The material structure described by Ho3As is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to four equivalent Ho(1), four equivalent Ho(2), and four equivalent As(1) atoms to form distorted HoHo8As4 cuboctahedra that share corners with twelve equivalent Ho(1)Ho8As4 cuboctahedra, edges with eight equivalent Ho(1)Ho8As4 cuboctahedra, edges with eight equivalent As(1)Ho12 cuboctahedra, faces with four equivalent As(1)Ho12 cuboctahedra, and faces with ten equivalent Ho(1)Ho8As4 cuboctahedra. In the second Ho site, Ho(2) is bonded in a square co-planar geometry to eight equivalent Ho(1) and four equivalent As(1) atoms. As(1) is bonded to four equivalent Ho(2) and eight equivalent Ho(1) atoms to form AsHo12 cuboctahedra that share corners with four equivalent As(1)Ho12 cuboctahedra, edges with eight equivalent As(1)Ho12 cuboctahedra, edges with sixteen equivalent Ho(1)Ho8As4 cuboctahedra, faces with four equivalent As(1)Ho12 cuboctahedra, and faces with eight equivalent Ho(1)Ho8As4 cuboctahedra. is represented by the CIF card [CIF]
data_Ho3As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.042
_cell_length_b   6.042
_cell_length_c   6.042
_cell_angle_alpha   136.591
_cell_angle_beta   136.591
_cell_angle_gamma   63.068
_symmetry_Int_Tables_number   1
_cell_volume   102.831
_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  0.750  0.250  0.500  1.0
  Ho  Ho1  1  0.250  0.750  0.500  1.0
  Ho  Ho2  1  0.500  0.500  0.000  1.0
  As  As3  1  0.000  0.000  0.000  1.0
[/CIF]
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The material structure described by Ho3As is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Ho sites. In the first Ho site, Ho(1) is bonded to four equivalent Ho(1), four equivalent Ho(2), and four equivalent As(1) atoms to form distorted HoHo8As4 cuboctahedra that share corners with twelve equivalent Ho(1)Ho8As4 cuboctahedra, edges with eight equivalent Ho(1)Ho8As4 cuboctahedra, edges with eight equivalent As(1)Ho12 cuboctahedra, faces with four equivalent As(1)Ho12 cuboctahedra, and faces with ten equivalent Ho(1)Ho8As4 cuboctahedra. In the second Ho site, Ho(2) is bonded in a square co-planar geometry to eight equivalent Ho(1) and four equivalent As(1) atoms. As(1) is bonded to four equivalent Ho(2) and eight equivalent Ho(1) atoms to form AsHo12 cuboctahedra that share corners with four equivalent As(1)Ho12 cuboctahedra, edges with eight equivalent As(1)Ho12 cuboctahedra, edges with sixteen equivalent Ho(1)Ho8As4 cuboctahedra, faces with four equivalent As(1)Ho12 cuboctahedra, and faces with eight equivalent Ho(1)Ho8As4 cuboctahedra. is represented by the CIF card [CIF]
data_Ho3As
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.042
_cell_length_b   6.042
_cell_length_c   6.042
_cell_angle_alpha   136.591
_cell_angle_beta   136.591
_cell_angle_gamma   63.068
_symmetry_Int_Tables_number   1
_cell_volume   102.831
_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  0.750  0.250  0.500  1.0
  Ho  Ho1  1  0.250  0.750  0.500  1.0
  Ho  Ho2  1  0.500  0.500  0.000  1.0
  As  As3  1  0.000  0.000  0.000  1.0
[/CIF]
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