The structure described by Tb4Co3 crystallizes in the trigonal P-3 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 7-coordinate geometry to two equivalent Co(1) and five equivalent Co(2) atoms. In the second Tb site, Tb(2) is bonded in a 4-coordinate geometry to one Co(3) and three equivalent Co(2) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 9-coordinate geometry to six equivalent Tb(1) and three equivalent Co(2) atoms. In the second Co site, Co(2) is bonded in a 9-coordinate geometry to three equivalent Tb(2), five equivalent Tb(1), and one Co(1) atom. In the third Co site, Co(3) is bonded in a 6-coordinate geometry to six equivalent Tb(2) atoms. is represented by the CIF card [CIF]
data_Tb4Co3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.316
_cell_length_b   11.315
_cell_length_c   4.039
_cell_angle_alpha   90.001
_cell_angle_beta   90.001
_cell_angle_gamma   119.981
_symmetry_Int_Tables_number   1
_cell_volume   447.937
_cell_formula_units_Z   3
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  0.620  0.486  0.750  1.0
  Tb  Tb1  1  0.514  0.134  0.750  1.0
  Tb  Tb2  1  0.866  0.380  0.750  1.0
  Tb  Tb3  1  0.380  0.514  0.250  1.0
  Tb  Tb4  1  0.486  0.866  0.250  1.0
  Tb  Tb5  1  0.134  0.620  0.250  1.0
  Tb  Tb6  1  0.783  0.034  0.751  1.0
  Tb  Tb7  1  0.966  0.749  0.751  1.0
  Tb  Tb8  1  0.251  0.217  0.751  1.0
  Tb  Tb9  1  0.217  0.966  0.249  1.0
  Tb  Tb10  1  0.034  0.251  0.249  1.0
  Tb  Tb11  1  0.749  0.783  0.249  1.0
  Co  Co12  1  0.333  0.667  0.747  1.0
  Co  Co13  1  0.667  0.333  0.253  1.0
  Co  Co14  1  0.284  0.840  0.749  1.0
  Co  Co15  1  0.160  0.445  0.749  1.0
  Co  Co16  1  0.555  0.716  0.749  1.0
  Co  Co17  1  0.716  0.160  0.251  1.0
  Co  Co18  1  0.840  0.555  0.251  1.0
  Co  Co19  1  0.445  0.284  0.251  1.0
  Co  Co20  1  0.000  0.000  0.500  1.0
[/CIF]
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The structure described by Tb4Co3 crystallizes in the trigonal P-3 space group. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 7-coordinate geometry to two equivalent Co(1) and five equivalent Co(2) atoms. In the second Tb site, Tb(2) is bonded in a 4-coordinate geometry to one Co(3) and three equivalent Co(2) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 9-coordinate geometry to six equivalent Tb(1) and three equivalent Co(2) atoms. In the second Co site, Co(2) is bonded in a 9-coordinate geometry to three equivalent Tb(2), five equivalent Tb(1), and one Co(1) atom. In the third Co site, Co(3) is bonded in a 6-coordinate geometry to six equivalent Tb(2) atoms. is represented by the CIF card [CIF]
data_Tb4Co3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.316
_cell_length_b   11.315
_cell_length_c   4.039
_cell_angle_alpha   90.001
_cell_angle_beta   90.001
_cell_angle_gamma   119.981
_symmetry_Int_Tables_number   1
_cell_volume   447.937
_cell_formula_units_Z   3
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  0.620  0.486  0.750  1.0
  Tb  Tb1  1  0.514  0.134  0.750  1.0
  Tb  Tb2  1  0.866  0.380  0.750  1.0
  Tb  Tb3  1  0.380  0.514  0.250  1.0
  Tb  Tb4  1  0.486  0.866  0.250  1.0
  Tb  Tb5  1  0.134  0.620  0.250  1.0
  Tb  Tb6  1  0.783  0.034  0.751  1.0
  Tb  Tb7  1  0.966  0.749  0.751  1.0
  Tb  Tb8  1  0.251  0.217  0.751  1.0
  Tb  Tb9  1  0.217  0.966  0.249  1.0
  Tb  Tb10  1  0.034  0.251  0.249  1.0
  Tb  Tb11  1  0.749  0.783  0.249  1.0
  Co  Co12  1  0.333  0.667  0.747  1.0
  Co  Co13  1  0.667  0.333  0.253  1.0
  Co  Co14  1  0.284  0.840  0.749  1.0
  Co  Co15  1  0.160  0.445  0.749  1.0
  Co  Co16  1  0.555  0.716  0.749  1.0
  Co  Co17  1  0.716  0.160  0.251  1.0
  Co  Co18  1  0.840  0.555  0.251  1.0
  Co  Co19  1  0.445  0.284  0.251  1.0
  Co  Co20  1  0.000  0.000  0.500  1.0
[/CIF]
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