The crystal structure described by PrTl(WO4)2 crystallizes in the monoclinic C2/m space group. Pr(1) is bonded in a 4-coordinate geometry to one O(4), one O(5), and two equivalent O(3) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(4), one O(5), two equivalent O(1), and two equivalent O(3) atoms to form distorted WO6 octahedra that share corners with four equivalent Tl(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-69°. In the second W site, W(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. Tl(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted TlO6 octahedra that share corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-69°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Tl(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one W(2) and one Tl(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Pr(1), one W(1), and one Tl(1) atom. In the fourth O site, O(4) is bonded to one Pr(1), one W(1), and two equivalent W(2) atoms to form distorted edge-sharing OPrW3 tetrahedra. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Pr(1) and one W(1) atom. is represented by the CIF card [CIF]
data_PrTl(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.217
_cell_length_b   8.217
_cell_length_c   7.894
_cell_angle_alpha   61.336
_cell_angle_beta   61.336
_cell_angle_gamma   91.469
_symmetry_Int_Tables_number   1
_cell_volume   387.093
_cell_formula_units_Z   2
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
  Pr  Pr0  1  0.736  0.736  0.434  1.0
  Pr  Pr1  1  0.264  0.264  0.566  1.0
  Tl  Tl2  1  0.719  0.281  0.000  1.0
  Tl  Tl3  1  0.281  0.719  0.000  1.0
  W  W4  1  0.244  0.244  1.000  1.0
  W  W5  1  0.756  0.756  0.000  1.0
  W  W6  1  0.843  0.157  0.500  1.0
  W  W7  1  0.157  0.843  0.500  1.0
  O  O8  1  0.331  0.098  0.210  1.0
  O  O9  1  0.669  0.902  0.790  1.0
  O  O10  1  0.902  0.669  0.790  1.0
  O  O11  1  0.098  0.331  0.210  1.0
  O  O12  1  0.679  0.180  0.407  1.0
  O  O13  1  0.321  0.820  0.593  1.0
  O  O14  1  0.820  0.321  0.593  1.0
  O  O15  1  0.180  0.679  0.407  1.0
  O  O16  1  0.678  0.895  0.142  1.0
  O  O17  1  0.322  0.105  0.858  1.0
  O  O18  1  0.105  0.322  0.858  1.0
  O  O19  1  0.895  0.678  0.142  1.0
  O  O20  1  0.973  0.973  0.349  1.0
  O  O21  1  0.027  0.027  0.651  1.0
  O  O22  1  0.536  0.536  0.205  1.0
  O  O23  1  0.464  0.464  0.795  1.0
[/CIF]
.
The crystal structure described by PrTl(WO4)2 crystallizes in the monoclinic C2/m space group. Pr(1) is bonded in a 4-coordinate geometry to one O(4), one O(5), and two equivalent O(3) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to one O(4), one O(5), two equivalent O(1), and two equivalent O(3) atoms to form distorted WO6 octahedra that share corners with four equivalent Tl(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-69°. In the second W site, W(2) is bonded in a 6-coordinate geometry to two equivalent O(1), two equivalent O(2), and two equivalent O(4) atoms. Tl(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form distorted TlO6 octahedra that share corners with four equivalent W(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-69°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one W(1), one W(2), and one Tl(1) atom. In the second O site, O(2) is bonded in a distorted single-bond geometry to one W(2) and one Tl(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to one Pr(1), one W(1), and one Tl(1) atom. In the fourth O site, O(4) is bonded to one Pr(1), one W(1), and two equivalent W(2) atoms to form distorted edge-sharing OPrW3 tetrahedra. In the fifth O site, O(5) is bonded in a bent 150 degrees geometry to one Pr(1) and one W(1) atom. is represented by the CIF card [CIF]
data_PrTl(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.217
_cell_length_b   8.217
_cell_length_c   7.894
_cell_angle_alpha   61.336
_cell_angle_beta   61.336
_cell_angle_gamma   91.469
_symmetry_Int_Tables_number   1
_cell_volume   387.093
_cell_formula_units_Z   2
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
  Pr  Pr0  1  0.736  0.736  0.434  1.0
  Pr  Pr1  1  0.264  0.264  0.566  1.0
  Tl  Tl2  1  0.719  0.281  0.000  1.0
  Tl  Tl3  1  0.281  0.719  0.000  1.0
  W  W4  1  0.244  0.244  1.000  1.0
  W  W5  1  0.756  0.756  0.000  1.0
  W  W6  1  0.843  0.157  0.500  1.0
  W  W7  1  0.157  0.843  0.500  1.0
  O  O8  1  0.331  0.098  0.210  1.0
  O  O9  1  0.669  0.902  0.790  1.0
  O  O10  1  0.902  0.669  0.790  1.0
  O  O11  1  0.098  0.331  0.210  1.0
  O  O12  1  0.679  0.180  0.407  1.0
  O  O13  1  0.321  0.820  0.593  1.0
  O  O14  1  0.820  0.321  0.593  1.0
  O  O15  1  0.180  0.679  0.407  1.0
  O  O16  1  0.678  0.895  0.142  1.0
  O  O17  1  0.322  0.105  0.858  1.0
  O  O18  1  0.105  0.322  0.858  1.0
  O  O19  1  0.895  0.678  0.142  1.0
  O  O20  1  0.973  0.973  0.349  1.0
  O  O21  1  0.027  0.027  0.651  1.0
  O  O22  1  0.536  0.536  0.205  1.0
  O  O23  1  0.464  0.464  0.795  1.0
[/CIF]
.