The material described by BaOsO2 crystallizes in the tetragonal I4_1/amd space group. Ba(1) is bonded to six equivalent O(1) atoms to form edge-sharing BaO6 octahedra. Os(1) is bonded in a distorted rectangular see-saw-like geometry to four equivalent O(1) atoms. O(1) is bonded to three equivalent Ba(1) and two equivalent Os(1) atoms to form a mixture of distorted corner and edge-sharing OBa3Os2 square pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaOsO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.943
_cell_length_b   7.943
_cell_length_c   7.943
_cell_angle_alpha   131.553
_cell_angle_beta   131.553
_cell_angle_gamma   70.936
_symmetry_Int_Tables_number   1
_cell_volume   274.849
_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
  Ba  Ba0  1  0.875  0.625  0.250  1.0
  Ba  Ba1  1  0.375  0.625  0.750  1.0
  Ba  Ba2  1  0.375  0.625  0.250  1.0
  Ba  Ba3  1  0.375  0.125  0.750  1.0
  Os  Os4  1  0.375  0.125  0.250  1.0
  Os  Os5  1  0.875  0.125  0.750  1.0
  Os  Os6  1  0.875  0.125  0.250  1.0
  Os  Os7  1  0.875  0.625  0.750  1.0
  O  O8  1  0.163  0.347  0.184  1.0
  O  O9  1  0.163  0.978  0.816  1.0
  O  O10  1  0.097  0.413  0.684  1.0
  O  O11  1  0.587  0.903  0.316  1.0
  O  O12  1  0.728  0.413  0.316  1.0
  O  O13  1  0.587  0.272  0.684  1.0
  O  O14  1  0.653  0.837  0.816  1.0
  O  O15  1  0.022  0.837  0.184  1.0
[/CIF]
.
The material described by BaOsO2 crystallizes in the tetragonal I4_1/amd space group. Ba(1) is bonded to six equivalent O(1) atoms to form edge-sharing BaO6 octahedra. Os(1) is bonded in a distorted rectangular see-saw-like geometry to four equivalent O(1) atoms. O(1) is bonded to three equivalent Ba(1) and two equivalent Os(1) atoms to form a mixture of distorted corner and edge-sharing OBa3Os2 square pyramids. is represented by the Crystallographic Information File (CIF) [CIF]
data_BaOsO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.943
_cell_length_b   7.943
_cell_length_c   7.943
_cell_angle_alpha   131.553
_cell_angle_beta   131.553
_cell_angle_gamma   70.936
_symmetry_Int_Tables_number   1
_cell_volume   274.849
_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
  Ba  Ba0  1  0.875  0.625  0.250  1.0
  Ba  Ba1  1  0.375  0.625  0.750  1.0
  Ba  Ba2  1  0.375  0.625  0.250  1.0
  Ba  Ba3  1  0.375  0.125  0.750  1.0
  Os  Os4  1  0.375  0.125  0.250  1.0
  Os  Os5  1  0.875  0.125  0.750  1.0
  Os  Os6  1  0.875  0.125  0.250  1.0
  Os  Os7  1  0.875  0.625  0.750  1.0
  O  O8  1  0.163  0.347  0.184  1.0
  O  O9  1  0.163  0.978  0.816  1.0
  O  O10  1  0.097  0.413  0.684  1.0
  O  O11  1  0.587  0.903  0.316  1.0
  O  O12  1  0.728  0.413  0.316  1.0
  O  O13  1  0.587  0.272  0.684  1.0
  O  O14  1  0.653  0.837  0.816  1.0
  O  O15  1  0.022  0.837  0.184  1.0
[/CIF]
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