The compound described by Tb12FeCoBi4 crystallizes in the monoclinic Pm space group. There are twelve inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 4-coordinate geometry to one Co(1), two equivalent Bi(1), and two equivalent Bi(3) atoms. In the second Tb site, Tb(2) is bonded in a 5-coordinate geometry to one Fe(1), two equivalent Bi(2), and two equivalent Bi(4) atoms. In the third Tb site, Tb(3) is bonded in a 4-coordinate geometry to two equivalent Co(1), one Bi(1), and one Bi(3) atom. In the fourth Tb site, Tb(4) is bonded in a 4-coordinate geometry to two equivalent Fe(1), one Bi(2), and one Bi(4) atom. In the fifth Tb site, Tb(5) is bonded in a 4-coordinate geometry to two equivalent Fe(1), one Bi(1), and one Bi(4) atom. In the sixth Tb site, Tb(6) is bonded in a 4-coordinate geometry to two equivalent Co(1), one Bi(2), and one Bi(3) atom. In the seventh Tb site, Tb(7) is bonded in a 4-coordinate geometry to two equivalent Fe(1), one Bi(1), and one Bi(3) atom. In the eighth Tb site, Tb(8) is bonded in a 4-coordinate geometry to two equivalent Co(1), one Bi(2), and one Bi(4) atom. In the ninth Tb site, Tb(9) is bonded in a 5-coordinate geometry to one Fe(1), two equivalent Bi(1), and two equivalent Bi(3) atoms. In the tenth Tb site, Tb(10) is bonded in a 5-coordinate geometry to one Co(1), two equivalent Bi(2), and two equivalent Bi(4) atoms. In the eleventh Tb site, Tb(11) is bonded in a 5-coordinate geometry to one Co(1), two equivalent Bi(2), and two equivalent Bi(3) atoms. In the twelfth Tb site, Tb(12) is bonded in a 5-coordinate geometry to one Fe(1), two equivalent Bi(1), and two equivalent Bi(4) atoms. Fe(1) is bonded in a 9-coordinate geometry to one Tb(12), one Tb(2), one Tb(9), two equivalent Tb(4), two equivalent Tb(5), and two equivalent Tb(7) atoms. Co(1) is bonded in a 9-coordinate geometry to one Tb(1), one Tb(10), one Tb(11), two equivalent Tb(3), two equivalent Tb(6), and two equivalent Tb(8) atoms. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 9-coordinate geometry to one Tb(3), one Tb(5), one Tb(7), two equivalent Tb(1), two equivalent Tb(12), and two equivalent Tb(9) atoms. In the second Bi site, Bi(2) is bonded in a 9-coordinate geometry to one Tb(4), one Tb(6), one Tb(8), two equivalent Tb(10), two equivalent Tb(11), and two equivalent Tb(2) atoms. In the third Bi site, Bi(3) is bonded in a 9-coordinate geometry to one Tb(3), one Tb(6), one Tb(7), two equivalent Tb(1), two equivalent Tb(11), and two equivalent Tb(9) atoms. In the fourth Bi site, Bi(4) is bonded in a 9-coordinate geometry to one Tb(4), one Tb(5), one Tb(8), two equivalent Tb(10), two equivalent Tb(12), and two equivalent Tb(2) atoms. is represented by the CIF card [CIF]
data_Tb12FeCoBi4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.159
_cell_length_b   8.382
_cell_length_c   14.662
_cell_angle_alpha   89.622
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   511.056
_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
  Tb  Tb0  1  0.500  0.191  0.195  1.0
  Tb  Tb1  1  0.500  0.689  0.694  1.0
  Tb  Tb2  1  0.000  0.879  0.110  1.0
  Tb  Tb3  1  0.000  0.376  0.609  1.0
  Tb  Tb4  1  0.000  0.719  0.495  1.0
  Tb  Tb5  1  0.000  0.220  0.995  1.0
  Tb  Tb6  1  0.000  0.371  0.376  1.0
  Tb  Tb7  1  0.000  0.876  0.878  1.0
  Tb  Tb8  1  0.500  0.691  0.297  1.0
  Tb  Tb9  1  0.500  0.191  0.795  1.0
  Tb  Tb10  1  0.500  0.598  0.996  1.0
  Tb  Tb11  1  0.500  0.096  0.497  1.0
  Fe  Fe12  1  0.500  0.481  0.489  1.0
  Co  Co13  1  0.500  0.976  0.989  1.0
  Bi  Bi14  1  0.000  0.991  0.330  1.0
  Bi  Bi15  1  0.000  0.493  0.830  1.0
  Bi  Bi16  1  0.000  0.491  0.162  1.0
  Bi  Bi17  1  0.000  0.988  0.662  1.0
[/CIF]
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The compound described by Tb12FeCoBi4 crystallizes in the monoclinic Pm space group. There are twelve inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 4-coordinate geometry to one Co(1), two equivalent Bi(1), and two equivalent Bi(3) atoms. In the second Tb site, Tb(2) is bonded in a 5-coordinate geometry to one Fe(1), two equivalent Bi(2), and two equivalent Bi(4) atoms. In the third Tb site, Tb(3) is bonded in a 4-coordinate geometry to two equivalent Co(1), one Bi(1), and one Bi(3) atom. In the fourth Tb site, Tb(4) is bonded in a 4-coordinate geometry to two equivalent Fe(1), one Bi(2), and one Bi(4) atom. In the fifth Tb site, Tb(5) is bonded in a 4-coordinate geometry to two equivalent Fe(1), one Bi(1), and one Bi(4) atom. In the sixth Tb site, Tb(6) is bonded in a 4-coordinate geometry to two equivalent Co(1), one Bi(2), and one Bi(3) atom. In the seventh Tb site, Tb(7) is bonded in a 4-coordinate geometry to two equivalent Fe(1), one Bi(1), and one Bi(3) atom. In the eighth Tb site, Tb(8) is bonded in a 4-coordinate geometry to two equivalent Co(1), one Bi(2), and one Bi(4) atom. In the ninth Tb site, Tb(9) is bonded in a 5-coordinate geometry to one Fe(1), two equivalent Bi(1), and two equivalent Bi(3) atoms. In the tenth Tb site, Tb(10) is bonded in a 5-coordinate geometry to one Co(1), two equivalent Bi(2), and two equivalent Bi(4) atoms. In the eleventh Tb site, Tb(11) is bonded in a 5-coordinate geometry to one Co(1), two equivalent Bi(2), and two equivalent Bi(3) atoms. In the twelfth Tb site, Tb(12) is bonded in a 5-coordinate geometry to one Fe(1), two equivalent Bi(1), and two equivalent Bi(4) atoms. Fe(1) is bonded in a 9-coordinate geometry to one Tb(12), one Tb(2), one Tb(9), two equivalent Tb(4), two equivalent Tb(5), and two equivalent Tb(7) atoms. Co(1) is bonded in a 9-coordinate geometry to one Tb(1), one Tb(10), one Tb(11), two equivalent Tb(3), two equivalent Tb(6), and two equivalent Tb(8) atoms. There are four inequivalent Bi sites. In the first Bi site, Bi(1) is bonded in a 9-coordinate geometry to one Tb(3), one Tb(5), one Tb(7), two equivalent Tb(1), two equivalent Tb(12), and two equivalent Tb(9) atoms. In the second Bi site, Bi(2) is bonded in a 9-coordinate geometry to one Tb(4), one Tb(6), one Tb(8), two equivalent Tb(10), two equivalent Tb(11), and two equivalent Tb(2) atoms. In the third Bi site, Bi(3) is bonded in a 9-coordinate geometry to one Tb(3), one Tb(6), one Tb(7), two equivalent Tb(1), two equivalent Tb(11), and two equivalent Tb(9) atoms. In the fourth Bi site, Bi(4) is bonded in a 9-coordinate geometry to one Tb(4), one Tb(5), one Tb(8), two equivalent Tb(10), two equivalent Tb(12), and two equivalent Tb(2) atoms. is represented by the CIF card [CIF]
data_Tb12FeCoBi4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.159
_cell_length_b   8.382
_cell_length_c   14.662
_cell_angle_alpha   89.622
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   511.056
_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
  Tb  Tb0  1  0.500  0.191  0.195  1.0
  Tb  Tb1  1  0.500  0.689  0.694  1.0
  Tb  Tb2  1  0.000  0.879  0.110  1.0
  Tb  Tb3  1  0.000  0.376  0.609  1.0
  Tb  Tb4  1  0.000  0.719  0.495  1.0
  Tb  Tb5  1  0.000  0.220  0.995  1.0
  Tb  Tb6  1  0.000  0.371  0.376  1.0
  Tb  Tb7  1  0.000  0.876  0.878  1.0
  Tb  Tb8  1  0.500  0.691  0.297  1.0
  Tb  Tb9  1  0.500  0.191  0.795  1.0
  Tb  Tb10  1  0.500  0.598  0.996  1.0
  Tb  Tb11  1  0.500  0.096  0.497  1.0
  Fe  Fe12  1  0.500  0.481  0.489  1.0
  Co  Co13  1  0.500  0.976  0.989  1.0
  Bi  Bi14  1  0.000  0.991  0.330  1.0
  Bi  Bi15  1  0.000  0.493  0.830  1.0
  Bi  Bi16  1  0.000  0.491  0.162  1.0
  Bi  Bi17  1  0.000  0.988  0.662  1.0
[/CIF]
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