The compound described by LaRu2Si2 crystallizes in the tetragonal I4/mmm space group. La(1) is bonded in a 16-coordinate geometry to eight equivalent Ru(1) and eight equivalent Si(1) atoms. Ru(1) is bonded in a 4-coordinate geometry to four equivalent La(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 4-coordinate geometry to four equivalent La(1) and four equivalent Ru(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_La(SiRu)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.232
_cell_length_b   4.232
_cell_length_c   5.819
_cell_angle_alpha   111.320
_cell_angle_beta   111.320
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   89.373
_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  0.000  0.000  0.000  1.0
  Si  Si1  1  0.641  0.641  0.283  1.0
  Si  Si2  1  0.359  0.359  0.717  1.0
  Ru  Ru3  1  0.750  0.250  0.500  1.0
  Ru  Ru4  1  0.250  0.750  0.500  1.0
[/CIF]
.
The compound described by LaRu2Si2 crystallizes in the tetragonal I4/mmm space group. La(1) is bonded in a 16-coordinate geometry to eight equivalent Ru(1) and eight equivalent Si(1) atoms. Ru(1) is bonded in a 4-coordinate geometry to four equivalent La(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 4-coordinate geometry to four equivalent La(1) and four equivalent Ru(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_La(SiRu)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.232
_cell_length_b   4.232
_cell_length_c   5.819
_cell_angle_alpha   111.320
_cell_angle_beta   111.320
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   89.373
_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  0.000  0.000  0.000  1.0
  Si  Si1  1  0.641  0.641  0.283  1.0
  Si  Si2  1  0.359  0.359  0.717  1.0
  Ru  Ru3  1  0.750  0.250  0.500  1.0
  Ru  Ru4  1  0.250  0.750  0.500  1.0
[/CIF]
.