The structure described by SmNiSb is hexagonal omega structure-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Sm(1) is bonded to six equivalent Ni(1) and six equivalent Sb(1) atoms to form a mixture of edge and face-sharing SmNi6Sb6 cuboctahedra. Ni(1) is bonded in a 9-coordinate geometry to six equivalent Sm(1) and three equivalent Sb(1) atoms. Sb(1) is bonded in a 9-coordinate geometry to six equivalent Sm(1) and three equivalent Ni(1) atoms. is represented by the CIF card [CIF]
data_SmNiSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.317
_cell_length_b   4.317
_cell_length_c   8.187
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.999
_symmetry_Int_Tables_number   1
_cell_volume   132.157
_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
  Sm  Sm0  1  1.000  1.000  1.000  1.0
  Sm  Sm1  1  0.000  1.000  0.500  1.0
  Ni  Ni2  1  0.667  0.333  0.750  1.0
  Ni  Ni3  1  0.333  0.667  0.250  1.0
  Sb  Sb4  1  0.667  0.333  0.250  1.0
  Sb  Sb5  1  0.333  0.667  0.750  1.0
[/CIF]
.
The structure described by SmNiSb is hexagonal omega structure-derived structured and crystallizes in the hexagonal P6_3/mmc space group. Sm(1) is bonded to six equivalent Ni(1) and six equivalent Sb(1) atoms to form a mixture of edge and face-sharing SmNi6Sb6 cuboctahedra. Ni(1) is bonded in a 9-coordinate geometry to six equivalent Sm(1) and three equivalent Sb(1) atoms. Sb(1) is bonded in a 9-coordinate geometry to six equivalent Sm(1) and three equivalent Ni(1) atoms. is represented by the CIF card [CIF]
data_SmNiSb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.317
_cell_length_b   4.317
_cell_length_c   8.187
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   119.999
_symmetry_Int_Tables_number   1
_cell_volume   132.157
_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
  Sm  Sm0  1  1.000  1.000  1.000  1.0
  Sm  Sm1  1  0.000  1.000  0.500  1.0
  Ni  Ni2  1  0.667  0.333  0.750  1.0
  Ni  Ni3  1  0.333  0.667  0.250  1.0
  Sb  Sb4  1  0.667  0.333  0.250  1.0
  Sb  Sb5  1  0.333  0.667  0.750  1.0
[/CIF]
.