The structure described by KNd(WO4)2 crystallizes in the monoclinic C2/m space group. K(1) is bonded in a 8-coordinate geometry to one O(2), one O(4), two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms. Nd(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form distorted edge-sharing WO6 octahedra. In the second W site, W(2) is bonded to one O(2), one O(4), two equivalent O(3), and two equivalent O(5) atoms to form distorted edge-sharing WO6 octahedra. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one Nd(1), and one W(1) atom. In the second O site, O(2) is bonded to one K(1), two equivalent Nd(1), and one W(2) atom to form distorted OKNd2W tetrahedra that share corners with two equivalent O(4)KW3 tetrahedra and  an edgeedge with one O(2)KNd2W tetrahedra. In the third O site, O(3) is bonded in a 4-coordinate geometry to one K(1), one Nd(1), one W(1), and one W(2) atom. In the fourth O site, O(4) is bonded to one K(1), one W(2), and two equivalent W(1) atoms to form OKW3 tetrahedra that share corners with two equivalent O(2)KNd2W tetrahedra and  an edgeedge with one O(4)KW3 tetrahedra. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one Nd(1), and one W(2) atom. is represented by the CIF card [CIF]
data_KNd(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.440
_cell_length_b   7.440
_cell_length_c   7.515
_cell_angle_alpha   66.122
_cell_angle_beta   66.122
_cell_angle_gamma   93.119
_symmetry_Int_Tables_number   1
_cell_volume   335.762
_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  0.689  0.689  0.474  1.0
  K  K1  1  0.311  0.311  0.526  1.0
  Nd  Nd2  1  0.304  0.696  0.000  1.0
  Nd  Nd3  1  0.696  0.304  0.000  1.0
  W  W4  1  0.836  0.164  0.500  1.0
  W  W5  1  0.202  0.202  0.056  1.0
  W  W6  1  0.798  0.798  0.944  1.0
  W  W7  1  0.164  0.836  0.500  1.0
  O  O8  1  0.219  0.690  0.355  1.0
  O  O9  1  0.425  0.425  0.894  1.0
  O  O10  1  0.345  0.093  0.263  1.0
  O  O11  1  0.984  0.984  0.342  1.0
  O  O12  1  0.310  0.781  0.645  1.0
  O  O13  1  0.655  0.907  0.737  1.0
  O  O14  1  0.958  0.703  0.066  1.0
  O  O15  1  0.016  0.016  0.658  1.0
  O  O16  1  0.907  0.655  0.737  1.0
  O  O17  1  0.781  0.310  0.645  1.0
  O  O18  1  0.093  0.345  0.263  1.0
  O  O19  1  0.575  0.575  0.106  1.0
  O  O20  1  0.042  0.297  0.934  1.0
  O  O21  1  0.703  0.958  0.066  1.0
  O  O22  1  0.297  0.042  0.934  1.0
  O  O23  1  0.690  0.219  0.355  1.0
[/CIF]
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The structure described by KNd(WO4)2 crystallizes in the monoclinic C2/m space group. K(1) is bonded in a 8-coordinate geometry to one O(2), one O(4), two equivalent O(1), two equivalent O(3), and two equivalent O(5) atoms. Nd(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and two equivalent O(5) atoms. There are two inequivalent W sites. In the first W site, W(1) is bonded to two equivalent O(1), two equivalent O(3), and two equivalent O(4) atoms to form distorted edge-sharing WO6 octahedra. In the second W site, W(2) is bonded to one O(2), one O(4), two equivalent O(3), and two equivalent O(5) atoms to form distorted edge-sharing WO6 octahedra. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one K(1), one Nd(1), and one W(1) atom. In the second O site, O(2) is bonded to one K(1), two equivalent Nd(1), and one W(2) atom to form distorted OKNd2W tetrahedra that share corners with two equivalent O(4)KW3 tetrahedra and  an edgeedge with one O(2)KNd2W tetrahedra. In the third O site, O(3) is bonded in a 4-coordinate geometry to one K(1), one Nd(1), one W(1), and one W(2) atom. In the fourth O site, O(4) is bonded to one K(1), one W(2), and two equivalent W(1) atoms to form OKW3 tetrahedra that share corners with two equivalent O(2)KNd2W tetrahedra and  an edgeedge with one O(4)KW3 tetrahedra. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one K(1), one Nd(1), and one W(2) atom. is represented by the CIF card [CIF]
data_KNd(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.440
_cell_length_b   7.440
_cell_length_c   7.515
_cell_angle_alpha   66.122
_cell_angle_beta   66.122
_cell_angle_gamma   93.119
_symmetry_Int_Tables_number   1
_cell_volume   335.762
_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  0.689  0.689  0.474  1.0
  K  K1  1  0.311  0.311  0.526  1.0
  Nd  Nd2  1  0.304  0.696  0.000  1.0
  Nd  Nd3  1  0.696  0.304  0.000  1.0
  W  W4  1  0.836  0.164  0.500  1.0
  W  W5  1  0.202  0.202  0.056  1.0
  W  W6  1  0.798  0.798  0.944  1.0
  W  W7  1  0.164  0.836  0.500  1.0
  O  O8  1  0.219  0.690  0.355  1.0
  O  O9  1  0.425  0.425  0.894  1.0
  O  O10  1  0.345  0.093  0.263  1.0
  O  O11  1  0.984  0.984  0.342  1.0
  O  O12  1  0.310  0.781  0.645  1.0
  O  O13  1  0.655  0.907  0.737  1.0
  O  O14  1  0.958  0.703  0.066  1.0
  O  O15  1  0.016  0.016  0.658  1.0
  O  O16  1  0.907  0.655  0.737  1.0
  O  O17  1  0.781  0.310  0.645  1.0
  O  O18  1  0.093  0.345  0.263  1.0
  O  O19  1  0.575  0.575  0.106  1.0
  O  O20  1  0.042  0.297  0.934  1.0
  O  O21  1  0.703  0.958  0.066  1.0
  O  O22  1  0.297  0.042  0.934  1.0
  O  O23  1  0.690  0.219  0.355  1.0
[/CIF]
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