The crystal structure described by SmCuSi is hexagonal omega structure-derived structured and crystallizes in the hexagonal P-6m2 space group. Sm(1) is bonded to six equivalent Cu(1) and six equivalent Si(1) atoms to form a mixture of edge and face-sharing SmCu6Si6 cuboctahedra. Cu(1) is bonded in a 9-coordinate geometry to six equivalent Sm(1) and three equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to six equivalent Sm(1) and three equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_SmCuSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.098
_cell_length_b   4.098
_cell_length_c   4.089
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   59.470
_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
  Sm  Sm0  1  0.333  0.667  0.000  1.0
  Cu  Cu1  1  0.667  0.333  0.500  1.0
  Si  Si2  1  0.000  0.000  0.500  1.0
[/CIF]
.
The crystal structure described by SmCuSi is hexagonal omega structure-derived structured and crystallizes in the hexagonal P-6m2 space group. Sm(1) is bonded to six equivalent Cu(1) and six equivalent Si(1) atoms to form a mixture of edge and face-sharing SmCu6Si6 cuboctahedra. Cu(1) is bonded in a 9-coordinate geometry to six equivalent Sm(1) and three equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to six equivalent Sm(1) and three equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_SmCuSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.098
_cell_length_b   4.098
_cell_length_c   4.089
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   59.470
_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
  Sm  Sm0  1  0.333  0.667  0.000  1.0
  Cu  Cu1  1  0.667  0.333  0.500  1.0
  Si  Si2  1  0.000  0.000  0.500  1.0
[/CIF]
.