The material structure described by LaCoSi3 crystallizes in the tetragonal I4mm space group. La(1) is bonded in a 17-coordinate geometry to five equivalent Co(1), four equivalent Si(1), and eight equivalent Si(2) atoms. Co(1) is bonded in a 5-coordinate geometry to five equivalent La(1), one Si(1), and four equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent La(1), one Co(1), and four equivalent Si(2) atoms. In the second Si site, Si(2) is bonded in a 8-coordinate geometry to four equivalent La(1), two equivalent Co(1), and two equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_LaCoSi3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.649
_cell_length_b   5.649
_cell_length_c   5.649
_cell_angle_alpha   136.738
_cell_angle_beta   136.738
_cell_angle_gamma   62.841
_symmetry_Int_Tables_number   1
_cell_volume   83.599
_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
  La  La0  1  0.005  0.005  0.000  1.0
  Co  Co1  1  0.662  0.662  0.000  1.0
  Si  Si2  1  0.425  0.425  0.000  1.0
  Si  Si3  1  0.261  0.761  0.500  1.0
  Si  Si4  1  0.761  0.261  0.500  1.0
[/CIF]
.
The material structure described by LaCoSi3 crystallizes in the tetragonal I4mm space group. La(1) is bonded in a 17-coordinate geometry to five equivalent Co(1), four equivalent Si(1), and eight equivalent Si(2) atoms. Co(1) is bonded in a 5-coordinate geometry to five equivalent La(1), one Si(1), and four equivalent Si(2) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 9-coordinate geometry to four equivalent La(1), one Co(1), and four equivalent Si(2) atoms. In the second Si site, Si(2) is bonded in a 8-coordinate geometry to four equivalent La(1), two equivalent Co(1), and two equivalent Si(1) atoms. is represented by the CIF file [CIF]
data_LaCoSi3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.649
_cell_length_b   5.649
_cell_length_c   5.649
_cell_angle_alpha   136.738
_cell_angle_beta   136.738
_cell_angle_gamma   62.841
_symmetry_Int_Tables_number   1
_cell_volume   83.599
_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
  La  La0  1  0.005  0.005  0.000  1.0
  Co  Co1  1  0.662  0.662  0.000  1.0
  Si  Si2  1  0.425  0.425  0.000  1.0
  Si  Si3  1  0.261  0.761  0.500  1.0
  Si  Si4  1  0.761  0.261  0.500  1.0
[/CIF]
.