The compound described by SrSeO4 crystallizes in the monoclinic P2_1/c space group. Sr(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and three equivalent O(4) 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 Sr(1) and one Se(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one Se(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one Se(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to three equivalent Sr(1) and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrSeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.361
_cell_length_b   6.879
_cell_length_c   8.677
_cell_angle_alpha   52.880
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   350.333
_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
  Sr  Sr0  1  0.656  0.822  0.278  1.0
  Sr  Sr1  1  0.156  0.178  0.222  1.0
  Sr  Sr2  1  0.344  0.178  0.722  1.0
  Sr  Sr3  1  0.844  0.822  0.778  1.0
  Se  Se4  1  0.665  0.308  0.306  1.0
  Se  Se5  1  0.165  0.692  0.194  1.0
  Se  Se6  1  0.335  0.692  0.694  1.0
  Se  Se7  1  0.835  0.308  0.806  1.0
  O  O8  1  0.716  0.590  0.123  1.0
  O  O9  1  0.216  0.410  0.377  1.0
  O  O10  1  0.284  0.410  0.877  1.0
  O  O11  1  0.784  0.590  0.623  1.0
  O  O12  1  0.611  0.328  0.481  1.0
  O  O13  1  0.111  0.672  0.019  1.0
  O  O14  1  0.389  0.672  0.519  1.0
  O  O15  1  0.889  0.328  0.981  1.0
  O  O16  1  0.997  0.191  0.753  1.0
  O  O17  1  0.497  0.809  0.747  1.0
  O  O18  1  0.003  0.809  0.247  1.0
  O  O19  1  0.503  0.191  0.253  1.0
  O  O20  1  0.663  0.114  0.885  1.0
  O  O21  1  0.163  0.886  0.615  1.0
  O  O22  1  0.337  0.886  0.115  1.0
  O  O23  1  0.837  0.114  0.385  1.0
[/CIF]
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The compound described by SrSeO4 crystallizes in the monoclinic P2_1/c space group. Sr(1) is bonded in a 9-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(3), and three equivalent O(4) 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 Sr(1) and one Se(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one Se(1) atom. In the third O site, O(3) is bonded in a 3-coordinate geometry to two equivalent Sr(1) and one Se(1) atom. In the fourth O site, O(4) is bonded in a 1-coordinate geometry to three equivalent Sr(1) and one Se(1) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrSeO4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.361
_cell_length_b   6.879
_cell_length_c   8.677
_cell_angle_alpha   52.880
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   350.333
_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
  Sr  Sr0  1  0.656  0.822  0.278  1.0
  Sr  Sr1  1  0.156  0.178  0.222  1.0
  Sr  Sr2  1  0.344  0.178  0.722  1.0
  Sr  Sr3  1  0.844  0.822  0.778  1.0
  Se  Se4  1  0.665  0.308  0.306  1.0
  Se  Se5  1  0.165  0.692  0.194  1.0
  Se  Se6  1  0.335  0.692  0.694  1.0
  Se  Se7  1  0.835  0.308  0.806  1.0
  O  O8  1  0.716  0.590  0.123  1.0
  O  O9  1  0.216  0.410  0.377  1.0
  O  O10  1  0.284  0.410  0.877  1.0
  O  O11  1  0.784  0.590  0.623  1.0
  O  O12  1  0.611  0.328  0.481  1.0
  O  O13  1  0.111  0.672  0.019  1.0
  O  O14  1  0.389  0.672  0.519  1.0
  O  O15  1  0.889  0.328  0.981  1.0
  O  O16  1  0.997  0.191  0.753  1.0
  O  O17  1  0.497  0.809  0.747  1.0
  O  O18  1  0.003  0.809  0.247  1.0
  O  O19  1  0.503  0.191  0.253  1.0
  O  O20  1  0.663  0.114  0.885  1.0
  O  O21  1  0.163  0.886  0.615  1.0
  O  O22  1  0.337  0.886  0.115  1.0
  O  O23  1  0.837  0.114  0.385  1.0
[/CIF]
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