The crystal structure described by CeSi crystallizes in the orthorhombic Pnma space group. Ce(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 Ce(1) and two equivalent Si(1) atoms. is represented by the CIF card [CIF]
data_CeSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.964
_cell_length_b   5.965
_cell_length_c   8.271
_cell_angle_alpha   89.999
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   195.572
_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
  Ce  Ce0  1  0.250  0.385  0.680  1.0
  Ce  Ce1  1  0.750  0.615  0.320  1.0
  Ce  Ce2  1  0.750  0.885  0.820  1.0
  Ce  Ce3  1  0.250  0.115  0.180  1.0
  Si  Si4  1  0.250  0.885  0.533  1.0
  Si  Si5  1  0.750  0.115  0.467  1.0
  Si  Si6  1  0.750  0.385  0.967  1.0
  Si  Si7  1  0.250  0.615  0.033  1.0
[/CIF]
.
The crystal structure described by CeSi crystallizes in the orthorhombic Pnma space group. Ce(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 Ce(1) and two equivalent Si(1) atoms. is represented by the CIF card [CIF]
data_CeSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.964
_cell_length_b   5.965
_cell_length_c   8.271
_cell_angle_alpha   89.999
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   195.572
_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
  Ce  Ce0  1  0.250  0.385  0.680  1.0
  Ce  Ce1  1  0.750  0.615  0.320  1.0
  Ce  Ce2  1  0.750  0.885  0.820  1.0
  Ce  Ce3  1  0.250  0.115  0.180  1.0
  Si  Si4  1  0.250  0.885  0.533  1.0
  Si  Si5  1  0.750  0.115  0.467  1.0
  Si  Si6  1  0.750  0.385  0.967  1.0
  Si  Si7  1  0.250  0.615  0.033  1.0
[/CIF]
.