The structure described by BaSrCa2Tl(CuO3)3 crystallizes in the monoclinic Pm space group. Ba(1) is bonded in a 9-coordinate geometry to one O(7), two equivalent O(3), two equivalent O(4), and four equivalent O(1) atoms. Sr(1) is bonded in a 9-coordinate geometry to one O(7), two equivalent O(5), two equivalent O(6), and four equivalent O(2) atoms. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a body-centered cubic geometry to two equivalent O(3), two equivalent O(4), two equivalent O(8), and two equivalent O(9) atoms. In the second Ca site, Ca(2) is bonded in a body-centered cubic geometry to two equivalent O(5), two equivalent O(6), two equivalent O(8), and two equivalent O(9) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), two equivalent O(3), and two equivalent O(4) atoms. In the second Cu site, Cu(2) is bonded to one O(2), two equivalent O(5), and two equivalent O(6) atoms to form corner-sharing CuO5 square pyramids. In the third Cu site, Cu(3) is bonded in a rectangular see-saw-like geometry to two equivalent O(8) and two equivalent O(9) atoms. Tl(1) is bonded in a see-saw-like geometry to one O(1), one O(2), and two equivalent O(7) atoms. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to four equivalent Ba(1), one Cu(1), and one Tl(1) atom. In the second O site, O(2) is bonded to four equivalent Sr(1), one Cu(2), and one Tl(1) atom to form distorted OSr4TlCu octahedra that share corners with four equivalent O(5)Sr2Ca2Cu2 octahedra, corners with four equivalent O(6)Sr2Ca2Cu2 octahedra, corners with four equivalent O(2)Sr4TlCu octahedra, edges with four equivalent O(2)Sr4TlCu octahedra, faces with two equivalent O(5)Sr2Ca2Cu2 octahedra, and faces with two equivalent O(6)Sr2Ca2Cu2 octahedra. The corner-sharing octahedral tilt angles range from 19-54°. In the third O site, O(3) is bonded to two equivalent Ba(1), two equivalent Ca(1), and two equivalent Cu(1) atoms to form distorted OBa2Ca2Cu2 octahedra that share corners with two equivalent O(3)Ba2Ca2Cu2 octahedra, corners with two equivalent O(8)Ca4Cu2 octahedra, corners with four equivalent O(9)Ca4Cu2 octahedra,  an edgeedge with one O(8)Ca4Cu2 octahedra, and edges with two equivalent O(3)Ba2Ca2Cu2 octahedra. The corner-sharing octahedral tilt angles range from 4-67°. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to two equivalent Ba(1), two equivalent Ca(1), and two equivalent Cu(1) atoms. In the fifth O site, O(5) is bonded to two equivalent Sr(1), two equivalent Ca(2), and two equivalent Cu(2) atoms to form distorted OSr2Ca2Cu2 octahedra that share corners with two equivalent O(8)Ca4Cu2 octahedra, corners with two equivalent O(5)Sr2Ca2Cu2 octahedra, corners with four equivalent O(9)Ca4Cu2 octahedra, corners with four equivalent O(2)Sr4TlCu octahedra,  an edgeedge with one O(8)Ca4Cu2 octahedra, edges with two equivalent O(5)Sr2Ca2Cu2 octahedra, faces with two equivalent O(2)Sr4TlCu octahedra, and faces with four equivalent O(6)Sr2Ca2Cu2 octahedra. The corner-sharing octahedral tilt angles range from 3-66°. In the sixth O site, O(6) is bonded to two equivalent Sr(1), two equivalent Ca(2), and two equivalent Cu(2) atoms to form distorted OSr2Ca2Cu2 octahedra that share corners with two equivalent O(9)Ca4Cu2 octahedra, corners with two equivalent O(6)Sr2Ca2Cu2 octahedra, corners with four equivalent O(8)Ca4Cu2 octahedra, corners with four equivalent O(2)Sr4TlCu octahedra,  an edgeedge with one O(9)Ca4Cu2 octahedra, edges with two equivalent O(6)Sr2Ca2Cu2 octahedra, faces with two equivalent O(2)Sr4TlCu octahedra, and faces with four equivalent O(5)Sr2Ca2Cu2 octahedra. The corner-sharing octahedral tilt angles range from 3-66°. In the seventh O site, O(7) is bonded in a see-saw-like geometry to one Ba(1), one Sr(1), and two equivalent Tl(1) atoms. In the eighth O site, O(8) is bonded to two equivalent Ca(1), two equivalent Ca(2), and two equivalent Cu(3) atoms to form OCa4Cu2 octahedra that share corners with two equivalent O(3)Ba2Ca2Cu2 octahedra, corners with two equivalent O(8)Ca4Cu2 octahedra, corners with two equivalent O(5)Sr2Ca2Cu2 octahedra, corners with four equivalent O(6)Sr2Ca2Cu2 octahedra,  an edgeedge with one O(3)Ba2Ca2Cu2 octahedra,  an edgeedge with one O(5)Sr2Ca2Cu2 octahedra, edges with two equivalent O(8)Ca4Cu2 octahedra, and faces with four equivalent O(9)Ca4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 2-66°. In the ninth O site, O(9) is bonded to two equivalent Ca(1), two equivalent Ca(2), and two equivalent Cu(3) atoms to form OCa4Cu2 octahedra that share corners with two equivalent O(9)Ca4Cu2 octahedra, corners with two equivalent O(6)Sr2Ca2Cu2 octahedra, corners with four equivalent O(3)Ba2Ca2Cu2 octahedra, corners with four equivalent O(5)Sr2Ca2Cu2 octahedra,  an edgeedge with one O(6)Sr2Ca2Cu2 octahedra, edges with two equivalent O(9)Ca4Cu2 octahedra, and faces with four equivalent O(8)Ca4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 2-67°. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaSrCa2Tl(CuO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.828
_cell_length_b   3.845
_cell_length_c   15.791
_cell_angle_alpha   90.139
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   232.403
_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  0.513  0.836  1.0
  Sr  Sr1  1  0.500  0.512  0.169  1.0
  Ca  Ca2  1  0.500  0.502  0.603  1.0
  Ca  Ca3  1  0.500  0.502  0.392  1.0
  Tl  Tl4  1  0.000  0.079  0.006  1.0
  Cu  Cu5  1  0.000  0.005  0.706  1.0
  Cu  Cu6  1  0.000  0.005  0.284  1.0
  Cu  Cu7  1  0.000  0.000  0.499  1.0
  O  O8  1  0.000  0.007  0.873  1.0
  O  O9  1  0.000  0.001  0.141  1.0
  O  O10  1  0.000  0.504  0.696  1.0
  O  O11  1  0.500  0.004  0.696  1.0
  O  O12  1  0.000  0.504  0.297  1.0
  O  O13  1  0.500  0.003  0.297  1.0
  O  O14  1  0.500  0.442  0.010  1.0
  O  O15  1  0.000  0.500  0.497  1.0
  O  O16  1  0.500  0.001  0.497  1.0
[/CIF]
.
The structure described by BaSrCa2Tl(CuO3)3 crystallizes in the monoclinic Pm space group. Ba(1) is bonded in a 9-coordinate geometry to one O(7), two equivalent O(3), two equivalent O(4), and four equivalent O(1) atoms. Sr(1) is bonded in a 9-coordinate geometry to one O(7), two equivalent O(5), two equivalent O(6), and four equivalent O(2) atoms. There are two inequivalent Ca sites. In the first Ca site, Ca(1) is bonded in a body-centered cubic geometry to two equivalent O(3), two equivalent O(4), two equivalent O(8), and two equivalent O(9) atoms. In the second Ca site, Ca(2) is bonded in a body-centered cubic geometry to two equivalent O(5), two equivalent O(6), two equivalent O(8), and two equivalent O(9) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), two equivalent O(3), and two equivalent O(4) atoms. In the second Cu site, Cu(2) is bonded to one O(2), two equivalent O(5), and two equivalent O(6) atoms to form corner-sharing CuO5 square pyramids. In the third Cu site, Cu(3) is bonded in a rectangular see-saw-like geometry to two equivalent O(8) and two equivalent O(9) atoms. Tl(1) is bonded in a see-saw-like geometry to one O(1), one O(2), and two equivalent O(7) atoms. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to four equivalent Ba(1), one Cu(1), and one Tl(1) atom. In the second O site, O(2) is bonded to four equivalent Sr(1), one Cu(2), and one Tl(1) atom to form distorted OSr4TlCu octahedra that share corners with four equivalent O(5)Sr2Ca2Cu2 octahedra, corners with four equivalent O(6)Sr2Ca2Cu2 octahedra, corners with four equivalent O(2)Sr4TlCu octahedra, edges with four equivalent O(2)Sr4TlCu octahedra, faces with two equivalent O(5)Sr2Ca2Cu2 octahedra, and faces with two equivalent O(6)Sr2Ca2Cu2 octahedra. The corner-sharing octahedral tilt angles range from 19-54°. In the third O site, O(3) is bonded to two equivalent Ba(1), two equivalent Ca(1), and two equivalent Cu(1) atoms to form distorted OBa2Ca2Cu2 octahedra that share corners with two equivalent O(3)Ba2Ca2Cu2 octahedra, corners with two equivalent O(8)Ca4Cu2 octahedra, corners with four equivalent O(9)Ca4Cu2 octahedra,  an edgeedge with one O(8)Ca4Cu2 octahedra, and edges with two equivalent O(3)Ba2Ca2Cu2 octahedra. The corner-sharing octahedral tilt angles range from 4-67°. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to two equivalent Ba(1), two equivalent Ca(1), and two equivalent Cu(1) atoms. In the fifth O site, O(5) is bonded to two equivalent Sr(1), two equivalent Ca(2), and two equivalent Cu(2) atoms to form distorted OSr2Ca2Cu2 octahedra that share corners with two equivalent O(8)Ca4Cu2 octahedra, corners with two equivalent O(5)Sr2Ca2Cu2 octahedra, corners with four equivalent O(9)Ca4Cu2 octahedra, corners with four equivalent O(2)Sr4TlCu octahedra,  an edgeedge with one O(8)Ca4Cu2 octahedra, edges with two equivalent O(5)Sr2Ca2Cu2 octahedra, faces with two equivalent O(2)Sr4TlCu octahedra, and faces with four equivalent O(6)Sr2Ca2Cu2 octahedra. The corner-sharing octahedral tilt angles range from 3-66°. In the sixth O site, O(6) is bonded to two equivalent Sr(1), two equivalent Ca(2), and two equivalent Cu(2) atoms to form distorted OSr2Ca2Cu2 octahedra that share corners with two equivalent O(9)Ca4Cu2 octahedra, corners with two equivalent O(6)Sr2Ca2Cu2 octahedra, corners with four equivalent O(8)Ca4Cu2 octahedra, corners with four equivalent O(2)Sr4TlCu octahedra,  an edgeedge with one O(9)Ca4Cu2 octahedra, edges with two equivalent O(6)Sr2Ca2Cu2 octahedra, faces with two equivalent O(2)Sr4TlCu octahedra, and faces with four equivalent O(5)Sr2Ca2Cu2 octahedra. The corner-sharing octahedral tilt angles range from 3-66°. In the seventh O site, O(7) is bonded in a see-saw-like geometry to one Ba(1), one Sr(1), and two equivalent Tl(1) atoms. In the eighth O site, O(8) is bonded to two equivalent Ca(1), two equivalent Ca(2), and two equivalent Cu(3) atoms to form OCa4Cu2 octahedra that share corners with two equivalent O(3)Ba2Ca2Cu2 octahedra, corners with two equivalent O(8)Ca4Cu2 octahedra, corners with two equivalent O(5)Sr2Ca2Cu2 octahedra, corners with four equivalent O(6)Sr2Ca2Cu2 octahedra,  an edgeedge with one O(3)Ba2Ca2Cu2 octahedra,  an edgeedge with one O(5)Sr2Ca2Cu2 octahedra, edges with two equivalent O(8)Ca4Cu2 octahedra, and faces with four equivalent O(9)Ca4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 2-66°. In the ninth O site, O(9) is bonded to two equivalent Ca(1), two equivalent Ca(2), and two equivalent Cu(3) atoms to form OCa4Cu2 octahedra that share corners with two equivalent O(9)Ca4Cu2 octahedra, corners with two equivalent O(6)Sr2Ca2Cu2 octahedra, corners with four equivalent O(3)Ba2Ca2Cu2 octahedra, corners with four equivalent O(5)Sr2Ca2Cu2 octahedra,  an edgeedge with one O(6)Sr2Ca2Cu2 octahedra, edges with two equivalent O(9)Ca4Cu2 octahedra, and faces with four equivalent O(8)Ca4Cu2 octahedra. The corner-sharing octahedral tilt angles range from 2-67°. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaSrCa2Tl(CuO3)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.828
_cell_length_b   3.845
_cell_length_c   15.791
_cell_angle_alpha   90.139
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   232.403
_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  0.513  0.836  1.0
  Sr  Sr1  1  0.500  0.512  0.169  1.0
  Ca  Ca2  1  0.500  0.502  0.603  1.0
  Ca  Ca3  1  0.500  0.502  0.392  1.0
  Tl  Tl4  1  0.000  0.079  0.006  1.0
  Cu  Cu5  1  0.000  0.005  0.706  1.0
  Cu  Cu6  1  0.000  0.005  0.284  1.0
  Cu  Cu7  1  0.000  0.000  0.499  1.0
  O  O8  1  0.000  0.007  0.873  1.0
  O  O9  1  0.000  0.001  0.141  1.0
  O  O10  1  0.000  0.504  0.696  1.0
  O  O11  1  0.500  0.004  0.696  1.0
  O  O12  1  0.000  0.504  0.297  1.0
  O  O13  1  0.500  0.003  0.297  1.0
  O  O14  1  0.500  0.442  0.010  1.0
  O  O15  1  0.000  0.500  0.497  1.0
  O  O16  1  0.500  0.001  0.497  1.0
[/CIF]
.