The structure described by CaY4(BiO3)4 crystallizes in the triclinic P1 space group. Ca(1) is bonded in a 5-coordinate geometry to one O(11), one O(3), one O(4), one O(7), and one O(9) atom. There are four inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(10), one O(12), one O(2), one O(3), one O(4), and one O(7) atom to form distorted corner-sharing YO6 octahedra. In the second Y site, Y(2) is bonded to one O(1), one O(11), one O(5), one O(6), one O(8), and one O(9) atom to form distorted corner-sharing YO6 pentagonal pyramids. In the third Y site, Y(3) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(12), one O(2), one O(4), one O(5), and one O(7) atom. In the fourth Y site, Y(4) is bonded to one O(11), one O(3), one O(6), one O(8), and one O(9) atom to form corner-sharing YO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 52°. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 4-coordinate geometry to one O(1), one O(12), one O(2), one O(5), and one O(9) atom. In the second Bi site, Bi(2) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(2), one O(5), one O(6), and one O(9) atom. In the third Bi site, Bi(3) is bonded in a 3-coordinate geometry to one O(10), one O(4), and one O(7) atom. In the fourth Bi site, Bi(4) is bonded in a distorted rectangular see-saw-like geometry to one O(10), one O(12), one O(3), and one O(8) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Y(2), one Y(3), one Bi(1), and one Bi(2) atom to form distorted OY2Bi2 tetrahedra that share  a cornercorner with one O(7)CaY2Bi tetrahedra,  a cornercorner with one O(2)Y2Bi2 tetrahedra,  a cornercorner with one O(4)CaY2Bi trigonal pyramid,  a cornercorner with one O(10)Y2Bi2 trigonal pyramid, corners with two equivalent O(5)Y2Bi2 trigonal pyramids,  an edgeedge with one O(2)Y2Bi2 tetrahedra, and  an edgeedge with one O(5)Y2Bi2 trigonal pyramid. In the second O site, O(2) is bonded to one Y(1), one Y(3), one Bi(1), and one Bi(2) atom to form distorted OY2Bi2 tetrahedra that share  a cornercorner with one O(1)Y2Bi2 tetrahedra,  a cornercorner with one O(5)Y2Bi2 trigonal pyramid, corners with two equivalent O(4)CaY2Bi trigonal pyramids, corners with two equivalent O(10)Y2Bi2 trigonal pyramids,  an edgeedge with one O(7)CaY2Bi tetrahedra,  an edgeedge with one O(1)Y2Bi2 tetrahedra, and  an edgeedge with one O(5)Y2Bi2 trigonal pyramid. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Ca(1), one Y(1), one Y(4), and one Bi(4) atom. In the fourth O site, O(4) is bonded to one Ca(1), one Y(1), one Y(3), and one Bi(3) atom to form OCaY2Bi trigonal pyramids that share  a cornercorner with one O(1)Y2Bi2 tetrahedra, corners with two equivalent O(2)Y2Bi2 tetrahedra,  a cornercorner with one O(5)Y2Bi2 trigonal pyramid, corners with three equivalent O(10)Y2Bi2 trigonal pyramids, and edges with two equivalent O(7)CaY2Bi tetrahedra. In the fifth O site, O(5) is bonded to one Y(2), one Y(3), one Bi(1), and one Bi(2) atom to form OY2Bi2 trigonal pyramids that share  a cornercorner with one O(7)CaY2Bi tetrahedra,  a cornercorner with one O(2)Y2Bi2 tetrahedra, corners with two equivalent O(1)Y2Bi2 tetrahedra,  a cornercorner with one O(4)CaY2Bi trigonal pyramid,  a cornercorner with one O(10)Y2Bi2 trigonal pyramid,  an edgeedge with one O(1)Y2Bi2 tetrahedra, and  an edgeedge with one O(2)Y2Bi2 tetrahedra. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Y(2), one Y(4), and one Bi(2) atom. In the seventh O site, O(7) is bonded to one Ca(1), one Y(1), one Y(3), and one Bi(3) atom to form OCaY2Bi tetrahedra that share  a cornercorner with one O(1)Y2Bi2 tetrahedra,  a cornercorner with one O(10)Y2Bi2 trigonal pyramid,  a cornercorner with one O(5)Y2Bi2 trigonal pyramid,  an edgeedge with one O(2)Y2Bi2 tetrahedra,  an edgeedge with one O(10)Y2Bi2 trigonal pyramid, and edges with two equivalent O(4)CaY2Bi trigonal pyramids. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Y(2), one Y(4), and one Bi(4) atom. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Ca(1), one Y(2), one Y(4), one Bi(1), and one Bi(2) atom. In the tenth O site, O(10) is bonded to one Y(1), one Y(3), one Bi(3), and one Bi(4) atom to form distorted OY2Bi2 trigonal pyramids that share  a cornercorner with one O(7)CaY2Bi tetrahedra,  a cornercorner with one O(1)Y2Bi2 tetrahedra, corners with two equivalent O(2)Y2Bi2 tetrahedra,  a cornercorner with one O(5)Y2Bi2 trigonal pyramid, corners with three equivalent O(4)CaY2Bi trigonal pyramids, and  an edgeedge with one O(7)CaY2Bi tetrahedra. In the eleventh O site, O(11) is bonded in a distorted square co-planar geometry to one Ca(1), one Y(2), one Y(4), and one Bi(2) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Y(1), one Y(3), one Bi(1), and one Bi(4) atom. is represented by the CIF file [CIF]
data_CaY4(BiO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.291
_cell_length_b   5.915
_cell_length_c   9.360
_cell_angle_alpha   89.852
_cell_angle_beta   84.939
_cell_angle_gamma   89.729
_symmetry_Int_Tables_number   1
_cell_volume   346.938
_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
  Ca  Ca0  1  0.230  0.534  0.060  1.0
  Y  Y1  1  0.057  0.968  0.796  1.0
  Y  Y2  1  0.527  0.501  0.324  1.0
  Y  Y3  1  0.461  0.432  0.713  1.0
  Y  Y4  1  0.979  0.020  0.223  1.0
  Bi  Bi5  1  0.995  0.489  0.522  1.0
  Bi  Bi6  1  0.434  0.993  0.425  1.0
  Bi  Bi7  1  0.521  0.978  0.979  1.0
  Bi  Bi8  1  0.800  0.478  0.961  1.0
  O  O9  1  0.657  0.320  0.510  1.0
  O  O10  1  0.181  0.220  0.623  1.0
  O  O11  1  0.958  0.843  0.023  1.0
  O  O12  1  0.344  0.743  0.846  1.0
  O  O13  1  0.334  0.669  0.538  1.0
  O  O14  1  0.744  0.804  0.353  1.0
  O  O15  1  0.288  0.222  0.910  1.0
  O  O16  1  0.723  0.267  0.184  1.0
  O  O17  1  0.226  0.292  0.279  1.0
  O  O18  1  0.728  0.163  0.815  1.0
  O  O19  1  0.303  0.797  0.238  1.0
  O  O20  1  0.864  0.651  0.723  1.0
[/CIF]
.
The structure described by CaY4(BiO3)4 crystallizes in the triclinic P1 space group. Ca(1) is bonded in a 5-coordinate geometry to one O(11), one O(3), one O(4), one O(7), and one O(9) atom. There are four inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(10), one O(12), one O(2), one O(3), one O(4), and one O(7) atom to form distorted corner-sharing YO6 octahedra. In the second Y site, Y(2) is bonded to one O(1), one O(11), one O(5), one O(6), one O(8), and one O(9) atom to form distorted corner-sharing YO6 pentagonal pyramids. In the third Y site, Y(3) is bonded in a 7-coordinate geometry to one O(1), one O(10), one O(12), one O(2), one O(4), one O(5), and one O(7) atom. In the fourth Y site, Y(4) is bonded to one O(11), one O(3), one O(6), one O(8), and one O(9) atom to form corner-sharing YO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 52°. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 4-coordinate geometry to one O(1), one O(12), one O(2), one O(5), and one O(9) atom. In the second Bi site, Bi(2) is bonded in a 6-coordinate geometry to one O(1), one O(11), one O(2), one O(5), one O(6), and one O(9) atom. In the third Bi site, Bi(3) is bonded in a 3-coordinate geometry to one O(10), one O(4), and one O(7) atom. In the fourth Bi site, Bi(4) is bonded in a distorted rectangular see-saw-like geometry to one O(10), one O(12), one O(3), and one O(8) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Y(2), one Y(3), one Bi(1), and one Bi(2) atom to form distorted OY2Bi2 tetrahedra that share  a cornercorner with one O(7)CaY2Bi tetrahedra,  a cornercorner with one O(2)Y2Bi2 tetrahedra,  a cornercorner with one O(4)CaY2Bi trigonal pyramid,  a cornercorner with one O(10)Y2Bi2 trigonal pyramid, corners with two equivalent O(5)Y2Bi2 trigonal pyramids,  an edgeedge with one O(2)Y2Bi2 tetrahedra, and  an edgeedge with one O(5)Y2Bi2 trigonal pyramid. In the second O site, O(2) is bonded to one Y(1), one Y(3), one Bi(1), and one Bi(2) atom to form distorted OY2Bi2 tetrahedra that share  a cornercorner with one O(1)Y2Bi2 tetrahedra,  a cornercorner with one O(5)Y2Bi2 trigonal pyramid, corners with two equivalent O(4)CaY2Bi trigonal pyramids, corners with two equivalent O(10)Y2Bi2 trigonal pyramids,  an edgeedge with one O(7)CaY2Bi tetrahedra,  an edgeedge with one O(1)Y2Bi2 tetrahedra, and  an edgeedge with one O(5)Y2Bi2 trigonal pyramid. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Ca(1), one Y(1), one Y(4), and one Bi(4) atom. In the fourth O site, O(4) is bonded to one Ca(1), one Y(1), one Y(3), and one Bi(3) atom to form OCaY2Bi trigonal pyramids that share  a cornercorner with one O(1)Y2Bi2 tetrahedra, corners with two equivalent O(2)Y2Bi2 tetrahedra,  a cornercorner with one O(5)Y2Bi2 trigonal pyramid, corners with three equivalent O(10)Y2Bi2 trigonal pyramids, and edges with two equivalent O(7)CaY2Bi tetrahedra. In the fifth O site, O(5) is bonded to one Y(2), one Y(3), one Bi(1), and one Bi(2) atom to form OY2Bi2 trigonal pyramids that share  a cornercorner with one O(7)CaY2Bi tetrahedra,  a cornercorner with one O(2)Y2Bi2 tetrahedra, corners with two equivalent O(1)Y2Bi2 tetrahedra,  a cornercorner with one O(4)CaY2Bi trigonal pyramid,  a cornercorner with one O(10)Y2Bi2 trigonal pyramid,  an edgeedge with one O(1)Y2Bi2 tetrahedra, and  an edgeedge with one O(2)Y2Bi2 tetrahedra. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Y(2), one Y(4), and one Bi(2) atom. In the seventh O site, O(7) is bonded to one Ca(1), one Y(1), one Y(3), and one Bi(3) atom to form OCaY2Bi tetrahedra that share  a cornercorner with one O(1)Y2Bi2 tetrahedra,  a cornercorner with one O(10)Y2Bi2 trigonal pyramid,  a cornercorner with one O(5)Y2Bi2 trigonal pyramid,  an edgeedge with one O(2)Y2Bi2 tetrahedra,  an edgeedge with one O(10)Y2Bi2 trigonal pyramid, and edges with two equivalent O(4)CaY2Bi trigonal pyramids. In the eighth O site, O(8) is bonded in a distorted trigonal non-coplanar geometry to one Y(2), one Y(4), and one Bi(4) atom. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Ca(1), one Y(2), one Y(4), one Bi(1), and one Bi(2) atom. In the tenth O site, O(10) is bonded to one Y(1), one Y(3), one Bi(3), and one Bi(4) atom to form distorted OY2Bi2 trigonal pyramids that share  a cornercorner with one O(7)CaY2Bi tetrahedra,  a cornercorner with one O(1)Y2Bi2 tetrahedra, corners with two equivalent O(2)Y2Bi2 tetrahedra,  a cornercorner with one O(5)Y2Bi2 trigonal pyramid, corners with three equivalent O(4)CaY2Bi trigonal pyramids, and  an edgeedge with one O(7)CaY2Bi tetrahedra. In the eleventh O site, O(11) is bonded in a distorted square co-planar geometry to one Ca(1), one Y(2), one Y(4), and one Bi(2) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Y(1), one Y(3), one Bi(1), and one Bi(4) atom. is represented by the CIF file [CIF]
data_CaY4(BiO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.291
_cell_length_b   5.915
_cell_length_c   9.360
_cell_angle_alpha   89.852
_cell_angle_beta   84.939
_cell_angle_gamma   89.729
_symmetry_Int_Tables_number   1
_cell_volume   346.938
_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
  Ca  Ca0  1  0.230  0.534  0.060  1.0
  Y  Y1  1  0.057  0.968  0.796  1.0
  Y  Y2  1  0.527  0.501  0.324  1.0
  Y  Y3  1  0.461  0.432  0.713  1.0
  Y  Y4  1  0.979  0.020  0.223  1.0
  Bi  Bi5  1  0.995  0.489  0.522  1.0
  Bi  Bi6  1  0.434  0.993  0.425  1.0
  Bi  Bi7  1  0.521  0.978  0.979  1.0
  Bi  Bi8  1  0.800  0.478  0.961  1.0
  O  O9  1  0.657  0.320  0.510  1.0
  O  O10  1  0.181  0.220  0.623  1.0
  O  O11  1  0.958  0.843  0.023  1.0
  O  O12  1  0.344  0.743  0.846  1.0
  O  O13  1  0.334  0.669  0.538  1.0
  O  O14  1  0.744  0.804  0.353  1.0
  O  O15  1  0.288  0.222  0.910  1.0
  O  O16  1  0.723  0.267  0.184  1.0
  O  O17  1  0.226  0.292  0.279  1.0
  O  O18  1  0.728  0.163  0.815  1.0
  O  O19  1  0.303  0.797  0.238  1.0
  O  O20  1  0.864  0.651  0.723  1.0
[/CIF]
.