The structure described by Sr4CaYCo2(Cu2O7)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(6), one O(7), two equivalent O(4), and two equivalent O(5) atoms. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(6), one O(7), two equivalent O(4), and two equivalent O(5) atoms. Ca(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms. Y(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms. Co(1) is bonded to one O(4), one O(5), and two equivalent O(3) atoms to form distorted CoO4 trigonal pyramids that share  a cornercorner with one Cu(1)O5 square pyramid,  a cornercorner with one Cu(2)O5 square pyramid, and  an edgeedge with one Co(1)O4 trigonal pyramid. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(2), one O(4), one O(6), and one O(7) atom to form CuO5 square pyramids that share corners with four equivalent Cu(2)O5 square pyramids and  a cornercorner with one Co(1)O4 trigonal pyramid. In the second Cu site, Cu(2) is bonded to one O(1), one O(2), one O(5), one O(6), and one O(7) atom to form CuO5 square pyramids that share corners with four equivalent Cu(1)O5 square pyramids and  a cornercorner with one Co(1)O4 trigonal pyramid. There are seven inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), one Sr(2), one Ca(1), one Y(1), one Cu(1), and one Cu(2) atom to form distorted OSr2CaYCu2 octahedra that share corners with two equivalent O(1)Sr2CaYCu2 octahedra, corners with two equivalent O(2)Sr2CaYCu2 octahedra, corners with two equivalent O(6)Sr2CaYCu2 octahedra, corners with two equivalent O(7)Sr2CaYCu2 octahedra, corners with two equivalent O(3)Sr2Co2 trigonal pyramids, edges with three equivalent O(6)Sr2CaYCu2 octahedra, faces with two equivalent O(2)Sr2CaYCu2 octahedra, and faces with two equivalent O(7)Sr2CaYCu2 octahedra. The corner-sharing octahedral tilt angles range from 0-68°. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Ca(1), one Y(1), one Cu(1), and one Cu(2) atom to form distorted OSr2CaYCu2 octahedra that share corners with two equivalent O(1)Sr2CaYCu2 octahedra, corners with two equivalent O(2)Sr2CaYCu2 octahedra, corners with two equivalent O(6)Sr2CaYCu2 octahedra, corners with two equivalent O(7)Sr2CaYCu2 octahedra, corners with two equivalent O(3)Sr2Co2 trigonal pyramids, edges with three equivalent O(7)Sr2CaYCu2 octahedra, faces with two equivalent O(1)Sr2CaYCu2 octahedra, and faces with two equivalent O(6)Sr2CaYCu2 octahedra. The corner-sharing octahedral tilt angles range from 0-69°. In the third O site, O(3) is bonded to one Sr(1), one Sr(2), and two equivalent Co(1) atoms to form OSr2Co2 trigonal pyramids that share corners with two equivalent O(1)Sr2CaYCu2 octahedra, corners with two equivalent O(2)Sr2CaYCu2 octahedra, corners with two equivalent O(6)Sr2CaYCu2 octahedra, corners with two equivalent O(7)Sr2CaYCu2 octahedra, and  an edgeedge with one O(3)Sr2Co2 trigonal pyramid. The corner-sharing octahedral tilt angles range from 26-64°. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), one Co(1), and one Cu(1) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), one Co(1), and one Cu(2) atom. In the sixth O site, O(6) is bonded to one Sr(1), one Sr(2), one Ca(1), one Y(1), one Cu(1), and one Cu(2) atom to form distorted OSr2CaYCu2 octahedra that share corners with two equivalent O(1)Sr2CaYCu2 octahedra, corners with two equivalent O(2)Sr2CaYCu2 octahedra, corners with two equivalent O(6)Sr2CaYCu2 octahedra, corners with two equivalent O(7)Sr2CaYCu2 octahedra, corners with two equivalent O(3)Sr2Co2 trigonal pyramids, edges with three equivalent O(1)Sr2CaYCu2 octahedra, faces with two equivalent O(2)Sr2CaYCu2 octahedra, and faces with two equivalent O(7)Sr2CaYCu2 octahedra. The corner-sharing octahedral tilt angles range from 0-69°. In the seventh O site, O(7) is bonded to one Sr(1), one Sr(2), one Ca(1), one Y(1), one Cu(1), and one Cu(2) atom to form distorted OSr2CaYCu2 octahedra that share corners with two equivalent O(1)Sr2CaYCu2 octahedra, corners with two equivalent O(2)Sr2CaYCu2 octahedra, corners with two equivalent O(6)Sr2CaYCu2 octahedra, corners with two equivalent O(7)Sr2CaYCu2 octahedra, corners with two equivalent O(3)Sr2Co2 trigonal pyramids, edges with three equivalent O(2)Sr2CaYCu2 octahedra, faces with two equivalent O(1)Sr2CaYCu2 octahedra, and faces with two equivalent O(6)Sr2CaYCu2 octahedra. The corner-sharing octahedral tilt angles range from 0-69°. is represented by the CIF file [CIF]
data_Sr4CaYCo2(Cu2O7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.439
_cell_length_b   5.455
_cell_length_c   12.248
_cell_angle_alpha   102.866
_cell_angle_beta   102.865
_cell_angle_gamma   89.602
_symmetry_Int_Tables_number   1
_cell_volume   345.049
_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  0.157  0.161  0.302  1.0
  Sr  Sr1  1  0.361  0.363  0.700  1.0
  Sr  Sr2  1  0.639  0.637  0.300  1.0
  Sr  Sr3  1  0.843  0.839  0.698  1.0
  Ca  Ca4  1  0.500  0.500  0.000  1.0
  Y  Y5  1  0.000  0.000  0.000  1.0
  Co  Co6  1  0.186  0.810  0.500  1.0
  Co  Co7  1  0.814  0.190  0.500  1.0
  Cu  Cu8  1  0.072  0.574  0.148  1.0
  Cu  Cu9  1  0.427  0.927  0.851  1.0
  Cu  Cu10  1  0.573  0.073  0.149  1.0
  Cu  Cu11  1  0.928  0.426  0.852  1.0
  O  O12  1  0.180  0.179  0.866  1.0
  O  O13  1  0.180  0.691  0.870  1.0
  O  O14  1  0.175  0.170  0.502  1.0
  O  O15  1  0.191  0.656  0.353  1.0
  O  O16  1  0.336  0.800  0.648  1.0
  O  O17  1  0.307  0.308  0.124  1.0
  O  O18  1  0.308  0.821  0.131  1.0
  O  O19  1  0.692  0.179  0.869  1.0
  O  O20  1  0.693  0.692  0.876  1.0
  O  O21  1  0.664  0.200  0.352  1.0
  O  O22  1  0.809  0.344  0.647  1.0
  O  O23  1  0.825  0.830  0.498  1.0
  O  O24  1  0.820  0.309  0.130  1.0
  O  O25  1  0.820  0.821  0.134  1.0
[/CIF]
.
The structure described by Sr4CaYCo2(Cu2O7)2 crystallizes in the triclinic P-1 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(6), one O(7), two equivalent O(4), and two equivalent O(5) atoms. In the second Sr site, Sr(2) is bonded in a 9-coordinate geometry to one O(1), one O(2), one O(3), one O(6), one O(7), two equivalent O(4), and two equivalent O(5) atoms. Ca(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms. Y(1) is bonded in a body-centered cubic geometry to two equivalent O(1), two equivalent O(2), two equivalent O(6), and two equivalent O(7) atoms. Co(1) is bonded to one O(4), one O(5), and two equivalent O(3) atoms to form distorted CoO4 trigonal pyramids that share  a cornercorner with one Cu(1)O5 square pyramid,  a cornercorner with one Cu(2)O5 square pyramid, and  an edgeedge with one Co(1)O4 trigonal pyramid. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(2), one O(4), one O(6), and one O(7) atom to form CuO5 square pyramids that share corners with four equivalent Cu(2)O5 square pyramids and  a cornercorner with one Co(1)O4 trigonal pyramid. In the second Cu site, Cu(2) is bonded to one O(1), one O(2), one O(5), one O(6), and one O(7) atom to form CuO5 square pyramids that share corners with four equivalent Cu(1)O5 square pyramids and  a cornercorner with one Co(1)O4 trigonal pyramid. There are seven inequivalent O sites. In the first O site, O(1) is bonded to one Sr(1), one Sr(2), one Ca(1), one Y(1), one Cu(1), and one Cu(2) atom to form distorted OSr2CaYCu2 octahedra that share corners with two equivalent O(1)Sr2CaYCu2 octahedra, corners with two equivalent O(2)Sr2CaYCu2 octahedra, corners with two equivalent O(6)Sr2CaYCu2 octahedra, corners with two equivalent O(7)Sr2CaYCu2 octahedra, corners with two equivalent O(3)Sr2Co2 trigonal pyramids, edges with three equivalent O(6)Sr2CaYCu2 octahedra, faces with two equivalent O(2)Sr2CaYCu2 octahedra, and faces with two equivalent O(7)Sr2CaYCu2 octahedra. The corner-sharing octahedral tilt angles range from 0-68°. In the second O site, O(2) is bonded to one Sr(1), one Sr(2), one Ca(1), one Y(1), one Cu(1), and one Cu(2) atom to form distorted OSr2CaYCu2 octahedra that share corners with two equivalent O(1)Sr2CaYCu2 octahedra, corners with two equivalent O(2)Sr2CaYCu2 octahedra, corners with two equivalent O(6)Sr2CaYCu2 octahedra, corners with two equivalent O(7)Sr2CaYCu2 octahedra, corners with two equivalent O(3)Sr2Co2 trigonal pyramids, edges with three equivalent O(7)Sr2CaYCu2 octahedra, faces with two equivalent O(1)Sr2CaYCu2 octahedra, and faces with two equivalent O(6)Sr2CaYCu2 octahedra. The corner-sharing octahedral tilt angles range from 0-69°. In the third O site, O(3) is bonded to one Sr(1), one Sr(2), and two equivalent Co(1) atoms to form OSr2Co2 trigonal pyramids that share corners with two equivalent O(1)Sr2CaYCu2 octahedra, corners with two equivalent O(2)Sr2CaYCu2 octahedra, corners with two equivalent O(6)Sr2CaYCu2 octahedra, corners with two equivalent O(7)Sr2CaYCu2 octahedra, and  an edgeedge with one O(3)Sr2Co2 trigonal pyramid. The corner-sharing octahedral tilt angles range from 26-64°. In the fourth O site, O(4) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), one Co(1), and one Cu(1) atom. In the fifth O site, O(5) is bonded in a 6-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), one Co(1), and one Cu(2) atom. In the sixth O site, O(6) is bonded to one Sr(1), one Sr(2), one Ca(1), one Y(1), one Cu(1), and one Cu(2) atom to form distorted OSr2CaYCu2 octahedra that share corners with two equivalent O(1)Sr2CaYCu2 octahedra, corners with two equivalent O(2)Sr2CaYCu2 octahedra, corners with two equivalent O(6)Sr2CaYCu2 octahedra, corners with two equivalent O(7)Sr2CaYCu2 octahedra, corners with two equivalent O(3)Sr2Co2 trigonal pyramids, edges with three equivalent O(1)Sr2CaYCu2 octahedra, faces with two equivalent O(2)Sr2CaYCu2 octahedra, and faces with two equivalent O(7)Sr2CaYCu2 octahedra. The corner-sharing octahedral tilt angles range from 0-69°. In the seventh O site, O(7) is bonded to one Sr(1), one Sr(2), one Ca(1), one Y(1), one Cu(1), and one Cu(2) atom to form distorted OSr2CaYCu2 octahedra that share corners with two equivalent O(1)Sr2CaYCu2 octahedra, corners with two equivalent O(2)Sr2CaYCu2 octahedra, corners with two equivalent O(6)Sr2CaYCu2 octahedra, corners with two equivalent O(7)Sr2CaYCu2 octahedra, corners with two equivalent O(3)Sr2Co2 trigonal pyramids, edges with three equivalent O(2)Sr2CaYCu2 octahedra, faces with two equivalent O(1)Sr2CaYCu2 octahedra, and faces with two equivalent O(6)Sr2CaYCu2 octahedra. The corner-sharing octahedral tilt angles range from 0-69°. is represented by the CIF file [CIF]
data_Sr4CaYCo2(Cu2O7)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.439
_cell_length_b   5.455
_cell_length_c   12.248
_cell_angle_alpha   102.866
_cell_angle_beta   102.865
_cell_angle_gamma   89.602
_symmetry_Int_Tables_number   1
_cell_volume   345.049
_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  0.157  0.161  0.302  1.0
  Sr  Sr1  1  0.361  0.363  0.700  1.0
  Sr  Sr2  1  0.639  0.637  0.300  1.0
  Sr  Sr3  1  0.843  0.839  0.698  1.0
  Ca  Ca4  1  0.500  0.500  0.000  1.0
  Y  Y5  1  0.000  0.000  0.000  1.0
  Co  Co6  1  0.186  0.810  0.500  1.0
  Co  Co7  1  0.814  0.190  0.500  1.0
  Cu  Cu8  1  0.072  0.574  0.148  1.0
  Cu  Cu9  1  0.427  0.927  0.851  1.0
  Cu  Cu10  1  0.573  0.073  0.149  1.0
  Cu  Cu11  1  0.928  0.426  0.852  1.0
  O  O12  1  0.180  0.179  0.866  1.0
  O  O13  1  0.180  0.691  0.870  1.0
  O  O14  1  0.175  0.170  0.502  1.0
  O  O15  1  0.191  0.656  0.353  1.0
  O  O16  1  0.336  0.800  0.648  1.0
  O  O17  1  0.307  0.308  0.124  1.0
  O  O18  1  0.308  0.821  0.131  1.0
  O  O19  1  0.692  0.179  0.869  1.0
  O  O20  1  0.693  0.692  0.876  1.0
  O  O21  1  0.664  0.200  0.352  1.0
  O  O22  1  0.809  0.344  0.647  1.0
  O  O23  1  0.825  0.830  0.498  1.0
  O  O24  1  0.820  0.309  0.130  1.0
  O  O25  1  0.820  0.821  0.134  1.0
[/CIF]
.