The compound described by EuSeO4 crystallizes in the monoclinic P2_1/c space group. Eu(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and three equivalent O(2) atoms. Se(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Eu(1) and one Se(1) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to three equivalent Eu(1) and one Se(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Eu(1) and one Se(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Eu(1) and one Se(1) atom. is represented by the CIF card [CIF]
data_EuSeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.309
_cell_length_b   6.846
_cell_length_c   8.597
_cell_angle_alpha   53.074
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   343.900
_cell_formula_units_Z   4
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
  Eu  Eu0  1  0.845  0.822  0.779  1.0
  Eu  Eu1  1  0.345  0.178  0.721  1.0
  Eu  Eu2  1  0.655  0.822  0.279  1.0
  Eu  Eu3  1  0.155  0.178  0.221  1.0
  Se  Se4  1  0.836  0.311  0.805  1.0
  Se  Se5  1  0.336  0.689  0.695  1.0
  Se  Se6  1  0.664  0.311  0.305  1.0
  Se  Se7  1  0.164  0.689  0.195  1.0
  O  O8  1  0.891  0.337  0.980  1.0
  O  O9  1  0.660  0.116  0.886  1.0
  O  O10  1  0.288  0.402  0.881  1.0
  O  O11  1  0.499  0.813  0.746  1.0
  O  O12  1  0.788  0.598  0.619  1.0
  O  O13  1  0.999  0.187  0.754  1.0
  O  O14  1  0.160  0.884  0.614  1.0
  O  O15  1  0.391  0.663  0.520  1.0
  O  O16  1  0.609  0.337  0.480  1.0
  O  O17  1  0.840  0.116  0.386  1.0
  O  O18  1  0.001  0.813  0.246  1.0
  O  O19  1  0.212  0.402  0.381  1.0
  O  O20  1  0.501  0.187  0.254  1.0
  O  O21  1  0.712  0.598  0.119  1.0
  O  O22  1  0.340  0.884  0.114  1.0
  O  O23  1  0.109  0.663  0.020  1.0
[/CIF]
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The compound described by EuSeO4 crystallizes in the monoclinic P2_1/c space group. Eu(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(3), two equivalent O(4), and three equivalent O(2) atoms. Se(1) is bonded in a tetrahedral geometry to one O(1), one O(2), one O(3), and one O(4) atom. There are four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to two equivalent Eu(1) and one Se(1) atom. In the second O site, O(2) is bonded in a 1-coordinate geometry to three equivalent Eu(1) and one Se(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Eu(1) and one Se(1) atom. In the fourth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Eu(1) and one Se(1) atom. is represented by the CIF card [CIF]
data_EuSeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.309
_cell_length_b   6.846
_cell_length_c   8.597
_cell_angle_alpha   53.074
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   343.900
_cell_formula_units_Z   4
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
  Eu  Eu0  1  0.845  0.822  0.779  1.0
  Eu  Eu1  1  0.345  0.178  0.721  1.0
  Eu  Eu2  1  0.655  0.822  0.279  1.0
  Eu  Eu3  1  0.155  0.178  0.221  1.0
  Se  Se4  1  0.836  0.311  0.805  1.0
  Se  Se5  1  0.336  0.689  0.695  1.0
  Se  Se6  1  0.664  0.311  0.305  1.0
  Se  Se7  1  0.164  0.689  0.195  1.0
  O  O8  1  0.891  0.337  0.980  1.0
  O  O9  1  0.660  0.116  0.886  1.0
  O  O10  1  0.288  0.402  0.881  1.0
  O  O11  1  0.499  0.813  0.746  1.0
  O  O12  1  0.788  0.598  0.619  1.0
  O  O13  1  0.999  0.187  0.754  1.0
  O  O14  1  0.160  0.884  0.614  1.0
  O  O15  1  0.391  0.663  0.520  1.0
  O  O16  1  0.609  0.337  0.480  1.0
  O  O17  1  0.840  0.116  0.386  1.0
  O  O18  1  0.001  0.813  0.246  1.0
  O  O19  1  0.212  0.402  0.381  1.0
  O  O20  1  0.501  0.187  0.254  1.0
  O  O21  1  0.712  0.598  0.119  1.0
  O  O22  1  0.340  0.884  0.114  1.0
  O  O23  1  0.109  0.663  0.020  1.0
[/CIF]
.