The compound described by SrEu(WO3)4 crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded to two equivalent O(2), two equivalent O(3), four equivalent O(1), and four equivalent O(4) atoms to form distorted SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with eight equivalent Eu(1)O12 cuboctahedra, and faces with eight equivalent W(1)O6 octahedra. Eu(1) is bonded to two equivalent O(2), two equivalent O(3), four equivalent O(1), and four equivalent O(5) atoms to form distorted EuO12 cuboctahedra that share corners with four equivalent Eu(1)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, and faces with eight equivalent W(1)O6 octahedra. 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 WO6 octahedra that share corners with six equivalent W(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Eu(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-13°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Eu(1), and two equivalent W(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Sr(1), one Eu(1), and two equivalent W(1) atoms. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Sr(1), one Eu(1), and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Sr(1) and two equivalent W(1) atoms. In the fifth O site, O(5) is bonded in a distorted square co-planar geometry to two equivalent Eu(1) and two equivalent W(1) atoms. is represented by the CIF file [CIF]
data_SrEu(WO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.598
_cell_length_b   5.598
_cell_length_c   8.060
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.970
_symmetry_Int_Tables_number   1
_cell_volume   252.551
_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
  Sr  Sr0  1  0.005  0.005  0.000  1.0
  Eu  Eu1  1  0.499  0.499  0.500  1.0
  W  W2  1  0.501  0.000  0.750  1.0
  W  W3  1  0.501  0.000  0.250  1.0
  W  W4  1  0.000  0.501  0.250  1.0
  W  W5  1  0.000  0.501  0.750  1.0
  O  O6  1  0.724  0.277  0.746  1.0
  O  O7  1  0.277  0.724  0.746  1.0
  O  O8  1  0.277  0.724  0.254  1.0
  O  O9  1  0.724  0.277  0.254  1.0
  O  O10  1  0.767  0.767  0.771  1.0
  O  O11  1  0.239  0.239  0.728  1.0
  O  O12  1  0.239  0.239  0.272  1.0
  O  O13  1  0.767  0.767  0.229  1.0
  O  O14  1  0.467  0.015  0.000  1.0
  O  O15  1  0.525  0.973  0.500  1.0
  O  O16  1  0.015  0.467  0.000  1.0
  O  O17  1  0.973  0.525  0.500  1.0
[/CIF]
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The compound described by SrEu(WO3)4 crystallizes in the orthorhombic Amm2 space group. Sr(1) is bonded to two equivalent O(2), two equivalent O(3), four equivalent O(1), and four equivalent O(4) atoms to form distorted SrO12 cuboctahedra that share corners with four equivalent Sr(1)O12 cuboctahedra, corners with eight equivalent Eu(1)O12 cuboctahedra, and faces with eight equivalent W(1)O6 octahedra. Eu(1) is bonded to two equivalent O(2), two equivalent O(3), four equivalent O(1), and four equivalent O(5) atoms to form distorted EuO12 cuboctahedra that share corners with four equivalent Eu(1)O12 cuboctahedra, corners with eight equivalent Sr(1)O12 cuboctahedra, and faces with eight equivalent W(1)O6 octahedra. 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 WO6 octahedra that share corners with six equivalent W(1)O6 octahedra, faces with two equivalent Sr(1)O12 cuboctahedra, and faces with two equivalent Eu(1)O12 cuboctahedra. The corner-sharing octahedral tilt angles range from 11-13°. There are five inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Eu(1), and two equivalent W(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to one Sr(1), one Eu(1), and two equivalent W(1) atoms. In the third O site, O(3) is bonded in a distorted rectangular see-saw-like geometry to one Sr(1), one Eu(1), and two equivalent W(1) atoms. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to two equivalent Sr(1) and two equivalent W(1) atoms. In the fifth O site, O(5) is bonded in a distorted square co-planar geometry to two equivalent Eu(1) and two equivalent W(1) atoms. is represented by the CIF file [CIF]
data_SrEu(WO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.598
_cell_length_b   5.598
_cell_length_c   8.060
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   89.970
_symmetry_Int_Tables_number   1
_cell_volume   252.551
_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
  Sr  Sr0  1  0.005  0.005  0.000  1.0
  Eu  Eu1  1  0.499  0.499  0.500  1.0
  W  W2  1  0.501  0.000  0.750  1.0
  W  W3  1  0.501  0.000  0.250  1.0
  W  W4  1  0.000  0.501  0.250  1.0
  W  W5  1  0.000  0.501  0.750  1.0
  O  O6  1  0.724  0.277  0.746  1.0
  O  O7  1  0.277  0.724  0.746  1.0
  O  O8  1  0.277  0.724  0.254  1.0
  O  O9  1  0.724  0.277  0.254  1.0
  O  O10  1  0.767  0.767  0.771  1.0
  O  O11  1  0.239  0.239  0.728  1.0
  O  O12  1  0.239  0.239  0.272  1.0
  O  O13  1  0.767  0.767  0.229  1.0
  O  O14  1  0.467  0.015  0.000  1.0
  O  O15  1  0.525  0.973  0.500  1.0
  O  O16  1  0.015  0.467  0.000  1.0
  O  O17  1  0.973  0.525  0.500  1.0
[/CIF]
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