The crystal structure described by CaSi crystallizes in the orthorhombic Cmcm space group. Ca(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 Ca(1) and two equivalent Si(1) atoms. is represented by the CIF card [CIF]
data_CaSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.905
_cell_length_b   4.555
_cell_length_c   5.811
_cell_angle_alpha   113.076
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   95.094
_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
  Ca  Ca0  1  0.250  0.861  0.723  1.0
  Ca  Ca1  1  0.750  0.139  0.277  1.0
  Si  Si2  1  0.250  0.568  0.137  1.0
  Si  Si3  1  0.750  0.432  0.863  1.0
[/CIF]
.
The crystal structure described by CaSi crystallizes in the orthorhombic Cmcm space group. Ca(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 Ca(1) and two equivalent Si(1) atoms. is represented by the CIF card [CIF]
data_CaSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.905
_cell_length_b   4.555
_cell_length_c   5.811
_cell_angle_alpha   113.076
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   95.094
_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
  Ca  Ca0  1  0.250  0.861  0.723  1.0
  Ca  Ca1  1  0.750  0.139  0.277  1.0
  Si  Si2  1  0.250  0.568  0.137  1.0
  Si  Si3  1  0.750  0.432  0.863  1.0
[/CIF]
.