The material structure described by Ho2B3O8 crystallizes in the orthorhombic Pbcn space group. Ho(1) is bonded in a 7-coordinate geometry to one O(2), one O(3), two equivalent O(4), and three equivalent O(1) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form corner-sharing BO4 tetrahedra. In the second B site, B(2) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form corner-sharing BO4 tetrahedra. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Ho(1), one B(1), and one B(2) atom. In the second O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Ho(1) and one B(1) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Ho(1) and one B(2) atom. In the fourth O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Ho(1) and two equivalent B(2) atoms. is represented by the CIF file [CIF]
data_Ho2B3O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.362
_cell_length_b   8.895
_cell_length_c   12.893
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   500.271
_cell_formula_units_Z   4
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  0.950  0.038  0.139  1.0
  Ho  Ho1  1  0.550  0.538  0.361  1.0
  Ho  Ho2  1  0.550  0.962  0.639  1.0
  Ho  Ho3  1  0.950  0.462  0.861  1.0
  Ho  Ho4  1  0.050  0.962  0.861  1.0
  Ho  Ho5  1  0.450  0.462  0.639  1.0
  Ho  Ho6  1  0.450  0.038  0.361  1.0
  Ho  Ho7  1  0.050  0.538  0.139  1.0
  B  B8  1  0.563  0.750  0.000  1.0
  B  B9  1  0.937  0.250  0.500  1.0
  B  B10  1  0.437  0.250  0.000  1.0
  B  B11  1  0.063  0.750  0.500  1.0
  B  B12  1  0.979  0.803  0.307  1.0
  B  B13  1  0.521  0.303  0.193  1.0
  B  B14  1  0.521  0.197  0.807  1.0
  B  B15  1  0.979  0.697  0.693  1.0
  B  B16  1  0.021  0.197  0.693  1.0
  B  B17  1  0.479  0.697  0.807  1.0
  B  B18  1  0.479  0.803  0.193  1.0
  B  B19  1  0.021  0.303  0.307  1.0
  O  O20  1  0.963  0.965  0.311  1.0
  O  O21  1  0.537  0.465  0.189  1.0
  O  O22  1  0.537  0.035  0.811  1.0
  O  O23  1  0.963  0.535  0.689  1.0
  O  O24  1  0.037  0.035  0.689  1.0
  O  O25  1  0.463  0.535  0.811  1.0
  O  O26  1  0.463  0.965  0.189  1.0
  O  O27  1  0.037  0.465  0.311  1.0
  O  O28  1  0.796  0.747  0.216  1.0
  O  O29  1  0.704  0.247  0.284  1.0
  O  O30  1  0.704  0.253  0.716  1.0
  O  O31  1  0.796  0.753  0.784  1.0
  O  O32  1  0.204  0.253  0.784  1.0
  O  O33  1  0.296  0.753  0.716  1.0
  O  O34  1  0.296  0.747  0.284  1.0
  O  O35  1  0.204  0.247  0.216  1.0
  O  O36  1  0.363  0.760  0.906  1.0
  O  O37  1  0.137  0.260  0.594  1.0
  O  O38  1  0.137  0.240  0.406  1.0
  O  O39  1  0.363  0.740  0.094  1.0
  O  O40  1  0.637  0.240  0.094  1.0
  O  O41  1  0.863  0.740  0.406  1.0
  O  O42  1  0.863  0.760  0.594  1.0
  O  O43  1  0.637  0.260  0.906  1.0
  O  O44  1  0.778  0.622  0.996  1.0
  O  O45  1  0.722  0.122  0.504  1.0
  O  O46  1  0.722  0.378  0.496  1.0
  O  O47  1  0.778  0.878  0.004  1.0
  O  O48  1  0.222  0.378  0.004  1.0
  O  O49  1  0.278  0.878  0.496  1.0
  O  O50  1  0.278  0.622  0.504  1.0
  O  O51  1  0.222  0.122  0.996  1.0
[/CIF]
.
The material structure described by Ho2B3O8 crystallizes in the orthorhombic Pbcn space group. Ho(1) is bonded in a 7-coordinate geometry to one O(2), one O(3), two equivalent O(4), and three equivalent O(1) atoms. There are two inequivalent B sites. In the first B site, B(1) is bonded to two equivalent O(3) and two equivalent O(4) atoms to form corner-sharing BO4 tetrahedra. In the second B site, B(2) is bonded to one O(1), one O(3), and two equivalent O(2) atoms to form corner-sharing BO4 tetrahedra. There are four inequivalent O sites. In the first O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Ho(1), one B(1), and one B(2) atom. In the second O site, O(4) is bonded in a distorted single-bond geometry to two equivalent Ho(1) and one B(1) atom. In the third O site, O(1) is bonded in a distorted single-bond geometry to three equivalent Ho(1) and one B(2) atom. In the fourth O site, O(2) is bonded in a distorted bent 120 degrees geometry to one Ho(1) and two equivalent B(2) atoms. is represented by the CIF file [CIF]
data_Ho2B3O8
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.362
_cell_length_b   8.895
_cell_length_c   12.893
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   500.271
_cell_formula_units_Z   4
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  0.950  0.038  0.139  1.0
  Ho  Ho1  1  0.550  0.538  0.361  1.0
  Ho  Ho2  1  0.550  0.962  0.639  1.0
  Ho  Ho3  1  0.950  0.462  0.861  1.0
  Ho  Ho4  1  0.050  0.962  0.861  1.0
  Ho  Ho5  1  0.450  0.462  0.639  1.0
  Ho  Ho6  1  0.450  0.038  0.361  1.0
  Ho  Ho7  1  0.050  0.538  0.139  1.0
  B  B8  1  0.563  0.750  0.000  1.0
  B  B9  1  0.937  0.250  0.500  1.0
  B  B10  1  0.437  0.250  0.000  1.0
  B  B11  1  0.063  0.750  0.500  1.0
  B  B12  1  0.979  0.803  0.307  1.0
  B  B13  1  0.521  0.303  0.193  1.0
  B  B14  1  0.521  0.197  0.807  1.0
  B  B15  1  0.979  0.697  0.693  1.0
  B  B16  1  0.021  0.197  0.693  1.0
  B  B17  1  0.479  0.697  0.807  1.0
  B  B18  1  0.479  0.803  0.193  1.0
  B  B19  1  0.021  0.303  0.307  1.0
  O  O20  1  0.963  0.965  0.311  1.0
  O  O21  1  0.537  0.465  0.189  1.0
  O  O22  1  0.537  0.035  0.811  1.0
  O  O23  1  0.963  0.535  0.689  1.0
  O  O24  1  0.037  0.035  0.689  1.0
  O  O25  1  0.463  0.535  0.811  1.0
  O  O26  1  0.463  0.965  0.189  1.0
  O  O27  1  0.037  0.465  0.311  1.0
  O  O28  1  0.796  0.747  0.216  1.0
  O  O29  1  0.704  0.247  0.284  1.0
  O  O30  1  0.704  0.253  0.716  1.0
  O  O31  1  0.796  0.753  0.784  1.0
  O  O32  1  0.204  0.253  0.784  1.0
  O  O33  1  0.296  0.753  0.716  1.0
  O  O34  1  0.296  0.747  0.284  1.0
  O  O35  1  0.204  0.247  0.216  1.0
  O  O36  1  0.363  0.760  0.906  1.0
  O  O37  1  0.137  0.260  0.594  1.0
  O  O38  1  0.137  0.240  0.406  1.0
  O  O39  1  0.363  0.740  0.094  1.0
  O  O40  1  0.637  0.240  0.094  1.0
  O  O41  1  0.863  0.740  0.406  1.0
  O  O42  1  0.863  0.760  0.594  1.0
  O  O43  1  0.637  0.260  0.906  1.0
  O  O44  1  0.778  0.622  0.996  1.0
  O  O45  1  0.722  0.122  0.504  1.0
  O  O46  1  0.722  0.378  0.496  1.0
  O  O47  1  0.778  0.878  0.004  1.0
  O  O48  1  0.222  0.378  0.004  1.0
  O  O49  1  0.278  0.878  0.496  1.0
  O  O50  1  0.278  0.622  0.504  1.0
  O  O51  1  0.222  0.122  0.996  1.0
[/CIF]
.