The compound described by SrCa(RuO3)2 is Orthorhombic Perovskite-derived structured and crystallizes in the orthorhombic Pmc2_1 space group. Sr(1) is bonded in a 10-coordinate geometry to two equivalent O(2), four equivalent O(1), and four equivalent O(3) atoms. Ca(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(4), and four equivalent O(2) atoms. Ru(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form corner-sharing RuO6 octahedra. The corner-sharing octahedral tilt angles range from 21-29°. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(1), one Ca(1), and two equivalent Ru(1) atoms to form distorted OSr2CaRu2 trigonal bipyramids that share corners with three equivalent O(1)Sr2CaRu2 trigonal bipyramids, edges with two equivalent O(4)Ca2Ru2 tetrahedra, and edges with three equivalent O(1)Sr2CaRu2 trigonal bipyramids. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Ca(1), and two equivalent Ru(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to four equivalent Sr(1) and two equivalent Ru(1) atoms. In the fourth O site, O(4) is bonded to two equivalent Ca(1) and two equivalent Ru(1) atoms to form distorted OCa2Ru2 tetrahedra that share corners with two equivalent O(4)Ca2Ru2 tetrahedra and edges with four equivalent O(1)Sr2CaRu2 trigonal bipyramids. is represented by the CIF file [CIF]
data_SrCa(RuO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.530
_cell_length_b   5.607
_cell_length_c   7.856
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   243.567
_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  0.259  0.539  0.000  1.0
  Sr  Sr1  1  0.741  0.039  0.000  1.0
  Ca  Ca2  1  0.242  0.450  0.500  1.0
  Ca  Ca3  1  0.758  0.950  0.500  1.0
  Ru  Ru4  1  0.749  0.499  0.745  1.0
  Ru  Ru5  1  0.251  0.999  0.255  1.0
  Ru  Ru6  1  0.749  0.499  0.255  1.0
  Ru  Ru7  1  0.251  0.999  0.745  1.0
  O  O8  1  0.545  0.793  0.781  1.0
  O  O9  1  0.455  0.293  0.219  1.0
  O  O10  1  0.954  0.205  0.299  1.0
  O  O11  1  0.046  0.705  0.701  1.0
  O  O12  1  0.954  0.205  0.701  1.0
  O  O13  1  0.046  0.705  0.299  1.0
  O  O14  1  0.545  0.793  0.219  1.0
  O  O15  1  0.455  0.293  0.781  1.0
  O  O16  1  0.183  0.992  0.000  1.0
  O  O17  1  0.817  0.492  0.000  1.0
  O  O18  1  0.339  0.025  0.500  1.0
  O  O19  1  0.661  0.525  0.500  1.0
[/CIF]
.
The compound described by SrCa(RuO3)2 is Orthorhombic Perovskite-derived structured and crystallizes in the orthorhombic Pmc2_1 space group. Sr(1) is bonded in a 10-coordinate geometry to two equivalent O(2), four equivalent O(1), and four equivalent O(3) atoms. Ca(1) is bonded in a 8-coordinate geometry to two equivalent O(1), two equivalent O(4), and four equivalent O(2) atoms. Ru(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms to form corner-sharing RuO6 octahedra. The corner-sharing octahedral tilt angles range from 21-29°. There are four inequivalent O sites. In the first O site, O(1) is bonded to two equivalent Sr(1), one Ca(1), and two equivalent Ru(1) atoms to form distorted OSr2CaRu2 trigonal bipyramids that share corners with three equivalent O(1)Sr2CaRu2 trigonal bipyramids, edges with two equivalent O(4)Ca2Ru2 tetrahedra, and edges with three equivalent O(1)Sr2CaRu2 trigonal bipyramids. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(1), two equivalent Ca(1), and two equivalent Ru(1) atoms. In the third O site, O(3) is bonded in a 4-coordinate geometry to four equivalent Sr(1) and two equivalent Ru(1) atoms. In the fourth O site, O(4) is bonded to two equivalent Ca(1) and two equivalent Ru(1) atoms to form distorted OCa2Ru2 tetrahedra that share corners with two equivalent O(4)Ca2Ru2 tetrahedra and edges with four equivalent O(1)Sr2CaRu2 trigonal bipyramids. is represented by the CIF file [CIF]
data_SrCa(RuO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.530
_cell_length_b   5.607
_cell_length_c   7.856
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   243.567
_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  0.259  0.539  0.000  1.0
  Sr  Sr1  1  0.741  0.039  0.000  1.0
  Ca  Ca2  1  0.242  0.450  0.500  1.0
  Ca  Ca3  1  0.758  0.950  0.500  1.0
  Ru  Ru4  1  0.749  0.499  0.745  1.0
  Ru  Ru5  1  0.251  0.999  0.255  1.0
  Ru  Ru6  1  0.749  0.499  0.255  1.0
  Ru  Ru7  1  0.251  0.999  0.745  1.0
  O  O8  1  0.545  0.793  0.781  1.0
  O  O9  1  0.455  0.293  0.219  1.0
  O  O10  1  0.954  0.205  0.299  1.0
  O  O11  1  0.046  0.705  0.701  1.0
  O  O12  1  0.954  0.205  0.701  1.0
  O  O13  1  0.046  0.705  0.299  1.0
  O  O14  1  0.545  0.793  0.219  1.0
  O  O15  1  0.455  0.293  0.781  1.0
  O  O16  1  0.183  0.992  0.000  1.0
  O  O17  1  0.817  0.492  0.000  1.0
  O  O18  1  0.339  0.025  0.500  1.0
  O  O19  1  0.661  0.525  0.500  1.0
[/CIF]
.