The crystal structure described by CuBi2(SeO3)4 crystallizes in the monoclinic P2_1/c space group. Cu(1) is bonded in a square co-planar geometry to two equivalent O(5) and two equivalent O(6) atoms. Bi(1) is bonded to one O(2), one O(4), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form distorted corner-sharing BiO7 pentagonal bipyramids. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(5), and one O(6) atom. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(2), one O(3), and one O(4) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Bi(1) and one Se(1) atom. In the second O site, O(2) is bonded in a water-like geometry to one Bi(1) and one Se(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Bi(1) and one Se(2) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Bi(1) and one Se(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Cu(1) and one Se(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Cu(1), one Bi(1), and one Se(1) atom. is represented by the CIF card [CIF]
data_CuBi2(SeO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.393
_cell_length_b   8.215
_cell_length_c   15.868
_cell_angle_alpha   90.015
_cell_angle_beta   90.005
_cell_angle_gamma   95.197
_symmetry_Int_Tables_number   1
_cell_volume   570.289
_cell_formula_units_Z   2
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
  Cu  Cu0  1  0.000  0.000  0.000  1.0
  Cu  Cu1  1  0.000  0.500  0.500  1.0
  Bi  Bi2  1  0.501  0.540  0.272  1.0
  Bi  Bi3  1  0.499  0.460  0.728  1.0
  Bi  Bi4  1  0.499  0.960  0.773  1.0
  Bi  Bi5  1  0.501  0.040  0.227  1.0
  Se  Se6  1  0.447  0.255  0.429  1.0
  Se  Se7  1  0.026  0.371  0.126  1.0
  Se  Se8  1  0.553  0.245  0.929  1.0
  Se  Se9  1  0.447  0.755  0.071  1.0
  Se  Se10  1  0.974  0.629  0.874  1.0
  Se  Se11  1  0.974  0.129  0.627  1.0
  Se  Se12  1  0.553  0.745  0.571  1.0
  Se  Se13  1  0.026  0.871  0.373  1.0
  O  O14  1  0.540  0.761  0.178  1.0
  O  O15  1  0.413  0.888  0.352  1.0
  O  O16  1  0.954  0.976  0.281  1.0
  O  O17  1  0.587  0.612  0.853  1.0
  O  O18  1  0.067  0.829  0.851  1.0
  O  O19  1  0.587  0.112  0.648  1.0
  O  O20  1  0.795  0.284  0.476  1.0
  O  O21  1  0.669  0.552  0.572  1.0
  O  O22  1  0.066  0.329  0.650  1.0
  O  O23  1  0.795  0.783  0.024  1.0
  O  O24  1  0.540  0.261  0.322  1.0
  O  O25  1  0.934  0.671  0.350  1.0
  O  O26  1  0.954  0.476  0.219  1.0
  O  O27  1  0.669  0.052  0.928  1.0
  O  O28  1  0.413  0.388  0.147  1.0
  O  O29  1  0.046  0.024  0.719  1.0
  O  O30  1  0.460  0.739  0.678  1.0
  O  O31  1  0.460  0.239  0.822  1.0
  O  O32  1  0.205  0.716  0.524  1.0
  O  O33  1  0.331  0.448  0.428  1.0
  O  O34  1  0.933  0.171  0.149  1.0
  O  O35  1  0.331  0.948  0.072  1.0
  O  O36  1  0.046  0.524  0.781  1.0
  O  O37  1  0.205  0.217  0.976  1.0
[/CIF]
.
The crystal structure described by CuBi2(SeO3)4 crystallizes in the monoclinic P2_1/c space group. Cu(1) is bonded in a square co-planar geometry to two equivalent O(5) and two equivalent O(6) atoms. Bi(1) is bonded to one O(2), one O(4), one O(6), two equivalent O(1), and two equivalent O(3) atoms to form distorted corner-sharing BiO7 pentagonal bipyramids. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal non-coplanar geometry to one O(1), one O(5), and one O(6) atom. In the second Se site, Se(2) is bonded in a distorted trigonal non-coplanar geometry to one O(2), one O(3), and one O(4) atom. There are six inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Bi(1) and one Se(1) atom. In the second O site, O(2) is bonded in a water-like geometry to one Bi(1) and one Se(2) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Bi(1) and one Se(2) atom. In the fourth O site, O(4) is bonded in a 2-coordinate geometry to one Bi(1) and one Se(2) atom. In the fifth O site, O(5) is bonded in a bent 120 degrees geometry to one Cu(1) and one Se(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Cu(1), one Bi(1), and one Se(1) atom. is represented by the CIF card [CIF]
data_CuBi2(SeO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.393
_cell_length_b   8.215
_cell_length_c   15.868
_cell_angle_alpha   90.015
_cell_angle_beta   90.005
_cell_angle_gamma   95.197
_symmetry_Int_Tables_number   1
_cell_volume   570.289
_cell_formula_units_Z   2
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
  Cu  Cu0  1  0.000  0.000  0.000  1.0
  Cu  Cu1  1  0.000  0.500  0.500  1.0
  Bi  Bi2  1  0.501  0.540  0.272  1.0
  Bi  Bi3  1  0.499  0.460  0.728  1.0
  Bi  Bi4  1  0.499  0.960  0.773  1.0
  Bi  Bi5  1  0.501  0.040  0.227  1.0
  Se  Se6  1  0.447  0.255  0.429  1.0
  Se  Se7  1  0.026  0.371  0.126  1.0
  Se  Se8  1  0.553  0.245  0.929  1.0
  Se  Se9  1  0.447  0.755  0.071  1.0
  Se  Se10  1  0.974  0.629  0.874  1.0
  Se  Se11  1  0.974  0.129  0.627  1.0
  Se  Se12  1  0.553  0.745  0.571  1.0
  Se  Se13  1  0.026  0.871  0.373  1.0
  O  O14  1  0.540  0.761  0.178  1.0
  O  O15  1  0.413  0.888  0.352  1.0
  O  O16  1  0.954  0.976  0.281  1.0
  O  O17  1  0.587  0.612  0.853  1.0
  O  O18  1  0.067  0.829  0.851  1.0
  O  O19  1  0.587  0.112  0.648  1.0
  O  O20  1  0.795  0.284  0.476  1.0
  O  O21  1  0.669  0.552  0.572  1.0
  O  O22  1  0.066  0.329  0.650  1.0
  O  O23  1  0.795  0.783  0.024  1.0
  O  O24  1  0.540  0.261  0.322  1.0
  O  O25  1  0.934  0.671  0.350  1.0
  O  O26  1  0.954  0.476  0.219  1.0
  O  O27  1  0.669  0.052  0.928  1.0
  O  O28  1  0.413  0.388  0.147  1.0
  O  O29  1  0.046  0.024  0.719  1.0
  O  O30  1  0.460  0.739  0.678  1.0
  O  O31  1  0.460  0.239  0.822  1.0
  O  O32  1  0.205  0.716  0.524  1.0
  O  O33  1  0.331  0.448  0.428  1.0
  O  O34  1  0.933  0.171  0.149  1.0
  O  O35  1  0.331  0.948  0.072  1.0
  O  O36  1  0.046  0.524  0.781  1.0
  O  O37  1  0.205  0.217  0.976  1.0
[/CIF]
.