The material structure described by Ho4(CoB2)3 crystallizes in the trigonal R-3m space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 6-coordinate geometry to three equivalent Co(1) and six equivalent B(1) atoms. In the second Ho site, Ho(2) is bonded in a 6-coordinate geometry to three equivalent Co(1) and six equivalent B(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 14-coordinate geometry to six equivalent Ho(1), six equivalent Ho(2), and two equivalent Co(2) atoms. In the second Co site, Co(2) is bonded in a 7-coordinate geometry to one Co(1) and six equivalent B(1) atoms. B(1) is bonded in a 9-coordinate geometry to two equivalent Ho(1), two equivalent Ho(2), two equivalent Co(2), and three equivalent B(1) atoms. is represented by the CIF card [CIF]
data_Ho4(CoB2)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.285
_cell_length_b   5.285
_cell_length_c   7.884
_cell_angle_alpha   70.415
_cell_angle_beta   70.415
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   175.850
_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
  Ho  Ho0  1  0.745  0.745  0.765  1.0
  Ho  Ho1  1  0.255  0.255  0.235  1.0
  Ho  Ho2  1  0.588  0.588  0.235  1.0
  Ho  Ho3  1  0.412  0.412  0.765  1.0
  Co  Co4  1  0.000  0.000  0.000  1.0
  Co  Co5  1  0.887  0.887  0.338  1.0
  Co  Co6  1  0.113  0.113  0.662  1.0
  B  B7  1  0.500  0.168  0.500  1.0
  B  B8  1  0.832  0.500  0.500  1.0
  B  B9  1  0.168  0.832  0.500  1.0
  B  B10  1  0.168  0.500  0.500  1.0
  B  B11  1  0.832  0.168  0.500  1.0
  B  B12  1  0.500  0.832  0.500  1.0
[/CIF]
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The material structure described by Ho4(CoB2)3 crystallizes in the trigonal R-3m space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded in a 6-coordinate geometry to three equivalent Co(1) and six equivalent B(1) atoms. In the second Ho site, Ho(2) is bonded in a 6-coordinate geometry to three equivalent Co(1) and six equivalent B(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded in a 14-coordinate geometry to six equivalent Ho(1), six equivalent Ho(2), and two equivalent Co(2) atoms. In the second Co site, Co(2) is bonded in a 7-coordinate geometry to one Co(1) and six equivalent B(1) atoms. B(1) is bonded in a 9-coordinate geometry to two equivalent Ho(1), two equivalent Ho(2), two equivalent Co(2), and three equivalent B(1) atoms. is represented by the CIF card [CIF]
data_Ho4(CoB2)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.285
_cell_length_b   5.285
_cell_length_c   7.884
_cell_angle_alpha   70.415
_cell_angle_beta   70.415
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   175.850
_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
  Ho  Ho0  1  0.745  0.745  0.765  1.0
  Ho  Ho1  1  0.255  0.255  0.235  1.0
  Ho  Ho2  1  0.588  0.588  0.235  1.0
  Ho  Ho3  1  0.412  0.412  0.765  1.0
  Co  Co4  1  0.000  0.000  0.000  1.0
  Co  Co5  1  0.887  0.887  0.338  1.0
  Co  Co6  1  0.113  0.113  0.662  1.0
  B  B7  1  0.500  0.168  0.500  1.0
  B  B8  1  0.832  0.500  0.500  1.0
  B  B9  1  0.168  0.832  0.500  1.0
  B  B10  1  0.168  0.500  0.500  1.0
  B  B11  1  0.832  0.168  0.500  1.0
  B  B12  1  0.500  0.832  0.500  1.0
[/CIF]
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