The compound described by LiTb4Al2(FeO6)2 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P1 space group. Li(1) is bonded to one Fe(1), one O(12), one O(3), one O(4), and one O(9) atom to form distorted LiFeO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Al(1)O6 octahedra,  a cornercorner with one Al(2)O6 octahedra,  a cornercorner with one O(2)Tb2AlFe tetrahedra, and  an edgeedge with one Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 18-68°. 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 8-coordinate geometry to one O(1), one O(11), one O(12), one O(2), one O(5), one O(6), one O(7), and one O(9) atom. In the third Tb site, Tb(3) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(3), one O(4), one O(6), one O(7), one O(8), and one O(9) atom. In the fourth Tb site, Tb(4) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(3), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 7-coordinate geometry to one Li(1), one O(12), one O(2), one O(4), one O(5), one O(8), and one O(9) atom. 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 FeO6 octahedra that share corners with two equivalent Al(2)O6 octahedra, corners with four equivalent Al(1)O6 octahedra, and  a cornercorner with one Li(1)FeO4 tetrahedra. The corner-sharing octahedral tilt angles range from 32-40°. 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 four equivalent Fe(2)O6 octahedra and  a cornercorner with one Li(1)FeO4 tetrahedra. The corner-sharing octahedral tilt angles range from 32-37°. In the second Al site, Al(2) is bonded to one O(1), one O(12), one O(3), one O(5), one O(8), and one O(9) atom to form AlO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra,  a cornercorner with one Li(1)FeO4 tetrahedra, and  an edgeedge with one Li(1)FeO4 tetrahedra. The corner-sharing octahedral tilt angles range from 36-40°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Tb(1), one Tb(2), one Fe(2), and one Al(2) atom. 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  a cornercorner with one Li(1)FeO4 tetrahedra and corners with three equivalent O(11)Tb3AlFe trigonal bipyramids. 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 5-coordinate geometry to one Li(1), one Tb(3), one Tb(4), one Fe(1), and one Al(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Tb(1), one Tb(2), one Tb(4), one Fe(1), and one Al(2) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Tb(1), one Tb(2), one Tb(3), one Fe(2), and one Al(1) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Tb(2), 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 Tb(1), one Tb(3), one Tb(4), one Fe(1), and one Al(2) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Li(1), one Tb(2), one Tb(3), one Tb(4), one Fe(1), and one Al(2) atom. In the tenth O site, O(10) is bonded in a 5-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(4), one Fe(2), and one Al(1) atom to form distorted corner-sharing OTb3AlFe trigonal bipyramids. In the twelfth O site, O(12) is bonded in a 6-coordinate geometry to one Li(1), one Tb(1), one Tb(2), one Tb(3), one Fe(1), and one Al(2) atom. is represented by the CIF card [CIF]
data_LiTb4Al2(FeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.276
_cell_length_b   5.793
_cell_length_c   7.592
_cell_angle_alpha   89.119
_cell_angle_beta   89.533
_cell_angle_gamma   91.717
_symmetry_Int_Tables_number   1
_cell_volume   231.900
_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  0.891  0.247  0.850  1.0
  Tb  Tb1  1  0.541  0.582  0.245  1.0
  Tb  Tb2  1  0.999  0.082  0.240  1.0
  Tb  Tb3  1  0.462  0.432  0.752  1.0
  Tb  Tb4  1  0.045  0.891  0.732  1.0
  Al  Al5  1  0.010  0.492  0.493  1.0
  Al  Al6  1  0.506  0.005  0.995  1.0
  Fe  Fe7  1  0.011  0.546  0.025  1.0
  Fe  Fe8  1  0.522  0.012  0.493  1.0
  O  O9  1  0.405  0.968  0.241  1.0
  O  O10  1  0.132  0.466  0.265  1.0
  O  O11  1  0.638  0.051  0.750  1.0
  O  O12  1  0.899  0.523  0.732  1.0
  O  O13  1  0.802  0.839  0.048  1.0
  O  O14  1  0.719  0.310  0.433  1.0
  O  O15  1  0.201  0.200  0.556  1.0
  O  O16  1  0.335  0.718  0.937  1.0
  O  O17  1  0.210  0.174  0.937  1.0
  O  O18  1  0.310  0.689  0.550  1.0
  O  O19  1  0.826  0.800  0.439  1.0
  O  O20  1  0.689  0.308  0.045  1.0
[/CIF]
.
The compound described by LiTb4Al2(FeO6)2 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P1 space group. Li(1) is bonded to one Fe(1), one O(12), one O(3), one O(4), and one O(9) atom to form distorted LiFeO4 tetrahedra that share  a cornercorner with one Fe(2)O6 octahedra,  a cornercorner with one Al(1)O6 octahedra,  a cornercorner with one Al(2)O6 octahedra,  a cornercorner with one O(2)Tb2AlFe tetrahedra, and  an edgeedge with one Al(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 18-68°. 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 8-coordinate geometry to one O(1), one O(11), one O(12), one O(2), one O(5), one O(6), one O(7), and one O(9) atom. In the third Tb site, Tb(3) is bonded in a 6-coordinate geometry to one O(10), one O(12), one O(3), one O(4), one O(6), one O(7), one O(8), and one O(9) atom. In the fourth Tb site, Tb(4) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(3), one O(4), one O(5), one O(7), one O(8), and one O(9) atom. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 7-coordinate geometry to one Li(1), one O(12), one O(2), one O(4), one O(5), one O(8), and one O(9) atom. 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 FeO6 octahedra that share corners with two equivalent Al(2)O6 octahedra, corners with four equivalent Al(1)O6 octahedra, and  a cornercorner with one Li(1)FeO4 tetrahedra. The corner-sharing octahedral tilt angles range from 32-40°. 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 four equivalent Fe(2)O6 octahedra and  a cornercorner with one Li(1)FeO4 tetrahedra. The corner-sharing octahedral tilt angles range from 32-37°. In the second Al site, Al(2) is bonded to one O(1), one O(12), one O(3), one O(5), one O(8), and one O(9) atom to form AlO6 octahedra that share corners with two equivalent Fe(2)O6 octahedra,  a cornercorner with one Li(1)FeO4 tetrahedra, and  an edgeedge with one Li(1)FeO4 tetrahedra. The corner-sharing octahedral tilt angles range from 36-40°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Tb(1), one Tb(2), one Fe(2), and one Al(2) atom. 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  a cornercorner with one Li(1)FeO4 tetrahedra and corners with three equivalent O(11)Tb3AlFe trigonal bipyramids. 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 5-coordinate geometry to one Li(1), one Tb(3), one Tb(4), one Fe(1), and one Al(1) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Tb(1), one Tb(2), one Tb(4), one Fe(1), and one Al(2) atom. In the sixth O site, O(6) is bonded in a 5-coordinate geometry to one Tb(1), one Tb(2), one Tb(3), one Fe(2), and one Al(1) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one Tb(2), 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 Tb(1), one Tb(3), one Tb(4), one Fe(1), and one Al(2) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Li(1), one Tb(2), one Tb(3), one Tb(4), one Fe(1), and one Al(2) atom. In the tenth O site, O(10) is bonded in a 5-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(4), one Fe(2), and one Al(1) atom to form distorted corner-sharing OTb3AlFe trigonal bipyramids. In the twelfth O site, O(12) is bonded in a 6-coordinate geometry to one Li(1), one Tb(1), one Tb(2), one Tb(3), one Fe(1), and one Al(2) atom. is represented by the CIF card [CIF]
data_LiTb4Al2(FeO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.276
_cell_length_b   5.793
_cell_length_c   7.592
_cell_angle_alpha   89.119
_cell_angle_beta   89.533
_cell_angle_gamma   91.717
_symmetry_Int_Tables_number   1
_cell_volume   231.900
_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  0.891  0.247  0.850  1.0
  Tb  Tb1  1  0.541  0.582  0.245  1.0
  Tb  Tb2  1  0.999  0.082  0.240  1.0
  Tb  Tb3  1  0.462  0.432  0.752  1.0
  Tb  Tb4  1  0.045  0.891  0.732  1.0
  Al  Al5  1  0.010  0.492  0.493  1.0
  Al  Al6  1  0.506  0.005  0.995  1.0
  Fe  Fe7  1  0.011  0.546  0.025  1.0
  Fe  Fe8  1  0.522  0.012  0.493  1.0
  O  O9  1  0.405  0.968  0.241  1.0
  O  O10  1  0.132  0.466  0.265  1.0
  O  O11  1  0.638  0.051  0.750  1.0
  O  O12  1  0.899  0.523  0.732  1.0
  O  O13  1  0.802  0.839  0.048  1.0
  O  O14  1  0.719  0.310  0.433  1.0
  O  O15  1  0.201  0.200  0.556  1.0
  O  O16  1  0.335  0.718  0.937  1.0
  O  O17  1  0.210  0.174  0.937  1.0
  O  O18  1  0.310  0.689  0.550  1.0
  O  O19  1  0.826  0.800  0.439  1.0
  O  O20  1  0.689  0.308  0.045  1.0
[/CIF]
.