The crystal structure described by Rb2Li14Tb3O14 crystallizes in the orthorhombic Immm space group. Rb(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(3) atoms. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Tb(2)O6 octahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra,  an edgeedge with one Tb(1)O6 octahedra,  an edgeedge with one Tb(2)O6 octahedra,  an edgeedge with one Li(1)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 67°. In the second Li site, Li(2) is bonded to one O(3), one O(4), and two equivalent O(1) atoms to form distorted LiO4 tetrahedra that share  a cornercorner with one Tb(1)O6 octahedra, corners with two equivalent Tb(2)O6 octahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra,  an edgeedge with one Tb(2)O6 octahedra,  an edgeedge with one Li(2)O4 tetrahedra, and edges with two equivalent Li(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 5-41°. In the third Li site, Li(3) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form LiO4 tetrahedra that share corners with two equivalent Tb(1)O6 octahedra, corners with two equivalent Tb(2)O6 octahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra,  an edgeedge with one Li(3)O4 tetrahedra, and edges with four equivalent Li(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 22-40°. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to two equivalent O(2) and four equivalent O(4) atoms to form TbO6 octahedra that share corners with four equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(3)O4 tetrahedra, edges with two equivalent Tb(2)O6 octahedra, and edges with eight equivalent Li(1)O4 tetrahedra. In the second Tb site, Tb(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form TbO6 octahedra that share corners with two equivalent Li(3)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra,  an edgeedge with one Tb(1)O6 octahedra, edges with two equivalent Li(2)O4 tetrahedra, and edges with four equivalent Li(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Rb(1), two equivalent Li(1), two equivalent Li(2), and one Tb(2) atom. In the second O site, O(2) is bonded to two equivalent Li(3), four equivalent Li(1), and one Tb(1) atom to form distorted OLi6Tb hexagonal pyramids that share  a cornercorner with one O(2)Li6Tb hexagonal pyramid,  an edgeedge with one O(2)Li6Tb hexagonal pyramid, and edges with four equivalent O(4)Li3Tb2 square pyramids. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Rb(1), one Li(2), one Li(3), two equivalent Li(1), and one Tb(2) atom. In the fourth O site, O(4) is bonded to one Li(2), two equivalent Li(1), one Tb(1), and one Tb(2) atom to form distorted OLi3Tb2 square pyramids that share corners with two equivalent O(4)Li3Tb2 square pyramids, edges with two equivalent O(2)Li6Tb hexagonal pyramids, and  an edgeedge with one O(4)Li3Tb2 square pyramid. is represented by the CIF file [CIF]
data_Rb2Li14Tb3O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.619
_cell_length_b   8.619
_cell_length_c   8.619
_cell_angle_alpha   128.547
_cell_angle_beta   123.257
_cell_angle_gamma   80.122
_symmetry_Int_Tables_number   1
_cell_volume   404.282
_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
  Rb  Rb0  1  0.500  0.235  0.735  1.0
  Rb  Rb1  1  0.500  0.765  0.265  1.0
  Li  Li2  1  0.711  0.593  0.571  1.0
  Li  Li3  1  0.979  0.860  0.571  1.0
  Li  Li4  1  0.289  0.407  0.429  1.0
  Li  Li5  1  0.711  0.140  0.119  1.0
  Li  Li6  1  0.979  0.407  0.119  1.0
  Li  Li7  1  0.021  0.593  0.881  1.0
  Li  Li8  1  0.122  0.768  0.354  1.0
  Li  Li9  1  0.155  0.500  0.655  1.0
  Li  Li10  1  0.585  0.232  0.354  1.0
  Li  Li11  1  0.021  0.140  0.429  1.0
  Li  Li12  1  0.415  0.768  0.646  1.0
  Li  Li13  1  0.845  0.500  0.345  1.0
  Li  Li14  1  0.878  0.232  0.646  1.0
  Li  Li15  1  0.289  0.860  0.881  1.0
  Tb  Tb16  1  0.000  0.000  0.000  1.0
  Tb  Tb17  1  0.270  0.270  0.000  1.0
  Tb  Tb18  1  0.730  0.730  0.000  1.0
  O  O19  1  0.248  0.950  0.702  1.0
  O  O20  1  0.000  0.702  0.702  1.0
  O  O21  1  0.752  0.050  0.298  1.0
  O  O22  1  0.848  0.627  0.220  1.0
  O  O23  1  0.152  0.373  0.780  1.0
  O  O24  1  0.316  0.131  0.184  1.0
  O  O25  1  0.752  0.453  0.702  1.0
  O  O26  1  0.684  0.869  0.816  1.0
  O  O27  1  0.248  0.547  0.298  1.0
  O  O28  1  0.053  0.869  0.184  1.0
  O  O29  1  0.407  0.627  0.780  1.0
  O  O30  1  0.947  0.131  0.816  1.0
  O  O31  1  0.000  0.298  0.298  1.0
  O  O32  1  0.593  0.373  0.220  1.0
[/CIF]
.
The crystal structure described by Rb2Li14Tb3O14 crystallizes in the orthorhombic Immm space group. Rb(1) is bonded in a 6-coordinate geometry to two equivalent O(1) and four equivalent O(3) atoms. There are three inequivalent Li sites. In the first Li site, Li(1) is bonded to one O(1), one O(2), one O(3), and one O(4) atom to form distorted LiO4 tetrahedra that share  a cornercorner with one Tb(2)O6 octahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra,  an edgeedge with one Tb(1)O6 octahedra,  an edgeedge with one Tb(2)O6 octahedra,  an edgeedge with one Li(1)O4 tetrahedra,  an edgeedge with one Li(2)O4 tetrahedra, and  an edgeedge with one Li(3)O4 tetrahedra. The corner-sharing octahedral tilt angles are 67°. In the second Li site, Li(2) is bonded to one O(3), one O(4), and two equivalent O(1) atoms to form distorted LiO4 tetrahedra that share  a cornercorner with one Tb(1)O6 octahedra, corners with two equivalent Tb(2)O6 octahedra,  a cornercorner with one Li(3)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra,  an edgeedge with one Tb(2)O6 octahedra,  an edgeedge with one Li(2)O4 tetrahedra, and edges with two equivalent Li(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 5-41°. In the third Li site, Li(3) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form LiO4 tetrahedra that share corners with two equivalent Tb(1)O6 octahedra, corners with two equivalent Tb(2)O6 octahedra, corners with two equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra,  an edgeedge with one Li(3)O4 tetrahedra, and edges with four equivalent Li(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 22-40°. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to two equivalent O(2) and four equivalent O(4) atoms to form TbO6 octahedra that share corners with four equivalent Li(2)O4 tetrahedra, corners with four equivalent Li(3)O4 tetrahedra, edges with two equivalent Tb(2)O6 octahedra, and edges with eight equivalent Li(1)O4 tetrahedra. In the second Tb site, Tb(2) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form TbO6 octahedra that share corners with two equivalent Li(3)O4 tetrahedra, corners with four equivalent Li(1)O4 tetrahedra, corners with four equivalent Li(2)O4 tetrahedra,  an edgeedge with one Tb(1)O6 octahedra, edges with two equivalent Li(2)O4 tetrahedra, and edges with four equivalent Li(1)O4 tetrahedra. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Rb(1), two equivalent Li(1), two equivalent Li(2), and one Tb(2) atom. In the second O site, O(2) is bonded to two equivalent Li(3), four equivalent Li(1), and one Tb(1) atom to form distorted OLi6Tb hexagonal pyramids that share  a cornercorner with one O(2)Li6Tb hexagonal pyramid,  an edgeedge with one O(2)Li6Tb hexagonal pyramid, and edges with four equivalent O(4)Li3Tb2 square pyramids. In the third O site, O(3) is bonded in a 5-coordinate geometry to two equivalent Rb(1), one Li(2), one Li(3), two equivalent Li(1), and one Tb(2) atom. In the fourth O site, O(4) is bonded to one Li(2), two equivalent Li(1), one Tb(1), and one Tb(2) atom to form distorted OLi3Tb2 square pyramids that share corners with two equivalent O(4)Li3Tb2 square pyramids, edges with two equivalent O(2)Li6Tb hexagonal pyramids, and  an edgeedge with one O(4)Li3Tb2 square pyramid. is represented by the CIF file [CIF]
data_Rb2Li14Tb3O14
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.619
_cell_length_b   8.619
_cell_length_c   8.619
_cell_angle_alpha   128.547
_cell_angle_beta   123.257
_cell_angle_gamma   80.122
_symmetry_Int_Tables_number   1
_cell_volume   404.282
_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
  Rb  Rb0  1  0.500  0.235  0.735  1.0
  Rb  Rb1  1  0.500  0.765  0.265  1.0
  Li  Li2  1  0.711  0.593  0.571  1.0
  Li  Li3  1  0.979  0.860  0.571  1.0
  Li  Li4  1  0.289  0.407  0.429  1.0
  Li  Li5  1  0.711  0.140  0.119  1.0
  Li  Li6  1  0.979  0.407  0.119  1.0
  Li  Li7  1  0.021  0.593  0.881  1.0
  Li  Li8  1  0.122  0.768  0.354  1.0
  Li  Li9  1  0.155  0.500  0.655  1.0
  Li  Li10  1  0.585  0.232  0.354  1.0
  Li  Li11  1  0.021  0.140  0.429  1.0
  Li  Li12  1  0.415  0.768  0.646  1.0
  Li  Li13  1  0.845  0.500  0.345  1.0
  Li  Li14  1  0.878  0.232  0.646  1.0
  Li  Li15  1  0.289  0.860  0.881  1.0
  Tb  Tb16  1  0.000  0.000  0.000  1.0
  Tb  Tb17  1  0.270  0.270  0.000  1.0
  Tb  Tb18  1  0.730  0.730  0.000  1.0
  O  O19  1  0.248  0.950  0.702  1.0
  O  O20  1  0.000  0.702  0.702  1.0
  O  O21  1  0.752  0.050  0.298  1.0
  O  O22  1  0.848  0.627  0.220  1.0
  O  O23  1  0.152  0.373  0.780  1.0
  O  O24  1  0.316  0.131  0.184  1.0
  O  O25  1  0.752  0.453  0.702  1.0
  O  O26  1  0.684  0.869  0.816  1.0
  O  O27  1  0.248  0.547  0.298  1.0
  O  O28  1  0.053  0.869  0.184  1.0
  O  O29  1  0.407  0.627  0.780  1.0
  O  O30  1  0.947  0.131  0.816  1.0
  O  O31  1  0.000  0.298  0.298  1.0
  O  O32  1  0.593  0.373  0.220  1.0
[/CIF]
.