The crystal structure described by HfCoSn crystallizes in the hexagonal P-62c space group. Hf(1) is bonded in a 11-coordinate geometry to one Co(2), four equivalent Co(1), and six equivalent Sn(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(2) is bonded in a 9-coordinate geometry to three equivalent Hf(1) and six equivalent Sn(1) atoms. In the second Co site, Co(1) is bonded in a 9-coordinate geometry to six equivalent Hf(1) and three equivalent Sn(1) atoms. Sn(1) is bonded in a 10-coordinate geometry to six equivalent Hf(1), two equivalent Co(1), and two equivalent Co(2) atoms. is represented by the CIF file [CIF]
data_HfCoSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.056
_cell_length_b   7.056
_cell_length_c   7.103
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   306.263
_cell_formula_units_Z   6
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  0.007  0.401  0.750  1.0
  Hf  Hf1  1  0.599  0.607  0.750  1.0
  Hf  Hf2  1  0.393  0.993  0.750  1.0
  Hf  Hf3  1  0.993  0.393  0.250  1.0
  Hf  Hf4  1  0.607  0.599  0.250  1.0
  Hf  Hf5  1  0.401  0.007  0.250  1.0
  Co  Co6  1  0.333  0.667  0.464  1.0
  Co  Co7  1  0.667  0.333  0.536  1.0
  Co  Co8  1  0.333  0.667  0.036  1.0
  Co  Co9  1  0.000  0.000  0.750  1.0
  Co  Co10  1  0.000  0.000  0.250  1.0
  Co  Co11  1  0.667  0.333  0.964  1.0
  Sn  Sn12  1  0.268  0.268  0.500  1.0
  Sn  Sn13  1  1.000  0.732  0.500  1.0
  Sn  Sn14  1  1.000  0.732  1.000  1.0
  Sn  Sn15  1  0.732  0.000  0.500  1.0
  Sn  Sn16  1  0.732  0.000  1.000  1.0
  Sn  Sn17  1  0.268  0.268  1.000  1.0
[/CIF]
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The crystal structure described by HfCoSn crystallizes in the hexagonal P-62c space group. Hf(1) is bonded in a 11-coordinate geometry to one Co(2), four equivalent Co(1), and six equivalent Sn(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(2) is bonded in a 9-coordinate geometry to three equivalent Hf(1) and six equivalent Sn(1) atoms. In the second Co site, Co(1) is bonded in a 9-coordinate geometry to six equivalent Hf(1) and three equivalent Sn(1) atoms. Sn(1) is bonded in a 10-coordinate geometry to six equivalent Hf(1), two equivalent Co(1), and two equivalent Co(2) atoms. is represented by the CIF file [CIF]
data_HfCoSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.056
_cell_length_b   7.056
_cell_length_c   7.103
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   306.263
_cell_formula_units_Z   6
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  0.007  0.401  0.750  1.0
  Hf  Hf1  1  0.599  0.607  0.750  1.0
  Hf  Hf2  1  0.393  0.993  0.750  1.0
  Hf  Hf3  1  0.993  0.393  0.250  1.0
  Hf  Hf4  1  0.607  0.599  0.250  1.0
  Hf  Hf5  1  0.401  0.007  0.250  1.0
  Co  Co6  1  0.333  0.667  0.464  1.0
  Co  Co7  1  0.667  0.333  0.536  1.0
  Co  Co8  1  0.333  0.667  0.036  1.0
  Co  Co9  1  0.000  0.000  0.750  1.0
  Co  Co10  1  0.000  0.000  0.250  1.0
  Co  Co11  1  0.667  0.333  0.964  1.0
  Sn  Sn12  1  0.268  0.268  0.500  1.0
  Sn  Sn13  1  1.000  0.732  0.500  1.0
  Sn  Sn14  1  1.000  0.732  1.000  1.0
  Sn  Sn15  1  0.732  0.000  0.500  1.0
  Sn  Sn16  1  0.732  0.000  1.000  1.0
  Sn  Sn17  1  0.268  0.268  1.000  1.0
[/CIF]
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