The structure described by TaNiIn is half-Heusler structured and crystallizes in the cubic F-43m space group. Ta(1) is bonded in a body-centered cubic geometry to four equivalent Ni(1) and four equivalent In(1) atoms. Ni(1) is bonded to four equivalent Ta(1) and six equivalent In(1) atoms to form distorted NiTa4In6 tetrahedra that share corners with four equivalent In(1)Ta4Ni6 tetrahedra, corners with six equivalent Ni(1)Ta4In6 tetrahedra, edges with six equivalent In(1)Ta4Ni6 tetrahedra, and faces with twelve equivalent Ni(1)Ta4In6 tetrahedra. In(1) is bonded to four equivalent Ta(1) and six equivalent Ni(1) atoms to form distorted InTa4Ni6 tetrahedra that share corners with four equivalent Ni(1)Ta4In6 tetrahedra, corners with six equivalent In(1)Ta4Ni6 tetrahedra, edges with six equivalent Ni(1)Ta4In6 tetrahedra, and faces with twelve equivalent In(1)Ta4Ni6 tetrahedra. is represented by the CIF file [CIF]
data_TaInNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.383
_cell_length_b   4.383
_cell_length_c   4.383
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   59.534
_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
  Ta  Ta0  1  0.250  0.250  0.250  1.0
  In  In1  1  0.000  0.000  0.000  1.0
  Ni  Ni2  1  0.500  0.500  0.500  1.0
[/CIF]
.
The structure described by TaNiIn is half-Heusler structured and crystallizes in the cubic F-43m space group. Ta(1) is bonded in a body-centered cubic geometry to four equivalent Ni(1) and four equivalent In(1) atoms. Ni(1) is bonded to four equivalent Ta(1) and six equivalent In(1) atoms to form distorted NiTa4In6 tetrahedra that share corners with four equivalent In(1)Ta4Ni6 tetrahedra, corners with six equivalent Ni(1)Ta4In6 tetrahedra, edges with six equivalent In(1)Ta4Ni6 tetrahedra, and faces with twelve equivalent Ni(1)Ta4In6 tetrahedra. In(1) is bonded to four equivalent Ta(1) and six equivalent Ni(1) atoms to form distorted InTa4Ni6 tetrahedra that share corners with four equivalent Ni(1)Ta4In6 tetrahedra, corners with six equivalent In(1)Ta4Ni6 tetrahedra, edges with six equivalent Ni(1)Ta4In6 tetrahedra, and faces with twelve equivalent In(1)Ta4Ni6 tetrahedra. is represented by the CIF file [CIF]
data_TaInNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.383
_cell_length_b   4.383
_cell_length_c   4.383
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   59.534
_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
  Ta  Ta0  1  0.250  0.250  0.250  1.0
  In  In1  1  0.000  0.000  0.000  1.0
  Ni  Ni2  1  0.500  0.500  0.500  1.0
[/CIF]
.