The material structure described by SrAs2O6 crystallizes in the hexagonal P6_3/mcm space group. Sr(1) is bonded to six equivalent O(1) atoms to form distorted SrO6 pentagonal pyramids that share corners with twelve equivalent As(1)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. As(1) is bonded to six equivalent O(1) atoms to form AsO6 octahedra that share corners with six equivalent Sr(1)O6 pentagonal pyramids and edges with three equivalent As(1)O6 octahedra. O(1) is bonded in a distorted trigonal planar geometry to one Sr(1) and two equivalent As(1) atoms. is represented by the CIF card [CIF]
data_Sr(AsO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.874
_cell_length_b   4.874
_cell_length_c   10.903
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   224.331
_cell_formula_units_Z   2
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  0.000  0.000  0.250  1.0
  Sr  Sr1  1  1.000  1.000  0.750  1.0
  As  As2  1  0.667  0.333  1.000  1.0
  As  As3  1  0.333  0.667  1.000  1.0
  As  As4  1  0.667  0.333  0.500  1.0
  As  As5  1  0.333  0.667  0.500  1.0
  O  O6  1  0.617  0.617  0.095  1.0
  O  O7  1  0.383  0.000  0.095  1.0
  O  O8  1  0.000  0.383  0.095  1.0
  O  O9  1  0.617  0.617  0.405  1.0
  O  O10  1  0.383  1.000  0.405  1.0
  O  O11  1  1.000  0.383  0.405  1.0
  O  O12  1  0.617  1.000  0.595  1.0
  O  O13  1  0.383  0.383  0.595  1.0
  O  O14  1  1.000  0.617  0.595  1.0
  O  O15  1  0.383  0.383  0.905  1.0
  O  O16  1  0.617  0.000  0.905  1.0
  O  O17  1  0.000  0.617  0.905  1.0
[/CIF]
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The material structure described by SrAs2O6 crystallizes in the hexagonal P6_3/mcm space group. Sr(1) is bonded to six equivalent O(1) atoms to form distorted SrO6 pentagonal pyramids that share corners with twelve equivalent As(1)O6 octahedra. The corner-sharing octahedral tilt angles are 53°. As(1) is bonded to six equivalent O(1) atoms to form AsO6 octahedra that share corners with six equivalent Sr(1)O6 pentagonal pyramids and edges with three equivalent As(1)O6 octahedra. O(1) is bonded in a distorted trigonal planar geometry to one Sr(1) and two equivalent As(1) atoms. is represented by the CIF card [CIF]
data_Sr(AsO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.874
_cell_length_b   4.874
_cell_length_c   10.903
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   224.331
_cell_formula_units_Z   2
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  0.000  0.000  0.250  1.0
  Sr  Sr1  1  1.000  1.000  0.750  1.0
  As  As2  1  0.667  0.333  1.000  1.0
  As  As3  1  0.333  0.667  1.000  1.0
  As  As4  1  0.667  0.333  0.500  1.0
  As  As5  1  0.333  0.667  0.500  1.0
  O  O6  1  0.617  0.617  0.095  1.0
  O  O7  1  0.383  0.000  0.095  1.0
  O  O8  1  0.000  0.383  0.095  1.0
  O  O9  1  0.617  0.617  0.405  1.0
  O  O10  1  0.383  1.000  0.405  1.0
  O  O11  1  1.000  0.383  0.405  1.0
  O  O12  1  0.617  1.000  0.595  1.0
  O  O13  1  0.383  0.383  0.595  1.0
  O  O14  1  1.000  0.617  0.595  1.0
  O  O15  1  0.383  0.383  0.905  1.0
  O  O16  1  0.617  0.000  0.905  1.0
  O  O17  1  0.000  0.617  0.905  1.0
[/CIF]
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