The compound described by Tb3Co2Si3 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 9-coordinate geometry to four equivalent Co(1), two equivalent Si(2), and three equivalent Si(1) atoms. In the second Tb site, Tb(2) is bonded in a 10-coordinate geometry to four equivalent Co(1), two equivalent Si(1), and five equivalent Si(2) atoms. Co(1) is bonded in a 10-coordinate geometry to two equivalent Tb(1), four equivalent Tb(2), one Si(1), and three 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 three equivalent Tb(1), four equivalent Tb(2), and two equivalent Co(1) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to one Tb(1), five equivalent Tb(2), three equivalent Co(1), and one Si(2) atom. is represented by the CIF card [CIF]
data_Tb3Co2Si3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.648
_cell_length_b   5.648
_cell_length_c   13.694
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   137.362
_symmetry_Int_Tables_number   1
_cell_volume   295.886
_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  0.637  0.363  0.250  1.0
  Tb  Tb1  1  0.363  0.637  0.750  1.0
  Tb  Tb2  1  0.919  0.081  0.112  1.0
  Tb  Tb3  1  0.081  0.919  0.888  1.0
  Tb  Tb4  1  0.081  0.919  0.612  1.0
  Tb  Tb5  1  0.919  0.081  0.388  1.0
  Co  Co6  1  0.786  0.214  0.580  1.0
  Co  Co7  1  0.214  0.786  0.420  1.0
  Co  Co8  1  0.214  0.786  0.080  1.0
  Co  Co9  1  0.786  0.214  0.920  1.0
  Si  Si10  1  0.330  0.670  0.250  1.0
  Si  Si11  1  0.670  0.330  0.750  1.0
  Si  Si12  1  0.623  0.377  0.040  1.0
  Si  Si13  1  0.377  0.623  0.960  1.0
  Si  Si14  1  0.377  0.623  0.540  1.0
  Si  Si15  1  0.623  0.377  0.460  1.0
[/CIF]
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The compound described by Tb3Co2Si3 crystallizes in the orthorhombic Cmcm space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 9-coordinate geometry to four equivalent Co(1), two equivalent Si(2), and three equivalent Si(1) atoms. In the second Tb site, Tb(2) is bonded in a 10-coordinate geometry to four equivalent Co(1), two equivalent Si(1), and five equivalent Si(2) atoms. Co(1) is bonded in a 10-coordinate geometry to two equivalent Tb(1), four equivalent Tb(2), one Si(1), and three 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 three equivalent Tb(1), four equivalent Tb(2), and two equivalent Co(1) atoms. In the second Si site, Si(2) is bonded in a 10-coordinate geometry to one Tb(1), five equivalent Tb(2), three equivalent Co(1), and one Si(2) atom. is represented by the CIF card [CIF]
data_Tb3Co2Si3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.648
_cell_length_b   5.648
_cell_length_c   13.694
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   137.362
_symmetry_Int_Tables_number   1
_cell_volume   295.886
_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  0.637  0.363  0.250  1.0
  Tb  Tb1  1  0.363  0.637  0.750  1.0
  Tb  Tb2  1  0.919  0.081  0.112  1.0
  Tb  Tb3  1  0.081  0.919  0.888  1.0
  Tb  Tb4  1  0.081  0.919  0.612  1.0
  Tb  Tb5  1  0.919  0.081  0.388  1.0
  Co  Co6  1  0.786  0.214  0.580  1.0
  Co  Co7  1  0.214  0.786  0.420  1.0
  Co  Co8  1  0.214  0.786  0.080  1.0
  Co  Co9  1  0.786  0.214  0.920  1.0
  Si  Si10  1  0.330  0.670  0.250  1.0
  Si  Si11  1  0.670  0.330  0.750  1.0
  Si  Si12  1  0.623  0.377  0.040  1.0
  Si  Si13  1  0.377  0.623  0.960  1.0
  Si  Si14  1  0.377  0.623  0.540  1.0
  Si  Si15  1  0.623  0.377  0.460  1.0
[/CIF]
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