The compound described by Hf2TlC is H-Phase structured and crystallizes in the hexagonal P6_3/mmc space group. Hf(1) is bonded in a 3-coordinate geometry to three equivalent Tl(1) and three equivalent C(1) atoms. Tl(1) is bonded to six equivalent Hf(1) atoms to form distorted TlHf6 cuboctahedra that share corners with six equivalent C(1)Hf6 octahedra, edges with six equivalent Tl(1)Hf6 cuboctahedra, and edges with six equivalent C(1)Hf6 octahedra. The corner-sharing octahedral tilt angles are 20°. C(1) is bonded to six equivalent Hf(1) atoms to form CHf6 octahedra that share corners with six equivalent Tl(1)Hf6 cuboctahedra, edges with six equivalent Tl(1)Hf6 cuboctahedra, and edges with six equivalent C(1)Hf6 octahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Hf2TlC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.329
_cell_length_b   3.329
_cell_length_c   14.728
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   141.328
_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
  Hf  Hf0  1  0.333  0.667  0.418  1.0
  Hf  Hf1  1  0.667  0.333  0.582  1.0
  Hf  Hf2  1  0.667  0.333  0.918  1.0
  Hf  Hf3  1  0.333  0.667  0.082  1.0
  Tl  Tl4  1  0.333  0.667  0.750  1.0
  Tl  Tl5  1  0.667  0.333  0.250  1.0
  C  C6  1  0.000  0.000  0.500  1.0
  C  C7  1  0.000  0.000  0.000  1.0
[/CIF]
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The compound described by Hf2TlC is H-Phase structured and crystallizes in the hexagonal P6_3/mmc space group. Hf(1) is bonded in a 3-coordinate geometry to three equivalent Tl(1) and three equivalent C(1) atoms. Tl(1) is bonded to six equivalent Hf(1) atoms to form distorted TlHf6 cuboctahedra that share corners with six equivalent C(1)Hf6 octahedra, edges with six equivalent Tl(1)Hf6 cuboctahedra, and edges with six equivalent C(1)Hf6 octahedra. The corner-sharing octahedral tilt angles are 20°. C(1) is bonded to six equivalent Hf(1) atoms to form CHf6 octahedra that share corners with six equivalent Tl(1)Hf6 cuboctahedra, edges with six equivalent Tl(1)Hf6 cuboctahedra, and edges with six equivalent C(1)Hf6 octahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_Hf2TlC
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.329
_cell_length_b   3.329
_cell_length_c   14.728
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   141.328
_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
  Hf  Hf0  1  0.333  0.667  0.418  1.0
  Hf  Hf1  1  0.667  0.333  0.582  1.0
  Hf  Hf2  1  0.667  0.333  0.918  1.0
  Hf  Hf3  1  0.333  0.667  0.082  1.0
  Tl  Tl4  1  0.333  0.667  0.750  1.0
  Tl  Tl5  1  0.667  0.333  0.250  1.0
  C  C6  1  0.000  0.000  0.500  1.0
  C  C7  1  0.000  0.000  0.000  1.0
[/CIF]
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