The material described by SmSi crystallizes in the orthorhombic Pnma space group. Sm(1) is bonded in a 7-coordinate geometry to seven equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to seven equivalent Sm(1) and two equivalent Si(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SmSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.895
_cell_length_b   8.138
_cell_length_c   5.846
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   185.303
_cell_formula_units_Z   4
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  0.750  0.821  0.386  1.0
  Sm  Sm1  1  0.250  0.179  0.614  1.0
  Sm  Sm2  1  0.250  0.679  0.886  1.0
  Sm  Sm3  1  0.750  0.321  0.114  1.0
  Si  Si4  1  0.750  0.964  0.877  1.0
  Si  Si5  1  0.250  0.036  0.123  1.0
  Si  Si6  1  0.250  0.536  0.377  1.0
  Si  Si7  1  0.750  0.464  0.623  1.0
[/CIF]
.
The material described by SmSi crystallizes in the orthorhombic Pnma space group. Sm(1) is bonded in a 7-coordinate geometry to seven equivalent Si(1) atoms. Si(1) is bonded in a 9-coordinate geometry to seven equivalent Sm(1) and two equivalent Si(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SmSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.895
_cell_length_b   8.138
_cell_length_c   5.846
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   185.303
_cell_formula_units_Z   4
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  0.750  0.821  0.386  1.0
  Sm  Sm1  1  0.250  0.179  0.614  1.0
  Sm  Sm2  1  0.250  0.679  0.886  1.0
  Sm  Sm3  1  0.750  0.321  0.114  1.0
  Si  Si4  1  0.750  0.964  0.877  1.0
  Si  Si5  1  0.250  0.036  0.123  1.0
  Si  Si6  1  0.250  0.536  0.377  1.0
  Si  Si7  1  0.750  0.464  0.623  1.0
[/CIF]
.