The material structure described by CePtSi3 crystallizes in the tetragonal I4mm space group. Ce(1) is bonded in a 17-coordinate geometry to five equivalent Pt(1), four equivalent Si(2), and eight equivalent Si(1) atoms. Pt(1) is bonded in a 5-coordinate geometry to five equivalent Ce(1), one Si(2), and four equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a distorted bent 120 degrees geometry to four equivalent Ce(1) and two equivalent Pt(1) atoms. In the second Si site, Si(2) is bonded in a distorted single-bond geometry to four equivalent Ce(1) and one Pt(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeSi3Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.701
_cell_length_b   5.701
_cell_length_c   5.701
_cell_angle_alpha   135.502
_cell_angle_beta   135.502
_cell_angle_gamma   64.751
_symmetry_Int_Tables_number   1
_cell_volume   89.727
_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
  Ce  Ce0  1  0.600  0.600  0.000  1.0
  Si  Si1  1  0.864  0.364  0.500  1.0
  Si  Si2  1  0.364  0.864  0.500  1.0
  Si  Si3  1  0.000  0.000  0.000  1.0
  Pt  Pt4  1  0.251  0.251  0.000  1.0
[/CIF]
.
The material structure described by CePtSi3 crystallizes in the tetragonal I4mm space group. Ce(1) is bonded in a 17-coordinate geometry to five equivalent Pt(1), four equivalent Si(2), and eight equivalent Si(1) atoms. Pt(1) is bonded in a 5-coordinate geometry to five equivalent Ce(1), one Si(2), and four equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a distorted bent 120 degrees geometry to four equivalent Ce(1) and two equivalent Pt(1) atoms. In the second Si site, Si(2) is bonded in a distorted single-bond geometry to four equivalent Ce(1) and one Pt(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_CeSi3Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.701
_cell_length_b   5.701
_cell_length_c   5.701
_cell_angle_alpha   135.502
_cell_angle_beta   135.502
_cell_angle_gamma   64.751
_symmetry_Int_Tables_number   1
_cell_volume   89.727
_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
  Ce  Ce0  1  0.600  0.600  0.000  1.0
  Si  Si1  1  0.864  0.364  0.500  1.0
  Si  Si2  1  0.364  0.864  0.500  1.0
  Si  Si3  1  0.000  0.000  0.000  1.0
  Pt  Pt4  1  0.251  0.251  0.000  1.0
[/CIF]
.