The material structure described by Ho2Cu(BO2)8 crystallizes in the orthorhombic Pbam space group. Ho(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Cu(1) is bonded in an octahedral geometry to two equivalent O(5) and four equivalent O(2) atoms. There are three inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(4), and one O(5) atom. In the second B site, B(2) is bonded in a tetrahedral geometry to two equivalent O(3) and two equivalent O(4) atoms. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(3) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Ho(1) and one B(3) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ho(1), one Cu(1), and one B(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Ho(1), one B(2), and one B(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Ho(1), one B(1), and one B(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and two equivalent B(1) atoms. is represented by the CIF card [CIF]
data_Ho2Cu(BO2)8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.229
_cell_length_b   8.499
_cell_length_c   10.248
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   542.556
_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
  Ho  Ho0  1  0.500  0.500  0.818  1.0
  Ho  Ho1  1  0.500  0.500  0.182  1.0
  Ho  Ho2  1  0.000  0.000  0.182  1.0
  Ho  Ho3  1  0.000  0.000  0.818  1.0
  Cu  Cu4  1  0.500  0.500  0.500  1.0
  Cu  Cu5  1  0.000  0.000  0.500  1.0
  B  B6  1  0.881  0.693  0.623  1.0
  B  B7  1  0.119  0.307  0.623  1.0
  B  B8  1  0.381  0.807  0.623  1.0
  B  B9  1  0.619  0.193  0.377  1.0
  B  B10  1  0.881  0.693  0.377  1.0
  B  B11  1  0.381  0.807  0.377  1.0
  B  B12  1  0.500  0.000  0.806  1.0
  B  B13  1  0.119  0.307  0.377  1.0
  B  B14  1  0.000  0.500  0.194  1.0
  B  B15  1  0.114  0.683  0.000  1.0
  B  B16  1  0.500  0.000  0.194  1.0
  B  B17  1  0.386  0.183  0.000  1.0
  B  B18  1  0.886  0.317  0.000  1.0
  B  B19  1  0.614  0.817  0.000  1.0
  B  B20  1  0.000  0.500  0.806  1.0
  B  B21  1  0.619  0.193  0.623  1.0
  O  O22  1  0.062  0.837  0.000  1.0
  O  O23  1  0.937  0.845  0.359  1.0
  O  O24  1  0.149  0.599  0.116  1.0
  O  O25  1  0.649  0.901  0.884  1.0
  O  O26  1  0.438  0.337  0.000  1.0
  O  O27  1  0.153  0.406  0.270  1.0
  O  O28  1  0.649  0.127  0.500  1.0
  O  O29  1  0.153  0.406  0.730  1.0
  O  O30  1  0.653  0.094  0.730  1.0
  O  O31  1  0.937  0.845  0.641  1.0
  O  O32  1  0.149  0.599  0.884  1.0
  O  O33  1  0.563  0.345  0.641  1.0
  O  O34  1  0.649  0.901  0.116  1.0
  O  O35  1  0.437  0.655  0.359  1.0
  O  O36  1  0.351  0.099  0.884  1.0
  O  O37  1  0.063  0.155  0.359  1.0
  O  O38  1  0.149  0.373  0.500  1.0
  O  O39  1  0.938  0.163  0.000  1.0
  O  O40  1  0.847  0.594  0.730  1.0
  O  O41  1  0.851  0.401  0.884  1.0
  O  O42  1  0.847  0.594  0.270  1.0
  O  O43  1  0.563  0.345  0.359  1.0
  O  O44  1  0.351  0.873  0.500  1.0
  O  O45  1  0.562  0.663  0.000  1.0
  O  O46  1  0.347  0.906  0.270  1.0
  O  O47  1  0.351  0.099  0.116  1.0
  O  O48  1  0.653  0.094  0.270  1.0
  O  O49  1  0.437  0.655  0.641  1.0
  O  O50  1  0.851  0.401  0.116  1.0
  O  O51  1  0.063  0.155  0.641  1.0
  O  O52  1  0.347  0.906  0.730  1.0
  O  O53  1  0.851  0.627  0.500  1.0
[/CIF]
.
The material structure described by Ho2Cu(BO2)8 crystallizes in the orthorhombic Pbam space group. Ho(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(4) atoms. Cu(1) is bonded in an octahedral geometry to two equivalent O(5) and four equivalent O(2) atoms. There are three inequivalent B sites. In the first B site, B(1) is bonded in a trigonal planar geometry to one O(2), one O(4), and one O(5) atom. In the second B site, B(2) is bonded in a tetrahedral geometry to two equivalent O(3) and two equivalent O(4) atoms. In the third B site, B(3) is bonded in a trigonal planar geometry to one O(1) and two equivalent O(3) atoms. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to two equivalent Ho(1) and one B(3) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ho(1), one Cu(1), and one B(1) atom. In the third O site, O(3) is bonded in a 2-coordinate geometry to one Ho(1), one B(2), and one B(3) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Ho(1), one B(1), and one B(2) atom. In the fifth O site, O(5) is bonded in a distorted bent 120 degrees geometry to one Cu(1) and two equivalent B(1) atoms. is represented by the CIF card [CIF]
data_Ho2Cu(BO2)8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.229
_cell_length_b   8.499
_cell_length_c   10.248
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   542.556
_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
  Ho  Ho0  1  0.500  0.500  0.818  1.0
  Ho  Ho1  1  0.500  0.500  0.182  1.0
  Ho  Ho2  1  0.000  0.000  0.182  1.0
  Ho  Ho3  1  0.000  0.000  0.818  1.0
  Cu  Cu4  1  0.500  0.500  0.500  1.0
  Cu  Cu5  1  0.000  0.000  0.500  1.0
  B  B6  1  0.881  0.693  0.623  1.0
  B  B7  1  0.119  0.307  0.623  1.0
  B  B8  1  0.381  0.807  0.623  1.0
  B  B9  1  0.619  0.193  0.377  1.0
  B  B10  1  0.881  0.693  0.377  1.0
  B  B11  1  0.381  0.807  0.377  1.0
  B  B12  1  0.500  0.000  0.806  1.0
  B  B13  1  0.119  0.307  0.377  1.0
  B  B14  1  0.000  0.500  0.194  1.0
  B  B15  1  0.114  0.683  0.000  1.0
  B  B16  1  0.500  0.000  0.194  1.0
  B  B17  1  0.386  0.183  0.000  1.0
  B  B18  1  0.886  0.317  0.000  1.0
  B  B19  1  0.614  0.817  0.000  1.0
  B  B20  1  0.000  0.500  0.806  1.0
  B  B21  1  0.619  0.193  0.623  1.0
  O  O22  1  0.062  0.837  0.000  1.0
  O  O23  1  0.937  0.845  0.359  1.0
  O  O24  1  0.149  0.599  0.116  1.0
  O  O25  1  0.649  0.901  0.884  1.0
  O  O26  1  0.438  0.337  0.000  1.0
  O  O27  1  0.153  0.406  0.270  1.0
  O  O28  1  0.649  0.127  0.500  1.0
  O  O29  1  0.153  0.406  0.730  1.0
  O  O30  1  0.653  0.094  0.730  1.0
  O  O31  1  0.937  0.845  0.641  1.0
  O  O32  1  0.149  0.599  0.884  1.0
  O  O33  1  0.563  0.345  0.641  1.0
  O  O34  1  0.649  0.901  0.116  1.0
  O  O35  1  0.437  0.655  0.359  1.0
  O  O36  1  0.351  0.099  0.884  1.0
  O  O37  1  0.063  0.155  0.359  1.0
  O  O38  1  0.149  0.373  0.500  1.0
  O  O39  1  0.938  0.163  0.000  1.0
  O  O40  1  0.847  0.594  0.730  1.0
  O  O41  1  0.851  0.401  0.884  1.0
  O  O42  1  0.847  0.594  0.270  1.0
  O  O43  1  0.563  0.345  0.359  1.0
  O  O44  1  0.351  0.873  0.500  1.0
  O  O45  1  0.562  0.663  0.000  1.0
  O  O46  1  0.347  0.906  0.270  1.0
  O  O47  1  0.351  0.099  0.116  1.0
  O  O48  1  0.653  0.094  0.270  1.0
  O  O49  1  0.437  0.655  0.641  1.0
  O  O50  1  0.851  0.401  0.116  1.0
  O  O51  1  0.063  0.155  0.641  1.0
  O  O52  1  0.347  0.906  0.730  1.0
  O  O53  1  0.851  0.627  0.500  1.0
[/CIF]
.