The crystal structure described by Ba2Sr2Y2Cu6O13 crystallizes in the orthorhombic Fmm2 space group. Ba(1) is bonded in a 9-coordinate geometry to one O(3), one O(4), one O(9), two equivalent O(5), and four equivalent O(1) atoms. Sr(1) is bonded in a 9-coordinate geometry to one O(6), one O(7), one O(9), two equivalent O(8), and four equivalent O(2) atoms. Y(1) is bonded in a body-centered cubic geometry to one O(3), one O(4), one O(6), one O(7), two equivalent O(5), and two equivalent O(8) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(3), one O(4), and two equivalent O(5) atoms to form distorted corner-sharing CuO5 square pyramids. In the second Cu site, Cu(2) is bonded to one O(2), one O(6), one O(7), and two equivalent O(8) atoms to form corner-sharing CuO5 square pyramids. In the third Cu site, Cu(3) is bonded in a T-shaped geometry to one O(1), one O(2), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(6) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Y(1), and two equivalent Cu(2) atoms. In the second O site, O(8) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Y(1), and two equivalent Cu(2) atoms. In the third O site, O(9) is bonded to two equivalent Ba(1), two equivalent Sr(1), and two equivalent Cu(3) atoms to form distorted OBa2Sr2Cu2 octahedra that share  an edgeedge with one O(3)Ba2Y2Cu2 octahedra and  an edgeedge with one O(7)Sr2Y2Cu2 octahedra. In the fourth O site, O(1) is bonded in a 6-coordinate geometry to four equivalent Ba(1), one Cu(1), and one Cu(3) atom. In the fifth O site, O(2) is bonded in a 6-coordinate geometry to four equivalent Sr(1), one Cu(2), and one Cu(3) atom. In the sixth O site, O(3) is bonded to two equivalent Ba(1), two equivalent Y(1), and two equivalent Cu(1) atoms to form distorted OBa2Y2Cu2 octahedra that share corners with two equivalent O(7)Sr2Y2Cu2 octahedra and  an edgeedge with one O(9)Ba2Sr2Cu2 octahedra. The corner-sharing octahedral tilt angles are 1°. In the seventh O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Ba(1), two equivalent Y(1), and two equivalent Cu(1) atoms. In the eighth O site, O(5) is bonded in a 6-coordinate geometry to two equivalent Ba(1), two equivalent Y(1), and two equivalent Cu(1) atoms. In the ninth O site, O(7) is bonded to two equivalent Sr(1), two equivalent Y(1), and two equivalent Cu(2) atoms to form distorted OSr2Y2Cu2 octahedra that share corners with two equivalent O(3)Ba2Y2Cu2 octahedra and  an edgeedge with one O(9)Ba2Sr2Cu2 octahedra. The corner-sharing octahedral tilt angles are 1°. is represented by the CIF file [CIF]
data_Ba2Sr2Y2Cu6O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.401
_cell_length_b   12.373
_cell_length_c   5.469
_cell_angle_alpha   77.534
_cell_angle_beta   76.958
_cell_angle_gamma   25.508
_symmetry_Int_Tables_number   1
_cell_volume   351.897
_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  0.398  0.914  0.602  1.0
  Ba  Ba1  1  0.914  0.398  0.086  1.0
  Sr  Sr2  1  0.104  0.591  0.896  1.0
  Sr  Sr3  1  0.591  0.104  0.409  1.0
  Y  Y4  1  0.749  0.248  0.251  1.0
  Y  Y5  1  0.248  0.749  0.752  1.0
  Cu  Cu6  1  0.321  0.818  0.182  1.0
  Cu  Cu7  1  0.818  0.321  0.679  1.0
  Cu  Cu8  1  0.175  0.678  0.322  1.0
  Cu  Cu9  1  0.678  0.175  0.825  1.0
  Cu  Cu10  1  0.008  0.497  0.503  1.0
  Cu  Cu11  1  0.497  0.008  0.992  1.0
  O  O12  1  0.448  0.902  0.098  1.0
  O  O13  1  0.902  0.448  0.552  1.0
  O  O14  1  0.051  0.608  0.392  1.0
  O  O15  1  0.608  0.051  0.949  1.0
  O  O16  1  0.061  0.061  0.939  1.0
  O  O17  1  0.559  0.559  0.441  1.0
  O  O18  1  0.059  0.059  0.441  1.0
  O  O19  1  0.559  0.559  0.941  1.0
  O  O20  1  0.937  0.937  0.063  1.0
  O  O21  1  0.433  0.433  0.567  1.0
  O  O22  1  0.937  0.937  0.563  1.0
  O  O23  1  0.437  0.437  0.063  1.0
  O  O24  1  0.257  0.257  0.743  1.0
[/CIF]
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The crystal structure described by Ba2Sr2Y2Cu6O13 crystallizes in the orthorhombic Fmm2 space group. Ba(1) is bonded in a 9-coordinate geometry to one O(3), one O(4), one O(9), two equivalent O(5), and four equivalent O(1) atoms. Sr(1) is bonded in a 9-coordinate geometry to one O(6), one O(7), one O(9), two equivalent O(8), and four equivalent O(2) atoms. Y(1) is bonded in a body-centered cubic geometry to one O(3), one O(4), one O(6), one O(7), two equivalent O(5), and two equivalent O(8) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(3), one O(4), and two equivalent O(5) atoms to form distorted corner-sharing CuO5 square pyramids. In the second Cu site, Cu(2) is bonded to one O(2), one O(6), one O(7), and two equivalent O(8) atoms to form corner-sharing CuO5 square pyramids. In the third Cu site, Cu(3) is bonded in a T-shaped geometry to one O(1), one O(2), and one O(9) atom. There are nine inequivalent O sites. In the first O site, O(6) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Y(1), and two equivalent Cu(2) atoms. In the second O site, O(8) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Y(1), and two equivalent Cu(2) atoms. In the third O site, O(9) is bonded to two equivalent Ba(1), two equivalent Sr(1), and two equivalent Cu(3) atoms to form distorted OBa2Sr2Cu2 octahedra that share  an edgeedge with one O(3)Ba2Y2Cu2 octahedra and  an edgeedge with one O(7)Sr2Y2Cu2 octahedra. In the fourth O site, O(1) is bonded in a 6-coordinate geometry to four equivalent Ba(1), one Cu(1), and one Cu(3) atom. In the fifth O site, O(2) is bonded in a 6-coordinate geometry to four equivalent Sr(1), one Cu(2), and one Cu(3) atom. In the sixth O site, O(3) is bonded to two equivalent Ba(1), two equivalent Y(1), and two equivalent Cu(1) atoms to form distorted OBa2Y2Cu2 octahedra that share corners with two equivalent O(7)Sr2Y2Cu2 octahedra and  an edgeedge with one O(9)Ba2Sr2Cu2 octahedra. The corner-sharing octahedral tilt angles are 1°. In the seventh O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Ba(1), two equivalent Y(1), and two equivalent Cu(1) atoms. In the eighth O site, O(5) is bonded in a 6-coordinate geometry to two equivalent Ba(1), two equivalent Y(1), and two equivalent Cu(1) atoms. In the ninth O site, O(7) is bonded to two equivalent Sr(1), two equivalent Y(1), and two equivalent Cu(2) atoms to form distorted OSr2Y2Cu2 octahedra that share corners with two equivalent O(3)Ba2Y2Cu2 octahedra and  an edgeedge with one O(9)Ba2Sr2Cu2 octahedra. The corner-sharing octahedral tilt angles are 1°. is represented by the CIF file [CIF]
data_Ba2Sr2Y2Cu6O13
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   12.401
_cell_length_b   12.373
_cell_length_c   5.469
_cell_angle_alpha   77.534
_cell_angle_beta   76.958
_cell_angle_gamma   25.508
_symmetry_Int_Tables_number   1
_cell_volume   351.897
_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  0.398  0.914  0.602  1.0
  Ba  Ba1  1  0.914  0.398  0.086  1.0
  Sr  Sr2  1  0.104  0.591  0.896  1.0
  Sr  Sr3  1  0.591  0.104  0.409  1.0
  Y  Y4  1  0.749  0.248  0.251  1.0
  Y  Y5  1  0.248  0.749  0.752  1.0
  Cu  Cu6  1  0.321  0.818  0.182  1.0
  Cu  Cu7  1  0.818  0.321  0.679  1.0
  Cu  Cu8  1  0.175  0.678  0.322  1.0
  Cu  Cu9  1  0.678  0.175  0.825  1.0
  Cu  Cu10  1  0.008  0.497  0.503  1.0
  Cu  Cu11  1  0.497  0.008  0.992  1.0
  O  O12  1  0.448  0.902  0.098  1.0
  O  O13  1  0.902  0.448  0.552  1.0
  O  O14  1  0.051  0.608  0.392  1.0
  O  O15  1  0.608  0.051  0.949  1.0
  O  O16  1  0.061  0.061  0.939  1.0
  O  O17  1  0.559  0.559  0.441  1.0
  O  O18  1  0.059  0.059  0.441  1.0
  O  O19  1  0.559  0.559  0.941  1.0
  O  O20  1  0.937  0.937  0.063  1.0
  O  O21  1  0.433  0.433  0.567  1.0
  O  O22  1  0.937  0.937  0.563  1.0
  O  O23  1  0.437  0.437  0.063  1.0
  O  O24  1  0.257  0.257  0.743  1.0
[/CIF]
.