The crystal structure described by TbNiSi2 crystallizes in the orthorhombic Cmcm space group. Tb(1) is bonded in a 14-coordinate geometry to four equivalent Ni(1), four equivalent Si(1), and six equivalent Si(2) atoms. Ni(1) is bonded in a 9-coordinate geometry to four equivalent Tb(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 8-coordinate geometry to four equivalent Tb(1) and four equivalent Ni(1) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to six equivalent Tb(1), one Ni(1), and two equivalent Si(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_TbSi2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.959
_cell_length_b   4.009
_cell_length_c   8.394
_cell_angle_alpha   103.816
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   129.375
_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  0.250  0.894  0.788  1.0
  Tb  Tb1  1  0.750  0.106  0.212  1.0
  Si  Si2  1  0.250  0.250  0.500  1.0
  Si  Si3  1  0.750  0.750  0.500  1.0
  Si  Si4  1  0.250  0.540  0.081  1.0
  Si  Si5  1  0.750  0.460  0.919  1.0
  Ni  Ni6  1  0.250  0.679  0.357  1.0
  Ni  Ni7  1  0.750  0.321  0.643  1.0
[/CIF]
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The crystal structure described by TbNiSi2 crystallizes in the orthorhombic Cmcm space group. Tb(1) is bonded in a 14-coordinate geometry to four equivalent Ni(1), four equivalent Si(1), and six equivalent Si(2) atoms. Ni(1) is bonded in a 9-coordinate geometry to four equivalent Tb(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 8-coordinate geometry to four equivalent Tb(1) and four equivalent Ni(1) atoms. In the second Si site, Si(2) is bonded in a 9-coordinate geometry to six equivalent Tb(1), one Ni(1), and two equivalent Si(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_TbSi2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.959
_cell_length_b   4.009
_cell_length_c   8.394
_cell_angle_alpha   103.816
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   129.375
_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  0.250  0.894  0.788  1.0
  Tb  Tb1  1  0.750  0.106  0.212  1.0
  Si  Si2  1  0.250  0.250  0.500  1.0
  Si  Si3  1  0.750  0.750  0.500  1.0
  Si  Si4  1  0.250  0.540  0.081  1.0
  Si  Si5  1  0.750  0.460  0.919  1.0
  Ni  Ni6  1  0.250  0.679  0.357  1.0
  Ni  Ni7  1  0.750  0.321  0.643  1.0
[/CIF]
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