The material structure described by LiTb4Al2(FeO6)2 is Pb (Zr_0.50 Ti_0.48) O_3-derived structured and crystallizes in the triclinic P1 space group. Li(1) is bonded in a 4-coordinate geometry to one O(12), one O(3), one O(8), and one O(9) atom. There are four inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(12), one O(2), one O(5), one O(6), and one O(8) atom. In the second Tb site, Tb(2) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(12), one O(2), one O(5), one O(6), and one O(9) atom. In the third Tb site, Tb(3) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(3), one O(4), one O(6), one O(7), and one O(8) atom. In the fourth Tb site, Tb(4) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(3), one O(4), one O(7), and one O(9) atom. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(12), one O(2), one O(4), one O(5), one O(8), and one O(9) atom to form FeO6 octahedra that share corners with two equivalent Al(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-34°. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(11), one O(3), one O(6), and one O(7) atom to form distorted FeO6 octahedra that share corners with four equivalent Al(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-36°. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(10), one O(11), one O(2), one O(4), one O(6), and one O(7) atom to form AlO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra and corners with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-36°. In the second Al site, Al(2) is bonded in a 6-coordinate geometry to one O(1), one O(12), one O(3), one O(5), one O(8), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Tb(1), one Tb(2), one Fe(2), and one Al(2) atom to form distorted OTb2AlFe trigonal pyramids that share  a cornercorner with one O(11)Tb4AlFe octahedra,  a cornercorner with one O(5)Tb2AlFe tetrahedra, corners with two equivalent O(2)Tb2AlFe tetrahedra, corners with three equivalent O(6)Tb3AlFe trigonal bipyramids,  an edgeedge with one O(11)Tb4AlFe octahedra, and  an edgeedge with one O(5)Tb2AlFe tetrahedra. The corner-sharing octahedral tilt angles are 75°. In the second O site, O(2) is bonded to one Tb(1), one Tb(2), one Fe(1), and one Al(1) atom to form distorted OTb2AlFe tetrahedra that share corners with three equivalent O(11)Tb4AlFe octahedra, corners with three equivalent O(5)Tb2AlFe tetrahedra,  a cornercorner with one O(6)Tb3AlFe trigonal bipyramid, corners with two equivalent O(1)Tb2AlFe trigonal pyramids, and  an edgeedge with one O(6)Tb3AlFe trigonal bipyramid. The corner-sharing octahedral tilt angles range from 47-82°. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Li(1), one Tb(3), one Tb(4), one Fe(2), and one Al(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Tb(3), one Tb(4), one Fe(1), and one Al(1) atom. In the fifth O site, O(5) is bonded to one Tb(1), one Tb(2), one Fe(1), and one Al(2) atom to form distorted OTb2AlFe tetrahedra that share corners with three equivalent O(2)Tb2AlFe tetrahedra, corners with two equivalent O(6)Tb3AlFe trigonal bipyramids,  a cornercorner with one O(1)Tb2AlFe trigonal pyramid,  an edgeedge with one O(11)Tb4AlFe octahedra, and  an edgeedge with one O(1)Tb2AlFe trigonal pyramid. In the sixth O site, O(6) is bonded to one Tb(1), one Tb(2), one Tb(3), one Fe(2), and one Al(1) atom to form distorted OTb3AlFe trigonal bipyramids that share  a cornercorner with one O(2)Tb2AlFe tetrahedra, corners with two equivalent O(5)Tb2AlFe tetrahedra, corners with three equivalent O(1)Tb2AlFe trigonal pyramids,  an edgeedge with one O(11)Tb4AlFe octahedra,  an edgeedge with one O(2)Tb2AlFe tetrahedra, and  a faceface with one O(11)Tb4AlFe octahedra. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Tb(3), one Tb(4), one Fe(2), and one Al(1) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Li(1), one Tb(1), one Tb(3), one Fe(1), and one Al(2) atom. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Li(1), one Tb(2), one Tb(4), one Fe(1), and one Al(2) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Tb(1), one Tb(3), one Tb(4), one Fe(2), and one Al(1) atom. In the eleventh O site, O(11) is bonded to one Tb(1), one Tb(2), one Tb(3), one Tb(4), one Fe(2), and one Al(1) atom to form distorted OTb4AlFe octahedra that share corners with three equivalent O(2)Tb2AlFe tetrahedra,  a cornercorner with one O(1)Tb2AlFe trigonal pyramid,  an edgeedge with one O(5)Tb2AlFe tetrahedra,  an edgeedge with one O(6)Tb3AlFe trigonal bipyramid,  an edgeedge with one O(1)Tb2AlFe trigonal pyramid, and  a faceface with one O(6)Tb3AlFe trigonal bipyramid. In the twelfth O site, O(12) is bonded in a 5-coordinate geometry to one Li(1), one Tb(1), one Tb(2), one Fe(1), and one Al(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_LiTb4Al2(FeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.423
_cell_length_b   5.545
_cell_length_c   7.933
_cell_angle_alpha   94.093
_cell_angle_beta   88.910
_cell_angle_gamma   90.356
_symmetry_Int_Tables_number   1
_cell_volume   237.885
_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
  Li  Li0  1  0.460  0.299  0.919  1.0
  Tb  Tb1  1  0.523  0.545  0.252  1.0
  Tb  Tb2  1  0.989  0.052  0.242  1.0
  Tb  Tb3  1  0.523  0.574  0.677  1.0
  Tb  Tb4  1  0.001  0.990  0.725  1.0
  Al  Al5  1  0.011  0.512  0.489  1.0
  Al  Al6  1  0.513  0.929  0.012  1.0
  Fe  Fe7  1  0.006  0.483  0.998  1.0
  Fe  Fe8  1  0.490  0.034  0.485  1.0
  O  O9  1  0.387  0.939  0.229  1.0
  O  O10  1  0.110  0.457  0.255  1.0
  O  O11  1  0.588  0.988  0.785  1.0
  O  O12  1  0.916  0.552  0.756  1.0
  O  O13  1  0.794  0.761  0.078  1.0
  O  O14  1  0.730  0.320  0.454  1.0
  O  O15  1  0.212  0.261  0.559  1.0
  O  O16  1  0.355  0.623  0.949  1.0
  O  O17  1  0.171  0.138  0.965  1.0
  O  O18  1  0.245  0.748  0.535  1.0
  O  O19  1  0.777  0.784  0.463  1.0
  O  O20  1  0.699  0.250  0.075  1.0
[/CIF]
.
The material structure described by LiTb4Al2(FeO6)2 is Pb (Zr_0.50 Ti_0.48) O_3-derived structured and crystallizes in the triclinic P1 space group. Li(1) is bonded in a 4-coordinate geometry to one O(12), one O(3), one O(8), and one O(9) atom. There are four inequivalent Tb sites. In the first Tb site, Tb(1) is bonded in a 8-coordinate geometry to one O(1), one O(10), one O(11), one O(12), one O(2), one O(5), one O(6), and one O(8) atom. In the second Tb site, Tb(2) is bonded in a 7-coordinate geometry to one O(1), one O(11), one O(12), one O(2), one O(5), one O(6), and one O(9) atom. In the third Tb site, Tb(3) is bonded in a 7-coordinate geometry to one O(10), one O(11), one O(3), one O(4), one O(6), one O(7), and one O(8) atom. In the fourth Tb site, Tb(4) is bonded in a 6-coordinate geometry to one O(10), one O(11), one O(3), one O(4), one O(7), and one O(9) atom. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one O(12), one O(2), one O(4), one O(5), one O(8), and one O(9) atom to form FeO6 octahedra that share corners with two equivalent Al(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 32-34°. In the second Fe site, Fe(2) is bonded to one O(1), one O(10), one O(11), one O(3), one O(6), and one O(7) atom to form distorted FeO6 octahedra that share corners with four equivalent Al(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-36°. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded to one O(10), one O(11), one O(2), one O(4), one O(6), and one O(7) atom to form AlO6 octahedra that share corners with two equivalent Fe(1)O6 octahedra and corners with four equivalent Fe(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 14-36°. In the second Al site, Al(2) is bonded in a 6-coordinate geometry to one O(1), one O(12), one O(3), one O(5), one O(8), and one O(9) atom. There are twelve inequivalent O sites. In the first O site, O(1) is bonded to one Tb(1), one Tb(2), one Fe(2), and one Al(2) atom to form distorted OTb2AlFe trigonal pyramids that share  a cornercorner with one O(11)Tb4AlFe octahedra,  a cornercorner with one O(5)Tb2AlFe tetrahedra, corners with two equivalent O(2)Tb2AlFe tetrahedra, corners with three equivalent O(6)Tb3AlFe trigonal bipyramids,  an edgeedge with one O(11)Tb4AlFe octahedra, and  an edgeedge with one O(5)Tb2AlFe tetrahedra. The corner-sharing octahedral tilt angles are 75°. In the second O site, O(2) is bonded to one Tb(1), one Tb(2), one Fe(1), and one Al(1) atom to form distorted OTb2AlFe tetrahedra that share corners with three equivalent O(11)Tb4AlFe octahedra, corners with three equivalent O(5)Tb2AlFe tetrahedra,  a cornercorner with one O(6)Tb3AlFe trigonal bipyramid, corners with two equivalent O(1)Tb2AlFe trigonal pyramids, and  an edgeedge with one O(6)Tb3AlFe trigonal bipyramid. The corner-sharing octahedral tilt angles range from 47-82°. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Li(1), one Tb(3), one Tb(4), one Fe(2), and one Al(2) atom. In the fourth O site, O(4) is bonded in a distorted rectangular see-saw-like geometry to one Tb(3), one Tb(4), one Fe(1), and one Al(1) atom. In the fifth O site, O(5) is bonded to one Tb(1), one Tb(2), one Fe(1), and one Al(2) atom to form distorted OTb2AlFe tetrahedra that share corners with three equivalent O(2)Tb2AlFe tetrahedra, corners with two equivalent O(6)Tb3AlFe trigonal bipyramids,  a cornercorner with one O(1)Tb2AlFe trigonal pyramid,  an edgeedge with one O(11)Tb4AlFe octahedra, and  an edgeedge with one O(1)Tb2AlFe trigonal pyramid. In the sixth O site, O(6) is bonded to one Tb(1), one Tb(2), one Tb(3), one Fe(2), and one Al(1) atom to form distorted OTb3AlFe trigonal bipyramids that share  a cornercorner with one O(2)Tb2AlFe tetrahedra, corners with two equivalent O(5)Tb2AlFe tetrahedra, corners with three equivalent O(1)Tb2AlFe trigonal pyramids,  an edgeedge with one O(11)Tb4AlFe octahedra,  an edgeedge with one O(2)Tb2AlFe tetrahedra, and  a faceface with one O(11)Tb4AlFe octahedra. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Tb(3), one Tb(4), one Fe(2), and one Al(1) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Li(1), one Tb(1), one Tb(3), one Fe(1), and one Al(2) atom. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Li(1), one Tb(2), one Tb(4), one Fe(1), and one Al(2) atom. In the tenth O site, O(10) is bonded in a 4-coordinate geometry to one Tb(1), one Tb(3), one Tb(4), one Fe(2), and one Al(1) atom. In the eleventh O site, O(11) is bonded to one Tb(1), one Tb(2), one Tb(3), one Tb(4), one Fe(2), and one Al(1) atom to form distorted OTb4AlFe octahedra that share corners with three equivalent O(2)Tb2AlFe tetrahedra,  a cornercorner with one O(1)Tb2AlFe trigonal pyramid,  an edgeedge with one O(5)Tb2AlFe tetrahedra,  an edgeedge with one O(6)Tb3AlFe trigonal bipyramid,  an edgeedge with one O(1)Tb2AlFe trigonal pyramid, and  a faceface with one O(6)Tb3AlFe trigonal bipyramid. In the twelfth O site, O(12) is bonded in a 5-coordinate geometry to one Li(1), one Tb(1), one Tb(2), one Fe(1), and one Al(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_LiTb4Al2(FeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.423
_cell_length_b   5.545
_cell_length_c   7.933
_cell_angle_alpha   94.093
_cell_angle_beta   88.910
_cell_angle_gamma   90.356
_symmetry_Int_Tables_number   1
_cell_volume   237.885
_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
  Li  Li0  1  0.460  0.299  0.919  1.0
  Tb  Tb1  1  0.523  0.545  0.252  1.0
  Tb  Tb2  1  0.989  0.052  0.242  1.0
  Tb  Tb3  1  0.523  0.574  0.677  1.0
  Tb  Tb4  1  0.001  0.990  0.725  1.0
  Al  Al5  1  0.011  0.512  0.489  1.0
  Al  Al6  1  0.513  0.929  0.012  1.0
  Fe  Fe7  1  0.006  0.483  0.998  1.0
  Fe  Fe8  1  0.490  0.034  0.485  1.0
  O  O9  1  0.387  0.939  0.229  1.0
  O  O10  1  0.110  0.457  0.255  1.0
  O  O11  1  0.588  0.988  0.785  1.0
  O  O12  1  0.916  0.552  0.756  1.0
  O  O13  1  0.794  0.761  0.078  1.0
  O  O14  1  0.730  0.320  0.454  1.0
  O  O15  1  0.212  0.261  0.559  1.0
  O  O16  1  0.355  0.623  0.949  1.0
  O  O17  1  0.171  0.138  0.965  1.0
  O  O18  1  0.245  0.748  0.535  1.0
  O  O19  1  0.777  0.784  0.463  1.0
  O  O20  1  0.699  0.250  0.075  1.0
[/CIF]
.