The material described by KEu(WO3)4 crystallizes in the orthorhombic Amm2 space group. K(1) is bonded in a 10-coordinate geometry to two equivalent O(2), four equivalent O(1), and four equivalent O(5) atoms. Eu(1) is bonded in a 12-coordinate geometry to two equivalent O(2), two equivalent O(3), four equivalent O(1), and four equivalent O(4) atoms. W(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 15-26°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one K(1), one Eu(1), and two equivalent W(1) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one K(1), one Eu(1), and two equivalent W(1) atoms. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Eu(1) and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to two equivalent Eu(1) and two equivalent W(1) atoms. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent W(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_KEu(WO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.575
_cell_length_b   5.575
_cell_length_c   7.866
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.706
_symmetry_Int_Tables_number   1
_cell_volume   244.422
_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
  K  K0  1  0.018  0.982  0.500  1.0
  Eu  Eu1  1  0.486  0.514  0.000  1.0
  W  W2  1  0.501  0.001  0.253  1.0
  W  W3  1  0.501  0.001  0.747  1.0
  W  W4  1  0.999  0.499  0.747  1.0
  W  W5  1  0.999  0.499  0.253  1.0
  O  O6  1  0.219  0.218  0.243  1.0
  O  O7  1  0.782  0.781  0.243  1.0
  O  O8  1  0.782  0.781  0.757  1.0
  O  O9  1  0.219  0.218  0.757  1.0
  O  O10  1  0.292  0.708  0.280  1.0
  O  O11  1  0.710  0.290  0.212  1.0
  O  O12  1  0.710  0.290  0.788  1.0
  O  O13  1  0.292  0.708  0.720  1.0
  O  O14  1  0.464  0.958  0.000  1.0
  O  O15  1  0.536  0.044  0.500  1.0
  O  O16  1  0.042  0.536  0.000  1.0
  O  O17  1  0.956  0.464  0.500  1.0
[/CIF]
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The material described by KEu(WO3)4 crystallizes in the orthorhombic Amm2 space group. K(1) is bonded in a 10-coordinate geometry to two equivalent O(2), four equivalent O(1), and four equivalent O(5) atoms. Eu(1) is bonded in a 12-coordinate geometry to two equivalent O(2), two equivalent O(3), four equivalent O(1), and four equivalent O(4) atoms. W(1) is bonded to one O(2), one O(3), one O(4), one O(5), and two equivalent O(1) atoms to form corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles range from 15-26°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one K(1), one Eu(1), and two equivalent W(1) atoms. In the second O site, O(2) is bonded in a distorted rectangular see-saw-like geometry to one K(1), one Eu(1), and two equivalent W(1) atoms. In the third O site, O(3) is bonded in a distorted T-shaped geometry to one Eu(1) and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to two equivalent Eu(1) and two equivalent W(1) atoms. In the fifth O site, O(5) is bonded in a 4-coordinate geometry to two equivalent K(1) and two equivalent W(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_KEu(WO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.575
_cell_length_b   5.575
_cell_length_c   7.866
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.706
_symmetry_Int_Tables_number   1
_cell_volume   244.422
_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
  K  K0  1  0.018  0.982  0.500  1.0
  Eu  Eu1  1  0.486  0.514  0.000  1.0
  W  W2  1  0.501  0.001  0.253  1.0
  W  W3  1  0.501  0.001  0.747  1.0
  W  W4  1  0.999  0.499  0.747  1.0
  W  W5  1  0.999  0.499  0.253  1.0
  O  O6  1  0.219  0.218  0.243  1.0
  O  O7  1  0.782  0.781  0.243  1.0
  O  O8  1  0.782  0.781  0.757  1.0
  O  O9  1  0.219  0.218  0.757  1.0
  O  O10  1  0.292  0.708  0.280  1.0
  O  O11  1  0.710  0.290  0.212  1.0
  O  O12  1  0.710  0.290  0.788  1.0
  O  O13  1  0.292  0.708  0.720  1.0
  O  O14  1  0.464  0.958  0.000  1.0
  O  O15  1  0.536  0.044  0.500  1.0
  O  O16  1  0.042  0.536  0.000  1.0
  O  O17  1  0.956  0.464  0.500  1.0
[/CIF]
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