The compound described by Ca2Ir2Si crystallizes in the monoclinic C2/c space group. Ca(1) is bonded in a 7-coordinate geometry to six equivalent Ir(1) and one Si(1) atom. Ir(1) is bonded in a 9-coordinate geometry to six equivalent Ca(1), one Ir(1), and two equivalent Si(1) atoms. Si(1) is bonded in a 4-coordinate geometry to two equivalent Ca(1) and four equivalent Ir(1) atoms. is represented by the CIF file [CIF]
data_Ca2SiIr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.652
_cell_length_b   5.652
_cell_length_c   7.312
_cell_angle_alpha   80.978
_cell_angle_beta   80.978
_cell_angle_gamma   61.941
_symmetry_Int_Tables_number   1
_cell_volume   202.645
_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  0.723  0.985  0.139  1.0
  Ca  Ca1  1  0.015  0.277  0.361  1.0
  Ca  Ca2  1  0.277  0.015  0.861  1.0
  Ca  Ca3  1  0.985  0.723  0.639  1.0
  Si  Si4  1  0.565  0.435  0.750  1.0
  Si  Si5  1  0.435  0.565  0.250  1.0
  Ir  Ir6  1  0.776  0.490  0.990  1.0
  Ir  Ir7  1  0.510  0.224  0.510  1.0
  Ir  Ir8  1  0.224  0.510  0.010  1.0
  Ir  Ir9  1  0.490  0.776  0.490  1.0
[/CIF]
.
The compound described by Ca2Ir2Si crystallizes in the monoclinic C2/c space group. Ca(1) is bonded in a 7-coordinate geometry to six equivalent Ir(1) and one Si(1) atom. Ir(1) is bonded in a 9-coordinate geometry to six equivalent Ca(1), one Ir(1), and two equivalent Si(1) atoms. Si(1) is bonded in a 4-coordinate geometry to two equivalent Ca(1) and four equivalent Ir(1) atoms. is represented by the CIF file [CIF]
data_Ca2SiIr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.652
_cell_length_b   5.652
_cell_length_c   7.312
_cell_angle_alpha   80.978
_cell_angle_beta   80.978
_cell_angle_gamma   61.941
_symmetry_Int_Tables_number   1
_cell_volume   202.645
_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  0.723  0.985  0.139  1.0
  Ca  Ca1  1  0.015  0.277  0.361  1.0
  Ca  Ca2  1  0.277  0.015  0.861  1.0
  Ca  Ca3  1  0.985  0.723  0.639  1.0
  Si  Si4  1  0.565  0.435  0.750  1.0
  Si  Si5  1  0.435  0.565  0.250  1.0
  Ir  Ir6  1  0.776  0.490  0.990  1.0
  Ir  Ir7  1  0.510  0.224  0.510  1.0
  Ir  Ir8  1  0.224  0.510  0.010  1.0
  Ir  Ir9  1  0.490  0.776  0.490  1.0
[/CIF]
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