corners with two equivalent O(16)Sr4TlCu octahedra, edges with two equivalent O(14)Sr4Tl2 octahedra,  a faceface with one O(15)Sr4TlCu octahedra, and  a faceface with one O(16)Sr4TlCu octahedra. The corner-sharing octahedral tilt angles range from 18-58°. In the fifteenth O site, O(15) is bonded to two equivalent Sr(2), two equivalent Sr(5), one Cu(1), and one Tl(4) atom to form distorted OSr4TlCu octahedra that share  a cornercorner with one O(11)Ba2Sr2Cu2 octahedra, corners with two equivalent O(13)Sr4Tl2 octahedra, corners with two equivalent O(14)Sr4Tl2 octahedra, edges with two equivalent O(15)Sr4TlCu octahedra,  a faceface with one O(13)Sr4Tl2 octahedra,  a faceface with one O(14)Sr4Tl2 octahedra, and faces with two equivalent O(7)BaSr3Cu2 octahedra. The corner-sharing octahedral tilt angles range from 1-58°. In the sixteenth O site, O(16) is bonded to two equivalent Sr(3), two equivalent Sr(4), one Cu(2), and one Tl(3) atom to form distorted OSr4TlCu octahedra that share  a cornercorner with one O(12)Ba4Cu2 octahedra, corners with two equivalent O(13)Sr4Tl2 octahedra, corners with two equivalent O(14)Sr4Tl2 octahedra, edges with two equivalent O(16)Sr4TlCu octahedra,  a faceface with one O(13)Sr4Tl2 octahedra,  a faceface with one O(14)Sr4Tl2 octahedra, and faces with two equivalent O(8)Ba2Sr2Cu2 octahedra. The corner-sharing octahedral tilt angles range from 1-58°. In the seventeenth O site, O(17) is bonded in a distorted see-saw-like geometry to one Sr(2), one Sr(5), and two equivalent Tl(3) atoms. In the eighteenth O site, O(18) is bonded in a see-saw-like geometry to one Sr(3), one Sr(4), and two equivalent Tl(4) atoms. In the nineteenth O site, O(19) is bonded to one Ba(1), one Ba(2), one Ba(3), one Sr(1), and two equivalent Cu(3) atoms to form distorted OBa3SrCu2 octahedra that share corners with two equivalent O(19)Ba3SrCu2 octahedra, corners with two equivalent O(9)BaSrTl4 octahedra,  an edgeedge with one O(8)Ba2Sr2Cu2 octahedra,  an edgeedge with one O(7)BaSr3Cu2 octahedra, faces with two equivalent O(11)Ba2Sr2Cu2 octahedra, and faces with two equivalent O(12)Ba4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 4-44°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ba3Sr5Tl5Cu3O19
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.768
_cell_length_b   9.408
_cell_length_c   16.111
_cell_angle_alpha   73.030
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   546.270
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Ba  Ba0  1  0.500  0.729  0.128  1.0
  Ba  Ba1  1  0.500  0.273  0.874  1.0
  Ba  Ba2  1  0.500  0.853  0.874  1.0
  Sr  Sr3  1  0.500  0.142  0.127  1.0
  Sr  Sr4  1  0.500  0.606  0.370  1.0
  Sr  Sr5  1  0.500  0.396  0.628  1.0
  Sr  Sr6  1  0.500  0.977  0.628  1.0
  Sr  Sr7  1  0.500  0.025  0.370  1.0
  Tl  Tl8  1  0.000  0.380  0.231  1.0
  Tl  Tl9  1  0.000  0.616  0.768  1.0
  Tl  Tl10  1  0.000  0.263  0.475  1.0
  Tl  Tl11  1  0.000  0.739  0.524  1.0
  Tl  Tl12  1  0.000  0.493  0.005  1.0
  Cu  Cu13  1  0.000  0.883  0.252  1.0
  Cu  Cu14  1  0.000  0.128  0.747  1.0
  Cu  Cu15  1  0.000  0.008  0.001  1.0
  O  O16  1  0.000  0.711  0.002  1.0
  O  O17  1  0.000  0.274  0.009  1.0
  O  O18  1  0.000  0.583  0.260  1.0
  O  O19  1  0.000  0.412  0.739  1.0
  O  O20  1  0.000  0.849  0.738  1.0
  O  O21  1  0.000  0.148  0.254  1.0
  O  O22  1  0.500  0.874  0.258  1.0
  O  O23  1  0.500  0.131  0.739  1.0
  O  O24  1  0.500  0.423  0.132  1.0
  O  O25  1  0.500  0.565  0.867  1.0
  O  O26  1  0.000  0.950  0.128  1.0
  O  O27  1  0.000  0.064  0.873  1.0
  O  O28  1  0.000  0.501  0.499  1.0
  O  O29  1  0.000  0.000  0.498  1.0
  O  O30  1  0.000  0.811  0.379  1.0
  O  O31  1  0.000  0.190  0.619  1.0
  O  O32  1  0.500  0.300  0.396  1.0
  O  O33  1  0.500  0.699  0.602  1.0
  O  O34  1  0.500  0.004  0.005  1.0
[/CIF]
.
The structure described by Ba3Sr5Cu3Tl5O19 crystallizes in the monoclinic Pm space group. There are three inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 9-coordinate geometry to one O(19), one O(7), one O(9), two equivalent O(1), two equivalent O(11), and two equivalent O(3) atoms. In the second Ba site, Ba(2) is bonded in a 9-coordinate geometry to one O(10), one O(19), one O(8), two equivalent O(12), two equivalent O(2), and two equivalent O(4) atoms. In the third Ba site, Ba(3) is bonded in a 9-coordinate geometry to one O(10), one O(19), one O(8), two equivalent O(1), two equivalent O(12), and two equivalent O(5) atoms. There are five inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(19), one O(7), one O(9), two equivalent O(11), two equivalent O(2), and two equivalent O(6) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(17), one O(7), two equivalent O(13), two equivalent O(15), and two equivalent O(3) atoms. In the third Sr site, Sr(3) is bonded in a 8-coordinate geometry to one O(18), one O(8), two equivalent O(13), two equivalent O(16), and two equivalent O(4) atoms. In the fourth Sr site, Sr(4) is bonded in a 8-coordinate geometry to one O(18), one O(8), two equivalent O(14), two equivalent O(16), and two equivalent O(5) atoms. In the fifth Sr site, Sr(5) is bonded in a 8-coordinate geometry to one O(17), one O(7), two equivalent O(14), two equivalent O(15), and two equivalent O(6) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(11), one O(15), one O(6), and two equivalent O(7) atoms to form distorted CuO5 square pyramids that share  a cornercorner with one Cu(3)O5 square pyramid, corners with two equivalent Cu(1)O5 square pyramids, and  a cornercorner with one Tl(4)O5 trigonal bipyramid. In the second Cu site, Cu(2) is bonded in a distorted square co-planar geometry to one O(12), one O(16), one O(4), one O(5), and two equivalent O(8) atoms. In the third Cu site, Cu(3) is bonded to one O(11), one O(12), one O(2), and two equivalent O(19) atoms to form distorted corner-sharing CuO5 square pyramids. There are five inequivalent Tl sites. In the first Tl site, Tl(1) is bonded in a distorted see-saw-like geometry to one O(3), one O(6), and two equivalent O(9) atoms. In the second Tl site, Tl(2) is bonded to one O(4), one O(5), and two equivalent O(10) atoms to form distorted corner-sharing TlO4 trigonal pyramids. In the third Tl site, Tl(3) is bonded to one O(13), one O(14), one O(16), and two equivalent O(17) atoms to form corner-sharing TlO5 trigonal bipyramids. In the fourth Tl site, Tl(4) is bonded to one O(13), one O(14), one O(15), and two equivalent O(18) atoms to form TlO5 trigonal bipyramids that share  a cornercorner with one Cu(1)O5 square pyramid, corners with two equivalent Tl(3)O5 trigonal bipyramids, and corners with two equivalent Tl(4)O5 trigonal bipyramids. In the fifth Tl site, Tl(5) is bonded in a distorted linear geometry to one O(1), one O(2), and two equivalent O(9) atoms. There are nineteen inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to two equivalent Ba(1), two equivalent Ba(3), and one Tl(5) atom. In the second O site, O(2) is bonded in a 6-coordinate geometry to two equivalent Ba(2), two equivalent Sr(1), one Cu(3), and one Tl(5) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Ba(1), two equivalent Sr(2), and one Tl(1) atom. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to two equivalent Ba(2), two equivalent Sr(3), one Cu(2), and one Tl(2) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to two equivalent Ba(3), two equivalent Sr(4), one Cu(2), and one Tl(2) atom. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(5), one Cu(1), and one Tl(1) atom. In the seventh O site, O(7) is bonded to one Ba(1), one Sr(1), one Sr(2), one Sr(5), and two equivalent Cu(1) atoms to form distorted OBaSr3Cu2 octahedra that share corners with two equivalent O(7)BaSr3Cu2 octahedra, corners with two equivalent O(9)BaSrTl4 octahedra, corners with two equivalent O(13)Sr4Tl2 octahedra, corners with two equivalent O(14)Sr4Tl2 octahedra,  an edgeedge with one O(19)Ba3SrCu2 octahedra, faces with two equivalent O(11)Ba2Sr2Cu2 octahedra, and faces with two equivalent O(15)Sr4TlCu octahedra. The corner-sharing octahedral tilt angles range from 7-55°. In the eighth O site, O(8) is bonded to one Ba(2), one Ba(3), one Sr(3), one Sr(4), and two equivalent Cu(2) atoms to form distorted OBa2Sr2Cu2 octahedra that share corners with two equivalent O(8)Ba2Sr2Cu2 octahedra, corners with two equivalent O(13)Sr4Tl2 octahedra, corners with two equivalent O(14)Sr4Tl2 octahedra,  an edgeedge with one O(19)Ba3SrCu2 octahedra, faces with two equivalent O(12)Ba4Cu2 octahedra, and faces with two equivalent O(16)Sr4TlCu octahedra. The corner-sharing octahedral tilt angles range from 8-55°. In the ninth O site, O(9) is bonded to one Ba(1), one Sr(1), two equivalent Tl(1), and two equivalent Tl(5) atoms to form OBaSrTl4 octahedra that share corners with two equivalent O(19)Ba3SrCu2 octahedra, corners with two equivalent O(7)BaSr3Cu2 octahedra, corners with four equivalent O(11)Ba2Sr2Cu2 octahedra, and edges with two equivalent O(9)BaSrTl4 octahedra. The corner-sharing octahedral tilt angles range from 42-48°. In the tenth O site, O(10) is bonded in a distorted rectangular see-saw-like geometry to one Ba(2), one Ba(3), and two equivalent Tl(2) atoms. In the eleventh O site, O(11) is bonded to two equivalent Ba(1), two equivalent Sr(1), one Cu(1), and one Cu(3) atom to form distorted OBa2Sr2Cu2 octahedra that share  a cornercorner with one O(12)Ba4Cu2 octahedra,  a cornercorner with one O(15)Sr4TlCu octahedra, corners with four equivalent O(9)BaSrTl4 octahedra, edges with two equivalent O(11)Ba2Sr2Cu2 octahedra, faces with two equivalent O(19)Ba3SrCu2 octahedra, and faces with two equivalent O(7)BaSr3Cu2 octahedra. The corner-sharing octahedral tilt angles range from 1-46°. In the twelfth O site, O(12) is bonded to two equivalent Ba(2), two equivalent Ba(3), one Cu(2), and one Cu(3) atom to form distorted OBa4Cu2 octahedra that share  a cornercorner with one O(11)Ba2Sr2Cu2 octahedra,  a cornercorner with one O(16)Sr4TlCu octahedra, edges with two equivalent O(12)Ba4Cu2 octahedra, faces with two equivalent O(8)Ba2Sr2Cu2 octahedra, and faces with two equivalent O(19)Ba3SrCu2 octahedra. The corner-sharing octahedral tilt angles are 1°. In the thirteenth O site, O(13) is bonded to two equivalent Sr(2), two equivalent Sr(3), one Tl(3), and one Tl(4) atom to form OSr4Tl2 octahedra that share corners with two equivalent O(8)Ba2Sr2Cu2 octahedra, corners with two equivalent O(7)BaSr3Cu2 octahedra, corners with two equivalent O(14)Sr4Tl2 octahedra, corners with two equivalent O(15)Sr4TlCu octahedra, corners with two equivalent O(16)Sr4TlCu octahedra, edges with two equivalent O(13)Sr4Tl2 octahedra,  a faceface with one O(15)Sr4TlCu octahedra, and  a faceface with one O(16)Sr4TlCu octahedra. The corner-sharing octahedral tilt angles range from 18-58°. In the fourteenth O site, O(14) is bonded to two equivalent Sr(4), two equivalent Sr(5), one Tl(3), and one Tl(4) atom to form OSr4Tl2 octahedra that share corners with two equivalent O(8)Ba2Sr2Cu2 octahedra, corners with two equivalent O(7)BaSr3Cu2 octahedra, corners with two equivalent O(13)Sr4Tl2 octahedra, corners with two equivalent O(15)Sr4TlCu octahedra, corners with two equivalent O(16)Sr4TlCu octahedra, edges with two equivalent O(14)Sr4Tl2 octahedra,  a faceface with one O(15)Sr4TlCu octahedra, and  a faceface with one O(16)Sr4TlCu octahedra. The corner-sharing octahedral tilt angles range from 18-58°. In the fifteenth O site, O(15) is bonded to two equivalent Sr(2), two equivalent Sr(5), one Cu(1), and one Tl(4) atom to form distorted OSr4TlCu octahedra that share  a cornercorner with one O(11)Ba2Sr2Cu2 octahedra, corners with two equivalent O(13)Sr4Tl2 octahedra, corners with two equivalent O(14)Sr4Tl2 octahedra, edges with two equivalent O(15)Sr4TlCu octahedra,  a faceface with one O(13)Sr4Tl2 octahedra,  a faceface with one O(14)Sr4Tl2 octahedra, and faces with two equivalent O(7)BaSr3Cu2 octahedra. The corner-sharing octahedral tilt angles range from 1-58°. In the sixteenth O site, O(16) is bonded to two equivalent Sr(3), two equivalent Sr(4), one Cu(2), and one Tl(3) atom to form distorted OSr4TlCu octahedra that share  a cornercorner with one O(12)Ba4Cu2 octahedra, corners with two equivalent O(13)Sr4Tl2 octahedra, corners with two equivalent O(14)Sr4Tl2 octahedra, edges with two equivalent O(16)Sr4TlCu octahedra,  a faceface with one O(13)Sr4Tl2 octahedra,  a faceface with one O(14)Sr4Tl2 octahedra, and faces with two equivalent O(8)Ba2Sr2Cu2 octahedra. The corner-sharing octahedral tilt angles range from 1-58°. In the seventeenth O site, O(17) is bonded in a distorted see-saw-like geometry to one Sr(2), one Sr(5), and two equivalent Tl(3) atoms. In the eighteenth O site, O(18) is bonded in a see-saw-like geometry to one Sr(3), one Sr(4), and two equivalent Tl(4) atoms. In the nineteenth O site, O(19) is bonded to one Ba(1), one Ba(2), one Ba(3), one Sr(1), and two equivalent Cu(3) atoms to form distorted OBa3SrCu2 octahedra that share corners with two equivalent O(19)Ba3SrCu2 octahedra, corners with two equivalent O(9)BaSrTl4 octahedra,  an edgeedge with one O(8)Ba2Sr2Cu2 octahedra,  an edgeedge with one O(7)BaSr3Cu2 octahedra, faces with two equivalent O(11)Ba2Sr2Cu2 octahedra, and faces with two equivalent O(12)Ba4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 4-44°. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ba3Sr5Tl5Cu3O19
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.768
_cell_length_b   9.408
_cell_length_c   16.111
_cell_angle_alpha   73.030
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   546.270
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Ba  Ba0  1  0.500  0.729  0.128  1.0
  Ba  Ba1  1  0.500  0.273  0.874  1.0
  Ba  Ba2  1  0.500  0.853  0.874  1.0
  Sr  Sr3  1  0.500  0.142  0.127  1.0
  Sr  Sr4  1  0.500  0.606  0.370  1.0
  Sr  Sr5  1  0.500  0.396  0.628  1.0
  Sr  Sr6  1  0.500  0.977  0.628  1.0
  Sr  Sr7  1  0.500  0.025  0.370  1.0
  Tl  Tl8  1  0.000  0.380  0.231  1.0
  Tl  Tl9  1  0.000  0.616  0.768  1.0
  Tl  Tl10  1  0.000  0.263  0.475  1.0
  Tl  Tl11  1  0.000  0.739  0.524  1.0
  Tl  Tl12  1  0.000  0.493  0.005  1.0
  Cu  Cu13  1  0.000  0.883  0.252  1.0
  Cu  Cu14  1  0.000  0.128  0.747  1.0
  Cu  Cu15  1  0.000  0.008  0.001  1.0
  O  O16  1  0.000  0.711  0.002  1.0
  O  O17  1  0.000  0.274  0.009  1.0
  O  O18  1  0.000  0.583  0.260  1.0
  O  O19  1  0.000  0.412  0.739  1.0
  O  O20  1  0.000  0.849  0.738  1.0
  O  O21  1  0.000  0.148  0.254  1.0
  O  O22  1  0.500  0.874  0.258  1.0
  O  O23  1  0.500  0.131  0.739  1.0
  O  O24  1  0.500  0.423  0.132  1.0
  O  O25  1  0.500  0.565  0.867  1.0
  O  O26  1  0.000  0.950  0.128  1.0
  O  O27  1  0.000  0.064  0.873  1.0
  O  O28  1  0.000  0.501  0.499  1.0
  O  O29  1  0.000  0.000  0.498  1.0
  O  O30  1  0.000  0.811  0.379  1.0
  O  O31  1  0.000  0.190  0.619  1.0
  O  O32  1  0.500  0.300  0.396  1.0
  O  O33  1  0.500  0.699  0.602  1.0
  O  O34  1  0.500  0.004  0.005  1.0
[/CIF]
.