The material described by Sr4Y2Fe2Cu4O15 crystallizes in the orthorhombic Fmmm space group. Sr(1) is bonded in a 11-coordinate geometry to one O(1), one O(2), one O(6), two equivalent O(3), two equivalent O(5), and four equivalent O(4) atoms. Y(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(3) atoms. Fe(1) is bonded to one O(6), two equivalent O(4), and two equivalent O(5) atoms to form FeO5 trigonal bipyramids that share corners with two equivalent Cu(1)O5 square pyramids and corners with three equivalent Fe(1)O5 trigonal bipyramids. Cu(1) is bonded to one O(1), one O(2), one O(4), and two equivalent O(3) atoms to form CuO5 square pyramids that share corners with four equivalent Cu(1)O5 square pyramids and  a cornercorner with one Fe(1)O5 trigonal bipyramid. There are six inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(1), two equivalent Y(1), and two equivalent Cu(1) atoms to form distorted OSr2Y2Cu2 octahedra that share corners with two equivalent O(1)Sr2Y2Cu2 octahedra and corners with four equivalent O(5)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-57°. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Sr(1), two equivalent Y(1), and two equivalent Cu(1) atoms. In the third O site, O(3) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Y(1), and two equivalent Cu(1) atoms. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to four equivalent Sr(1), one Fe(1), and one Cu(1) atom. In the fifth O site, O(5) is bonded to four equivalent Sr(1) and two equivalent Fe(1) atoms to form distorted OSr4Fe2 octahedra that share corners with two equivalent O(5)Sr4Fe2 octahedra, corners with four equivalent O(1)Sr2Y2Cu2 octahedra, and edges with two equivalent O(5)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 3-57°. In the sixth O site, O(6) is bonded in a distorted linear geometry to four equivalent Sr(1) and two equivalent Fe(1) atoms. is represented by the CIF card [CIF]
data_Sr4Y2Fe2Cu4O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.980
_cell_length_b   11.966
_cell_length_c   5.475
_cell_angle_alpha   76.930
_cell_angle_beta   76.635
_cell_angle_gamma   26.435
_symmetry_Int_Tables_number   1
_cell_volume   339.634
_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
  Sr  Sr0  1  0.667  0.154  0.846  1.0
  Sr  Sr1  1  0.154  0.667  0.333  1.0
  Sr  Sr2  1  0.333  0.846  0.154  1.0
  Sr  Sr3  1  0.846  0.333  0.667  1.0
  Y  Y4  1  0.500  0.000  0.000  1.0
  Y  Y5  1  0.000  0.500  0.500  1.0
  Fe  Fe6  1  0.243  0.757  0.757  1.0
  Fe  Fe7  1  0.757  0.243  0.243  1.0
  Cu  Cu8  1  0.572  0.078  0.428  1.0
  Cu  Cu9  1  0.078  0.572  0.922  1.0
  Cu  Cu10  1  0.428  0.922  0.572  1.0
  Cu  Cu11  1  0.922  0.428  0.078  1.0
  O  O12  1  0.820  0.820  0.180  1.0
  O  O13  1  0.307  0.307  0.693  1.0
  O  O14  1  0.814  0.814  0.686  1.0
  O  O15  1  0.314  0.314  0.186  1.0
  O  O16  1  0.693  0.693  0.307  1.0
  O  O17  1  0.180  0.180  0.820  1.0
  O  O18  1  0.686  0.686  0.814  1.0
  O  O19  1  0.186  0.186  0.314  1.0
  O  O20  1  0.211  0.626  0.789  1.0
  O  O21  1  0.626  0.211  0.374  1.0
  O  O22  1  0.789  0.374  0.211  1.0
  O  O23  1  0.374  0.789  0.626  1.0
  O  O24  1  0.000  0.000  0.500  1.0
  O  O25  1  0.500  0.500  0.000  1.0
  O  O26  1  0.000  0.000  0.000  1.0
[/CIF]
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The material described by Sr4Y2Fe2Cu4O15 crystallizes in the orthorhombic Fmmm space group. Sr(1) is bonded in a 11-coordinate geometry to one O(1), one O(2), one O(6), two equivalent O(3), two equivalent O(5), and four equivalent O(4) atoms. Y(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(2), and four equivalent O(3) atoms. Fe(1) is bonded to one O(6), two equivalent O(4), and two equivalent O(5) atoms to form FeO5 trigonal bipyramids that share corners with two equivalent Cu(1)O5 square pyramids and corners with three equivalent Fe(1)O5 trigonal bipyramids. Cu(1) is bonded to one O(1), one O(2), one O(4), and two equivalent O(3) atoms to form CuO5 square pyramids that share corners with four equivalent Cu(1)O5 square pyramids and  a cornercorner with one Fe(1)O5 trigonal bipyramid. There are six inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(1), two equivalent Y(1), and two equivalent Cu(1) atoms to form distorted OSr2Y2Cu2 octahedra that share corners with two equivalent O(1)Sr2Y2Cu2 octahedra and corners with four equivalent O(5)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 0-57°. In the second O site, O(2) is bonded in a 4-coordinate geometry to two equivalent Sr(1), two equivalent Y(1), and two equivalent Cu(1) atoms. In the third O site, O(3) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Y(1), and two equivalent Cu(1) atoms. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to four equivalent Sr(1), one Fe(1), and one Cu(1) atom. In the fifth O site, O(5) is bonded to four equivalent Sr(1) and two equivalent Fe(1) atoms to form distorted OSr4Fe2 octahedra that share corners with two equivalent O(5)Sr4Fe2 octahedra, corners with four equivalent O(1)Sr2Y2Cu2 octahedra, and edges with two equivalent O(5)Sr4Fe2 octahedra. The corner-sharing octahedral tilt angles range from 3-57°. In the sixth O site, O(6) is bonded in a distorted linear geometry to four equivalent Sr(1) and two equivalent Fe(1) atoms. is represented by the CIF card [CIF]
data_Sr4Y2Fe2Cu4O15
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.980
_cell_length_b   11.966
_cell_length_c   5.475
_cell_angle_alpha   76.930
_cell_angle_beta   76.635
_cell_angle_gamma   26.435
_symmetry_Int_Tables_number   1
_cell_volume   339.634
_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
  Sr  Sr0  1  0.667  0.154  0.846  1.0
  Sr  Sr1  1  0.154  0.667  0.333  1.0
  Sr  Sr2  1  0.333  0.846  0.154  1.0
  Sr  Sr3  1  0.846  0.333  0.667  1.0
  Y  Y4  1  0.500  0.000  0.000  1.0
  Y  Y5  1  0.000  0.500  0.500  1.0
  Fe  Fe6  1  0.243  0.757  0.757  1.0
  Fe  Fe7  1  0.757  0.243  0.243  1.0
  Cu  Cu8  1  0.572  0.078  0.428  1.0
  Cu  Cu9  1  0.078  0.572  0.922  1.0
  Cu  Cu10  1  0.428  0.922  0.572  1.0
  Cu  Cu11  1  0.922  0.428  0.078  1.0
  O  O12  1  0.820  0.820  0.180  1.0
  O  O13  1  0.307  0.307  0.693  1.0
  O  O14  1  0.814  0.814  0.686  1.0
  O  O15  1  0.314  0.314  0.186  1.0
  O  O16  1  0.693  0.693  0.307  1.0
  O  O17  1  0.180  0.180  0.820  1.0
  O  O18  1  0.686  0.686  0.814  1.0
  O  O19  1  0.186  0.186  0.314  1.0
  O  O20  1  0.211  0.626  0.789  1.0
  O  O21  1  0.626  0.211  0.374  1.0
  O  O22  1  0.789  0.374  0.211  1.0
  O  O23  1  0.374  0.789  0.626  1.0
  O  O24  1  0.000  0.000  0.500  1.0
  O  O25  1  0.500  0.500  0.000  1.0
  O  O26  1  0.000  0.000  0.000  1.0
[/CIF]
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