The crystal structure described by Ca3Ho is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ca(1) is bonded to eight equivalent Ca(1) and four equivalent Ho(1) atoms to form CaCa8Ho4 cuboctahedra that share corners with twelve equivalent Ca(1)Ca8Ho4 cuboctahedra, edges with eight equivalent Ho(1)Ca12 cuboctahedra, edges with sixteen equivalent Ca(1)Ca8Ho4 cuboctahedra, faces with four equivalent Ho(1)Ca12 cuboctahedra, and faces with fourteen equivalent Ca(1)Ca8Ho4 cuboctahedra. Ho(1) is bonded to twelve equivalent Ca(1) atoms to form HoCa12 cuboctahedra that share corners with twelve equivalent Ho(1)Ca12 cuboctahedra, edges with twenty-four equivalent Ca(1)Ca8Ho4 cuboctahedra, faces with six equivalent Ho(1)Ca12 cuboctahedra, and faces with twelve equivalent Ca(1)Ca8Ho4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ca3Ho
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.346
_cell_length_b   5.346
_cell_length_c   5.346
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   152.800
_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
  Ca  Ca0  1  0.500  0.000  0.500  1.0
  Ca  Ca1  1  0.500  0.500  0.000  1.0
  Ca  Ca2  1  0.000  0.500  0.500  1.0
  Ho  Ho3  1  0.000  0.000  0.000  1.0
[/CIF]
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The crystal structure described by Ca3Ho is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Ca(1) is bonded to eight equivalent Ca(1) and four equivalent Ho(1) atoms to form CaCa8Ho4 cuboctahedra that share corners with twelve equivalent Ca(1)Ca8Ho4 cuboctahedra, edges with eight equivalent Ho(1)Ca12 cuboctahedra, edges with sixteen equivalent Ca(1)Ca8Ho4 cuboctahedra, faces with four equivalent Ho(1)Ca12 cuboctahedra, and faces with fourteen equivalent Ca(1)Ca8Ho4 cuboctahedra. Ho(1) is bonded to twelve equivalent Ca(1) atoms to form HoCa12 cuboctahedra that share corners with twelve equivalent Ho(1)Ca12 cuboctahedra, edges with twenty-four equivalent Ca(1)Ca8Ho4 cuboctahedra, faces with six equivalent Ho(1)Ca12 cuboctahedra, and faces with twelve equivalent Ca(1)Ca8Ho4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Ca3Ho
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.346
_cell_length_b   5.346
_cell_length_c   5.346
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   152.800
_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
  Ca  Ca0  1  0.500  0.000  0.500  1.0
  Ca  Ca1  1  0.500  0.500  0.000  1.0
  Ca  Ca2  1  0.000  0.500  0.500  1.0
  Ho  Ho3  1  0.000  0.000  0.000  1.0
[/CIF]
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