The material structure described by Ba3SrRu2O9 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic C2/c space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 10-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), two equivalent O(5), and three equivalent O(3) atoms. In the second Ba site, Ba(2) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(4), and four equivalent O(5) atoms. Sr(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SrO6 octahedra that share corners with six equivalent Ru(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 13-20°. Ru(1) is bonded to one O(1), one O(2), one O(3), one O(4), and two equivalent O(5) atoms to form RuO6 octahedra that share corners with three equivalent Sr(1)O6 octahedra and  a faceface with one Ru(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 13-20°. There are five inequivalent O sites. In the first O site, O(3) is bonded in a 2-coordinate geometry to three equivalent Ba(1), one Sr(1), and one Ru(1) atom. In the second O site, O(4) is bonded to two equivalent Ba(1), two equivalent Ba(2), and two equivalent Ru(1) atoms to form distorted corner-sharing OBa4Ru2 octahedra. The corner-sharing octahedral tilt angles are 9°. In the third O site, O(5) is bonded in a 6-coordinate geometry to two equivalent Ba(1), two equivalent Ba(2), and two equivalent Ru(1) atoms. In the fourth O site, O(1) is bonded in a 5-coordinate geometry to one Ba(2), two equivalent Ba(1), one Sr(1), and one Ru(1) atom. In the fifth O site, O(2) is bonded in a 2-coordinate geometry to one Ba(2), two equivalent Ba(1), one Sr(1), and one Ru(1) atom. is represented by the CIF card [CIF]
data_Ba3SrRu2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.986
_cell_length_b   5.986
_cell_length_c   15.187
_cell_angle_alpha   89.134
_cell_angle_beta   89.134
_cell_angle_gamma   119.701
_symmetry_Int_Tables_number   1
_cell_volume   472.489
_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
  Ba  Ba0  1  0.346  0.676  0.896  1.0
  Ba  Ba1  1  0.324  0.654  0.604  1.0
  Ba  Ba2  1  0.654  0.324  0.104  1.0
  Ba  Ba3  1  0.676  0.346  0.396  1.0
  Ba  Ba4  1  0.995  0.005  0.750  1.0
  Ba  Ba5  1  0.005  0.995  0.250  1.0
  Sr  Sr6  1  0.000  0.000  0.500  1.0
  Sr  Sr7  1  0.000  0.000  0.000  1.0
  Ru  Ru8  1  0.688  0.353  0.840  1.0
  Ru  Ru9  1  0.647  0.312  0.660  1.0
  Ru  Ru10  1  0.353  0.688  0.340  1.0
  Ru  Ru11  1  0.312  0.647  0.160  1.0
  O  O12  1  0.866  0.679  0.892  1.0
  O  O13  1  0.321  0.134  0.608  1.0
  O  O14  1  0.134  0.321  0.108  1.0
  O  O15  1  0.679  0.866  0.392  1.0
  O  O16  1  0.872  0.221  0.900  1.0
  O  O17  1  0.779  0.128  0.600  1.0
  O  O18  1  0.128  0.779  0.100  1.0
  O  O19  1  0.221  0.872  0.400  1.0
  O  O20  1  0.412  0.222  0.923  1.0
  O  O21  1  0.778  0.588  0.577  1.0
  O  O22  1  0.588  0.778  0.077  1.0
  O  O23  1  0.222  0.412  0.423  1.0
  O  O24  1  0.483  0.517  0.250  1.0
  O  O25  1  0.517  0.483  0.750  1.0
  O  O26  1  0.482  0.960  0.237  1.0
  O  O27  1  0.040  0.518  0.263  1.0
  O  O28  1  0.518  0.040  0.763  1.0
  O  O29  1  0.960  0.482  0.737  1.0
[/CIF]
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The material structure described by Ba3SrRu2O9 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic C2/c space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 10-coordinate geometry to one O(4), two equivalent O(1), two equivalent O(2), two equivalent O(5), and three equivalent O(3) atoms. In the second Ba site, Ba(2) is bonded in a 10-coordinate geometry to two equivalent O(1), two equivalent O(2), two equivalent O(4), and four equivalent O(5) atoms. Sr(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form SrO6 octahedra that share corners with six equivalent Ru(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 13-20°. Ru(1) is bonded to one O(1), one O(2), one O(3), one O(4), and two equivalent O(5) atoms to form RuO6 octahedra that share corners with three equivalent Sr(1)O6 octahedra and  a faceface with one Ru(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 13-20°. There are five inequivalent O sites. In the first O site, O(3) is bonded in a 2-coordinate geometry to three equivalent Ba(1), one Sr(1), and one Ru(1) atom. In the second O site, O(4) is bonded to two equivalent Ba(1), two equivalent Ba(2), and two equivalent Ru(1) atoms to form distorted corner-sharing OBa4Ru2 octahedra. The corner-sharing octahedral tilt angles are 9°. In the third O site, O(5) is bonded in a 6-coordinate geometry to two equivalent Ba(1), two equivalent Ba(2), and two equivalent Ru(1) atoms. In the fourth O site, O(1) is bonded in a 5-coordinate geometry to one Ba(2), two equivalent Ba(1), one Sr(1), and one Ru(1) atom. In the fifth O site, O(2) is bonded in a 2-coordinate geometry to one Ba(2), two equivalent Ba(1), one Sr(1), and one Ru(1) atom. is represented by the CIF card [CIF]
data_Ba3SrRu2O9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.986
_cell_length_b   5.986
_cell_length_c   15.187
_cell_angle_alpha   89.134
_cell_angle_beta   89.134
_cell_angle_gamma   119.701
_symmetry_Int_Tables_number   1
_cell_volume   472.489
_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
  Ba  Ba0  1  0.346  0.676  0.896  1.0
  Ba  Ba1  1  0.324  0.654  0.604  1.0
  Ba  Ba2  1  0.654  0.324  0.104  1.0
  Ba  Ba3  1  0.676  0.346  0.396  1.0
  Ba  Ba4  1  0.995  0.005  0.750  1.0
  Ba  Ba5  1  0.005  0.995  0.250  1.0
  Sr  Sr6  1  0.000  0.000  0.500  1.0
  Sr  Sr7  1  0.000  0.000  0.000  1.0
  Ru  Ru8  1  0.688  0.353  0.840  1.0
  Ru  Ru9  1  0.647  0.312  0.660  1.0
  Ru  Ru10  1  0.353  0.688  0.340  1.0
  Ru  Ru11  1  0.312  0.647  0.160  1.0
  O  O12  1  0.866  0.679  0.892  1.0
  O  O13  1  0.321  0.134  0.608  1.0
  O  O14  1  0.134  0.321  0.108  1.0
  O  O15  1  0.679  0.866  0.392  1.0
  O  O16  1  0.872  0.221  0.900  1.0
  O  O17  1  0.779  0.128  0.600  1.0
  O  O18  1  0.128  0.779  0.100  1.0
  O  O19  1  0.221  0.872  0.400  1.0
  O  O20  1  0.412  0.222  0.923  1.0
  O  O21  1  0.778  0.588  0.577  1.0
  O  O22  1  0.588  0.778  0.077  1.0
  O  O23  1  0.222  0.412  0.423  1.0
  O  O24  1  0.483  0.517  0.250  1.0
  O  O25  1  0.517  0.483  0.750  1.0
  O  O26  1  0.482  0.960  0.237  1.0
  O  O27  1  0.040  0.518  0.263  1.0
  O  O28  1  0.518  0.040  0.763  1.0
  O  O29  1  0.960  0.482  0.737  1.0
[/CIF]
.