The material structure described by TbFeSi2 crystallizes in the orthorhombic Cmcm space group. Tb(1) is bonded in a 14-coordinate geometry to four equivalent Fe(1), four equivalent Si(2), and six equivalent Si(1) atoms. Fe(1) is bonded in a 4-coordinate geometry to four equivalent Tb(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 six equivalent Tb(1), one Si(2), and two equivalent Si(1) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to four equivalent Tb(1), four equivalent Fe(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_TbFeSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.538
_cell_length_b   8.538
_cell_length_c   3.979
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   152.905
_symmetry_Int_Tables_number   1
_cell_volume   132.111
_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
  Tb  Tb0  1  0.608  0.392  0.250  1.0
  Tb  Tb1  1  0.392  0.608  0.750  1.0
  Fe  Fe2  1  0.249  0.751  0.250  1.0
  Fe  Fe3  1  0.751  0.249  0.750  1.0
  Si  Si4  1  0.963  0.037  0.250  1.0
  Si  Si5  1  0.037  0.963  0.750  1.0
  Si  Si6  1  0.814  0.186  0.250  1.0
  Si  Si7  1  0.186  0.814  0.750  1.0
[/CIF]
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The material structure described by TbFeSi2 crystallizes in the orthorhombic Cmcm space group. Tb(1) is bonded in a 14-coordinate geometry to four equivalent Fe(1), four equivalent Si(2), and six equivalent Si(1) atoms. Fe(1) is bonded in a 4-coordinate geometry to four equivalent Tb(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 six equivalent Tb(1), one Si(2), and two equivalent Si(1) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to four equivalent Tb(1), four equivalent Fe(1), and one Si(1) atom. is represented by the CIF file [CIF]
data_TbFeSi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.538
_cell_length_b   8.538
_cell_length_c   3.979
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   152.905
_symmetry_Int_Tables_number   1
_cell_volume   132.111
_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
  Tb  Tb0  1  0.608  0.392  0.250  1.0
  Tb  Tb1  1  0.392  0.608  0.750  1.0
  Fe  Fe2  1  0.249  0.751  0.250  1.0
  Fe  Fe3  1  0.751  0.249  0.750  1.0
  Si  Si4  1  0.963  0.037  0.250  1.0
  Si  Si5  1  0.037  0.963  0.750  1.0
  Si  Si6  1  0.814  0.186  0.250  1.0
  Si  Si7  1  0.186  0.814  0.750  1.0
[/CIF]
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