The crystal structure described by FeSi2 crystallizes in the tetragonal P4/mmm space group. Fe(1) is bonded in a body-centered cubic geometry to eight equivalent Si(1) atoms. Si(1) is bonded in a 5-coordinate geometry to four equivalent Fe(1) and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_FeSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.679
_cell_length_b   2.679
_cell_length_c   5.105
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   36.649
_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
  Fe  Fe0  1  0.000  0.000  0.000  1.0
  Si  Si1  1  0.500  0.500  0.729  1.0
  Si  Si2  1  0.500  0.500  0.271  1.0
[/CIF]
.
The crystal structure described by FeSi2 crystallizes in the tetragonal P4/mmm space group. Fe(1) is bonded in a body-centered cubic geometry to eight equivalent Si(1) atoms. Si(1) is bonded in a 5-coordinate geometry to four equivalent Fe(1) and one Si(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_FeSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.679
_cell_length_b   2.679
_cell_length_c   5.105
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   36.649
_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
  Fe  Fe0  1  0.000  0.000  0.000  1.0
  Si  Si1  1  0.500  0.500  0.729  1.0
  Si  Si2  1  0.500  0.500  0.271  1.0
[/CIF]
.