The material described by TbBi5O9 crystallizes in the triclinic P1 space group. Tb(1) is bonded to one O(5), one O(8), one O(9), two equivalent O(4), and two equivalent O(6) atoms to form distorted TbO7 hexagonal pyramids that share  a cornercorner with one Bi(1)O5 trigonal bipyramid, corners with two equivalent Bi(5)O5 trigonal bipyramids, edges with two equivalent Tb(1)O7 hexagonal pyramids, and  an edgeedge with one Bi(4)O4 trigonal pyramid. There are five inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(1), one O(2), one O(5), and two equivalent O(7) atoms to form distorted BiO5 trigonal bipyramids that share  a cornercorner with one Tb(1)O7 hexagonal pyramid,  a cornercorner with one Bi(5)O5 trigonal bipyramid, corners with two equivalent Bi(1)O5 trigonal bipyramids, and edges with two equivalent Bi(5)O5 trigonal bipyramids. In the second Bi site, Bi(2) is bonded in a 7-coordinate geometry to one O(3), one O(4), one O(7), two equivalent O(5), and two equivalent O(9) atoms. In the third Bi site, Bi(3) is bonded in a 5-coordinate geometry to one O(1), one O(3), one O(4), and two equivalent O(8) atoms. In the fourth Bi site, Bi(4) is bonded to one O(8), one O(9), and two equivalent O(3) atoms to form BiO4 trigonal pyramids that share corners with two equivalent Bi(4)O4 trigonal pyramids and  an edgeedge with one Tb(1)O7 hexagonal pyramid. In the fifth Bi site, Bi(5) is bonded to one O(1), one O(6), one O(7), and two equivalent O(2) atoms to form distorted BiO5 trigonal bipyramids that share corners with two equivalent Tb(1)O7 hexagonal pyramids,  a cornercorner with one Bi(1)O5 trigonal bipyramid, corners with two equivalent Bi(5)O5 trigonal bipyramids, and edges with two equivalent Bi(1)O5 trigonal bipyramids. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Bi(1), one Bi(3), and one Bi(5) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Bi(1) and two equivalent Bi(5) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Bi(2), one Bi(3), and two equivalent Bi(4) atoms. In the fourth O site, O(4) is bonded to two equivalent Tb(1), one Bi(2), and one Bi(3) atom to form OTb2Bi2 tetrahedra that share  a cornercorner with one O(7)Bi4 tetrahedra, corners with two equivalent O(4)Tb2Bi2 tetrahedra, corners with four equivalent O(9)TbBi3 tetrahedra, edges with two equivalent O(5)TbBi3 tetrahedra, and edges with two equivalent O(8)TbBi3 tetrahedra. In the fifth O site, O(5) is bonded to one Tb(1), one Bi(1), and two equivalent Bi(2) atoms to form OTbBi3 tetrahedra that share  a cornercorner with one O(8)TbBi3 tetrahedra, corners with two equivalent O(5)TbBi3 tetrahedra, corners with three equivalent O(9)TbBi3 tetrahedra,  an edgeedge with one O(9)TbBi3 tetrahedra, edges with two equivalent O(7)Bi4 tetrahedra, and edges with two equivalent O(4)Tb2Bi2 tetrahedra. In the sixth O site, O(6) is bonded in a trigonal planar geometry to two equivalent Tb(1) and one Bi(5) atom. In the seventh O site, O(7) is bonded to one Bi(2), one Bi(5), and two equivalent Bi(1) atoms to form OBi4 tetrahedra that share  a cornercorner with one O(4)Tb2Bi2 tetrahedra, corners with two equivalent O(7)Bi4 tetrahedra, corners with two equivalent O(9)TbBi3 tetrahedra, and edges with two equivalent O(5)TbBi3 tetrahedra. In the eighth O site, O(8) is bonded to one Tb(1), one Bi(4), and two equivalent Bi(3) atoms to form OTbBi3 tetrahedra that share  a cornercorner with one O(5)TbBi3 tetrahedra, corners with two equivalent O(8)TbBi3 tetrahedra,  an edgeedge with one O(9)TbBi3 tetrahedra, and edges with two equivalent O(4)Tb2Bi2 tetrahedra. In the ninth O site, O(9) is bonded to one Tb(1), one Bi(4), and two equivalent Bi(2) atoms to form OTbBi3 tetrahedra that share corners with two equivalent O(7)Bi4 tetrahedra, corners with two equivalent O(9)TbBi3 tetrahedra, corners with three equivalent O(5)TbBi3 tetrahedra, corners with four equivalent O(4)Tb2Bi2 tetrahedra,  an edgeedge with one O(5)TbBi3 tetrahedra, and  an edgeedge with one O(8)TbBi3 tetrahedra. is represented by the CIF card [CIF]
data_TbBi5O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.888
_cell_length_b   6.885
_cell_length_c   9.574
_cell_angle_alpha   84.093
_cell_angle_beta   78.440
_cell_angle_gamma   88.623
_symmetry_Int_Tables_number   1
_cell_volume   249.777
_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  0.021  0.988  0.022  1.0
  Bi  Bi1  1  0.152  0.408  0.660  1.0
  Bi  Bi2  1  0.529  0.457  0.997  1.0
  Bi  Bi3  1  0.332  0.113  0.351  1.0
  Bi  Bi4  1  0.859  0.610  0.322  1.0
  Bi  Bi5  1  0.660  0.871  0.661  1.0
  O  O6  1  0.850  0.211  0.523  1.0
  O  O7  1  0.188  0.745  0.567  1.0
  O  O8  1  0.366  0.445  0.290  1.0
  O  O9  1  0.475  0.147  0.108  1.0
  O  O10  1  0.059  0.304  0.896  1.0
  O  O11  1  0.591  0.909  0.887  1.0
  O  O12  1  0.639  0.544  0.740  1.0
  O  O13  1  0.929  0.936  0.276  1.0
  O  O14  1  0.955  0.645  0.091  1.0
[/CIF]
.
The material described by TbBi5O9 crystallizes in the triclinic P1 space group. Tb(1) is bonded to one O(5), one O(8), one O(9), two equivalent O(4), and two equivalent O(6) atoms to form distorted TbO7 hexagonal pyramids that share  a cornercorner with one Bi(1)O5 trigonal bipyramid, corners with two equivalent Bi(5)O5 trigonal bipyramids, edges with two equivalent Tb(1)O7 hexagonal pyramids, and  an edgeedge with one Bi(4)O4 trigonal pyramid. There are five inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(1), one O(2), one O(5), and two equivalent O(7) atoms to form distorted BiO5 trigonal bipyramids that share  a cornercorner with one Tb(1)O7 hexagonal pyramid,  a cornercorner with one Bi(5)O5 trigonal bipyramid, corners with two equivalent Bi(1)O5 trigonal bipyramids, and edges with two equivalent Bi(5)O5 trigonal bipyramids. In the second Bi site, Bi(2) is bonded in a 7-coordinate geometry to one O(3), one O(4), one O(7), two equivalent O(5), and two equivalent O(9) atoms. In the third Bi site, Bi(3) is bonded in a 5-coordinate geometry to one O(1), one O(3), one O(4), and two equivalent O(8) atoms. In the fourth Bi site, Bi(4) is bonded to one O(8), one O(9), and two equivalent O(3) atoms to form BiO4 trigonal pyramids that share corners with two equivalent Bi(4)O4 trigonal pyramids and  an edgeedge with one Tb(1)O7 hexagonal pyramid. In the fifth Bi site, Bi(5) is bonded to one O(1), one O(6), one O(7), and two equivalent O(2) atoms to form distorted BiO5 trigonal bipyramids that share corners with two equivalent Tb(1)O7 hexagonal pyramids,  a cornercorner with one Bi(1)O5 trigonal bipyramid, corners with two equivalent Bi(5)O5 trigonal bipyramids, and edges with two equivalent Bi(1)O5 trigonal bipyramids. There are nine inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal non-coplanar geometry to one Bi(1), one Bi(3), and one Bi(5) atom. In the second O site, O(2) is bonded in a trigonal non-coplanar geometry to one Bi(1) and two equivalent Bi(5) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Bi(2), one Bi(3), and two equivalent Bi(4) atoms. In the fourth O site, O(4) is bonded to two equivalent Tb(1), one Bi(2), and one Bi(3) atom to form OTb2Bi2 tetrahedra that share  a cornercorner with one O(7)Bi4 tetrahedra, corners with two equivalent O(4)Tb2Bi2 tetrahedra, corners with four equivalent O(9)TbBi3 tetrahedra, edges with two equivalent O(5)TbBi3 tetrahedra, and edges with two equivalent O(8)TbBi3 tetrahedra. In the fifth O site, O(5) is bonded to one Tb(1), one Bi(1), and two equivalent Bi(2) atoms to form OTbBi3 tetrahedra that share  a cornercorner with one O(8)TbBi3 tetrahedra, corners with two equivalent O(5)TbBi3 tetrahedra, corners with three equivalent O(9)TbBi3 tetrahedra,  an edgeedge with one O(9)TbBi3 tetrahedra, edges with two equivalent O(7)Bi4 tetrahedra, and edges with two equivalent O(4)Tb2Bi2 tetrahedra. In the sixth O site, O(6) is bonded in a trigonal planar geometry to two equivalent Tb(1) and one Bi(5) atom. In the seventh O site, O(7) is bonded to one Bi(2), one Bi(5), and two equivalent Bi(1) atoms to form OBi4 tetrahedra that share  a cornercorner with one O(4)Tb2Bi2 tetrahedra, corners with two equivalent O(7)Bi4 tetrahedra, corners with two equivalent O(9)TbBi3 tetrahedra, and edges with two equivalent O(5)TbBi3 tetrahedra. In the eighth O site, O(8) is bonded to one Tb(1), one Bi(4), and two equivalent Bi(3) atoms to form OTbBi3 tetrahedra that share  a cornercorner with one O(5)TbBi3 tetrahedra, corners with two equivalent O(8)TbBi3 tetrahedra,  an edgeedge with one O(9)TbBi3 tetrahedra, and edges with two equivalent O(4)Tb2Bi2 tetrahedra. In the ninth O site, O(9) is bonded to one Tb(1), one Bi(4), and two equivalent Bi(2) atoms to form OTbBi3 tetrahedra that share corners with two equivalent O(7)Bi4 tetrahedra, corners with two equivalent O(9)TbBi3 tetrahedra, corners with three equivalent O(5)TbBi3 tetrahedra, corners with four equivalent O(4)Tb2Bi2 tetrahedra,  an edgeedge with one O(5)TbBi3 tetrahedra, and  an edgeedge with one O(8)TbBi3 tetrahedra. is represented by the CIF card [CIF]
data_TbBi5O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.888
_cell_length_b   6.885
_cell_length_c   9.574
_cell_angle_alpha   84.093
_cell_angle_beta   78.440
_cell_angle_gamma   88.623
_symmetry_Int_Tables_number   1
_cell_volume   249.777
_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  0.021  0.988  0.022  1.0
  Bi  Bi1  1  0.152  0.408  0.660  1.0
  Bi  Bi2  1  0.529  0.457  0.997  1.0
  Bi  Bi3  1  0.332  0.113  0.351  1.0
  Bi  Bi4  1  0.859  0.610  0.322  1.0
  Bi  Bi5  1  0.660  0.871  0.661  1.0
  O  O6  1  0.850  0.211  0.523  1.0
  O  O7  1  0.188  0.745  0.567  1.0
  O  O8  1  0.366  0.445  0.290  1.0
  O  O9  1  0.475  0.147  0.108  1.0
  O  O10  1  0.059  0.304  0.896  1.0
  O  O11  1  0.591  0.909  0.887  1.0
  O  O12  1  0.639  0.544  0.740  1.0
  O  O13  1  0.929  0.936  0.276  1.0
  O  O14  1  0.955  0.645  0.091  1.0
[/CIF]
.