The structure described by KSm(WO4)2 crystallizes in the monoclinic C2/c space group. K(1) is bonded in a 10-coordinate geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(1) atoms. Sm(1) is bonded in a 8-coordinate geometry to two equivalent O(3), two equivalent O(4), and four equivalent O(2) atoms. W(1) is bonded in a 6-coordinate geometry to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent W(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one K(1), two equivalent Sm(1), and one W(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one K(1), one Sm(1), and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(1), one Sm(1), and one W(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KSm(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.540
_cell_length_b   7.540
_cell_length_c   7.589
_cell_angle_alpha   62.203
_cell_angle_beta   62.203
_cell_angle_gamma   88.859
_symmetry_Int_Tables_number   1
_cell_volume   326.687
_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
  K  K0  1  0.203  0.797  0.750  1.0
  K  K1  1  0.797  0.203  0.250  1.0
  Sm  Sm2  1  0.772  0.228  0.750  1.0
  Sm  Sm3  1  0.228  0.772  0.250  1.0
  W  W4  1  0.695  0.695  0.765  1.0
  W  W5  1  0.305  0.305  0.235  1.0
  W  W6  1  0.305  0.305  0.735  1.0
  W  W7  1  0.695  0.695  0.265  1.0
  O  O8  1  0.618  0.762  0.555  1.0
  O  O9  1  0.382  0.238  0.445  1.0
  O  O10  1  0.238  0.382  0.945  1.0
  O  O11  1  0.762  0.618  0.055  1.0
  O  O12  1  0.386  0.071  0.869  1.0
  O  O13  1  0.614  0.929  0.131  1.0
  O  O14  1  0.929  0.614  0.631  1.0
  O  O15  1  0.071  0.386  0.369  1.0
  O  O16  1  0.583  0.369  0.975  1.0
  O  O17  1  0.417  0.631  0.025  1.0
  O  O18  1  0.631  0.417  0.525  1.0
  O  O19  1  0.369  0.583  0.475  1.0
  O  O20  1  0.793  0.952  0.685  1.0
  O  O21  1  0.207  0.048  0.315  1.0
  O  O22  1  0.048  0.207  0.815  1.0
  O  O23  1  0.952  0.793  0.185  1.0
[/CIF]
.
The structure described by KSm(WO4)2 crystallizes in the monoclinic C2/c space group. K(1) is bonded in a 10-coordinate geometry to two equivalent O(2), two equivalent O(3), two equivalent O(4), and four equivalent O(1) atoms. Sm(1) is bonded in a 8-coordinate geometry to two equivalent O(3), two equivalent O(4), and four equivalent O(2) atoms. W(1) is bonded in a 6-coordinate geometry to one O(2), one O(4), two equivalent O(1), and two equivalent O(3) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent W(1) atoms. In the second O site, O(2) is bonded in a 4-coordinate geometry to one K(1), two equivalent Sm(1), and one W(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one K(1), one Sm(1), and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to one K(1), one Sm(1), and one W(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_KSm(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.540
_cell_length_b   7.540
_cell_length_c   7.589
_cell_angle_alpha   62.203
_cell_angle_beta   62.203
_cell_angle_gamma   88.859
_symmetry_Int_Tables_number   1
_cell_volume   326.687
_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
  K  K0  1  0.203  0.797  0.750  1.0
  K  K1  1  0.797  0.203  0.250  1.0
  Sm  Sm2  1  0.772  0.228  0.750  1.0
  Sm  Sm3  1  0.228  0.772  0.250  1.0
  W  W4  1  0.695  0.695  0.765  1.0
  W  W5  1  0.305  0.305  0.235  1.0
  W  W6  1  0.305  0.305  0.735  1.0
  W  W7  1  0.695  0.695  0.265  1.0
  O  O8  1  0.618  0.762  0.555  1.0
  O  O9  1  0.382  0.238  0.445  1.0
  O  O10  1  0.238  0.382  0.945  1.0
  O  O11  1  0.762  0.618  0.055  1.0
  O  O12  1  0.386  0.071  0.869  1.0
  O  O13  1  0.614  0.929  0.131  1.0
  O  O14  1  0.929  0.614  0.631  1.0
  O  O15  1  0.071  0.386  0.369  1.0
  O  O16  1  0.583  0.369  0.975  1.0
  O  O17  1  0.417  0.631  0.025  1.0
  O  O18  1  0.631  0.417  0.525  1.0
  O  O19  1  0.369  0.583  0.475  1.0
  O  O20  1  0.793  0.952  0.685  1.0
  O  O21  1  0.207  0.048  0.315  1.0
  O  O22  1  0.048  0.207  0.815  1.0
  O  O23  1  0.952  0.793  0.185  1.0
[/CIF]
.