The crystal structure described by Hf3Ta is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Hf(1) is bonded to eight equivalent Hf(1) and four equivalent Ta(1) atoms to form HfHf8Ta4 cuboctahedra that share corners with twelve equivalent Hf(1)Hf8Ta4 cuboctahedra, edges with eight equivalent Ta(1)Hf12 cuboctahedra, edges with sixteen equivalent Hf(1)Hf8Ta4 cuboctahedra, faces with four equivalent Ta(1)Hf12 cuboctahedra, and faces with fourteen equivalent Hf(1)Hf8Ta4 cuboctahedra. Ta(1) is bonded to twelve equivalent Hf(1) atoms to form TaHf12 cuboctahedra that share corners with twelve equivalent Ta(1)Hf12 cuboctahedra, edges with twenty-four equivalent Hf(1)Hf8Ta4 cuboctahedra, faces with six equivalent Ta(1)Hf12 cuboctahedra, and faces with twelve equivalent Hf(1)Hf8Ta4 cuboctahedra. is represented by the CIF card [CIF]
data_Hf3Ta
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.407
_cell_length_b   4.407
_cell_length_c   4.407
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   85.584
_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
  Hf  Hf0  1  0.000  0.500  0.500  1.0
  Hf  Hf1  1  0.500  0.000  0.500  1.0
  Hf  Hf2  1  0.500  0.500  0.000  1.0
  Ta  Ta3  1  0.000  0.000  0.000  1.0
[/CIF]
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The crystal structure described by Hf3Ta is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. Hf(1) is bonded to eight equivalent Hf(1) and four equivalent Ta(1) atoms to form HfHf8Ta4 cuboctahedra that share corners with twelve equivalent Hf(1)Hf8Ta4 cuboctahedra, edges with eight equivalent Ta(1)Hf12 cuboctahedra, edges with sixteen equivalent Hf(1)Hf8Ta4 cuboctahedra, faces with four equivalent Ta(1)Hf12 cuboctahedra, and faces with fourteen equivalent Hf(1)Hf8Ta4 cuboctahedra. Ta(1) is bonded to twelve equivalent Hf(1) atoms to form TaHf12 cuboctahedra that share corners with twelve equivalent Ta(1)Hf12 cuboctahedra, edges with twenty-four equivalent Hf(1)Hf8Ta4 cuboctahedra, faces with six equivalent Ta(1)Hf12 cuboctahedra, and faces with twelve equivalent Hf(1)Hf8Ta4 cuboctahedra. is represented by the CIF card [CIF]
data_Hf3Ta
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.407
_cell_length_b   4.407
_cell_length_c   4.407
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   85.584
_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
  Hf  Hf0  1  0.000  0.500  0.500  1.0
  Hf  Hf1  1  0.500  0.000  0.500  1.0
  Hf  Hf2  1  0.500  0.500  0.000  1.0
  Ta  Ta3  1  0.000  0.000  0.000  1.0
[/CIF]
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