The material structure described by SeO4 is Silicon tetrafluoride-like structured and crystallizes in the orthorhombic P2_12_12_1 space group. The structure is zero-dimensional and consists of four SeO4 clusters. 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 single-bond geometry to one Se(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Se(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Se(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Se(1) atom. is represented by the CIF card [CIF]
data_SeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.807
_cell_length_b   8.312
_cell_length_c   8.797
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   351.516
_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
  Se  Se0  1  0.816  0.034  0.115  1.0
  Se  Se1  1  0.316  0.466  0.885  1.0
  Se  Se2  1  0.684  0.966  0.615  1.0
  Se  Se3  1  0.184  0.534  0.385  1.0
  O  O4  1  0.957  0.123  0.267  1.0
  O  O5  1  0.457  0.377  0.733  1.0
  O  O6  1  0.543  0.877  0.767  1.0
  O  O7  1  0.043  0.623  0.233  1.0
  O  O8  1  0.557  0.145  0.038  1.0
  O  O9  1  0.057  0.355  0.962  1.0
  O  O10  1  0.943  0.855  0.538  1.0
  O  O11  1  0.443  0.645  0.462  1.0
  O  O12  1  0.064  0.996  0.984  1.0
  O  O13  1  0.564  0.504  0.016  1.0
  O  O14  1  0.436  0.004  0.484  1.0
  O  O15  1  0.936  0.496  0.516  1.0
  O  O16  1  0.660  0.861  0.167  1.0
  O  O17  1  0.160  0.639  0.833  1.0
  O  O18  1  0.840  0.139  0.667  1.0
  O  O19  1  0.340  0.361  0.333  1.0
[/CIF]
.
The material structure described by SeO4 is Silicon tetrafluoride-like structured and crystallizes in the orthorhombic P2_12_12_1 space group. The structure is zero-dimensional and consists of four SeO4 clusters. 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 single-bond geometry to one Se(1) atom. In the second O site, O(2) is bonded in a single-bond geometry to one Se(1) atom. In the third O site, O(3) is bonded in a single-bond geometry to one Se(1) atom. In the fourth O site, O(4) is bonded in a single-bond geometry to one Se(1) atom. is represented by the CIF card [CIF]
data_SeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.807
_cell_length_b   8.312
_cell_length_c   8.797
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   351.516
_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
  Se  Se0  1  0.816  0.034  0.115  1.0
  Se  Se1  1  0.316  0.466  0.885  1.0
  Se  Se2  1  0.684  0.966  0.615  1.0
  Se  Se3  1  0.184  0.534  0.385  1.0
  O  O4  1  0.957  0.123  0.267  1.0
  O  O5  1  0.457  0.377  0.733  1.0
  O  O6  1  0.543  0.877  0.767  1.0
  O  O7  1  0.043  0.623  0.233  1.0
  O  O8  1  0.557  0.145  0.038  1.0
  O  O9  1  0.057  0.355  0.962  1.0
  O  O10  1  0.943  0.855  0.538  1.0
  O  O11  1  0.443  0.645  0.462  1.0
  O  O12  1  0.064  0.996  0.984  1.0
  O  O13  1  0.564  0.504  0.016  1.0
  O  O14  1  0.436  0.004  0.484  1.0
  O  O15  1  0.936  0.496  0.516  1.0
  O  O16  1  0.660  0.861  0.167  1.0
  O  O17  1  0.160  0.639  0.833  1.0
  O  O18  1  0.840  0.139  0.667  1.0
  O  O19  1  0.340  0.361  0.333  1.0
[/CIF]
.