The structure described by HoAsSe is Matlockite structured and crystallizes in the orthorhombic Pmmn space group. Ho(1) is bonded in a 9-coordinate geometry to four equivalent As(1) and five equivalent Se(1) atoms. As(1) is bonded in a 8-coordinate geometry to four equivalent Ho(1) and four equivalent As(1) atoms. Se(1) is bonded to five equivalent Ho(1) atoms to form a mixture of distorted corner and edge-sharing SeHo5 trigonal bipyramids. is represented by the CIF card [CIF]
data_HoAsSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.899
_cell_length_b   3.918
_cell_length_c   8.762
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   133.838
_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  0.750  0.250  0.722  1.0
  Ho  Ho1  1  0.250  0.750  0.278  1.0
  As  As2  1  0.250  0.250  0.002  1.0
  As  As3  1  0.750  0.750  0.998  1.0
  Se  Se4  1  0.750  0.250  0.376  1.0
  Se  Se5  1  0.250  0.750  0.624  1.0
[/CIF]
.
The structure described by HoAsSe is Matlockite structured and crystallizes in the orthorhombic Pmmn space group. Ho(1) is bonded in a 9-coordinate geometry to four equivalent As(1) and five equivalent Se(1) atoms. As(1) is bonded in a 8-coordinate geometry to four equivalent Ho(1) and four equivalent As(1) atoms. Se(1) is bonded to five equivalent Ho(1) atoms to form a mixture of distorted corner and edge-sharing SeHo5 trigonal bipyramids. is represented by the CIF card [CIF]
data_HoAsSe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.899
_cell_length_b   3.918
_cell_length_c   8.762
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   133.838
_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  0.750  0.250  0.722  1.0
  Ho  Ho1  1  0.250  0.750  0.278  1.0
  As  As2  1  0.250  0.250  0.002  1.0
  As  As3  1  0.750  0.750  0.998  1.0
  Se  Se4  1  0.750  0.250  0.376  1.0
  Se  Se5  1  0.250  0.750  0.624  1.0
[/CIF]
.