data_CrSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.78
_cell_length_b   2.78
_cell_length_c   3.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   CrSi
_chemical_formula_sum   'Cr1 Si1'
_cell_volume   24.17
_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
  Cr  Cr0  1  0.39  0.39  0.56  1.0
  Si  Si1  1  0.0  0.0  0.0  1.0

data_CrSi
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.94
_cell_length_b   3.94
_cell_length_c   3.12
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   CrSi
_chemical_formula_sum   'Cr2 Si2'
_cell_volume   48.34
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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
  Cr  Cr0  2  0.39  0.0  0.56  1.0
  Si  Si1  2  0.0  0.0  0.0  1.0

Cr Si
CrSi is Tetraauricupride structured and crystallizes in the monoclinic Cm space group. Cr(1) is bonded in a 4-coordinate geometry to four equivalent Si(1) atoms. There are a spread of Cr(1)-Si(1) bond distances ranging from 2.06-2.44 Å. Si(1) is bonded in a 4-coordinate geometry to four equivalent Cr(1) atoms.