The crystal structure described by Sr4MgY2(RuO6)2 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(3), one O(4), one O(5), one O(6), and one O(8) atom. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(11), one O(12), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(9) atom. In the third Sr site, Sr(3) is bonded in a 8-coordinate geometry to one Mg(1), one O(1), one O(10), one O(2), one O(5), one O(7), one O(8), and one O(9) atom. In the fourth Sr site, Sr(4) is bonded in a 8-coordinate geometry to one O(10), one O(2), one O(6), one O(7), one O(8), one O(9), and two equivalent O(1) atoms. Mg(1) is bonded in a 4-coordinate geometry to one Sr(3), one O(1), one O(11), one O(2), one O(6), and one O(9) atom. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(10), one O(12), one O(2), one O(4), one O(5), and one O(7) atom to form YO6 octahedra that share corners with two equivalent Ru(1)O6 octahedra and corners with four equivalent Ru(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-34°. In the second Y site, Y(2) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(3), one O(6), one O(8), and one O(9) atom. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one O(11), one O(2), one O(4), one O(6), one O(8), and one O(9) atom to form RuO6 octahedra that share corners with two equivalent Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-34°. In the second Ru site, Ru(2) is bonded to one O(1), one O(10), one O(12), one O(3), one O(5), and one O(7) atom to form RuO6 octahedra that share corners with four equivalent Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-28°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Sr(3), two equivalent Sr(4), one Mg(1), one Y(2), and one Ru(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(3), one Sr(4), one Mg(1), one Y(1), and one Ru(1) atom. In the third O site, O(3) is bonded to one Sr(1), one Sr(2), one Y(2), and one Ru(2) atom to form a mixture of distorted edge and corner-sharing OSr2YRu tetrahedra. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Sr(1), one Sr(2), one Y(1), and one Ru(1) atom. In the fifth O site, O(5) is bonded to one Sr(1), one Sr(2), one Sr(3), one Y(1), and one Ru(2) atom to form distorted OSr3YRu square pyramids that share corners with three equivalent O(3)Sr2YRu tetrahedra, corners with two equivalent O(7)Sr3YRu trigonal bipyramids,  an edgeedge with one O(7)Sr3YRu trigonal bipyramid, and edges with two equivalent O(10)Sr3YRu trigonal bipyramids. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(4), one Mg(1), one Y(2), and one Ru(1) atom. In the seventh O site, O(7) is bonded to one Sr(2), one Sr(3), one Sr(4), one Y(1), and one Ru(2) atom to form distorted OSr3YRu trigonal bipyramids that share corners with two equivalent O(5)Sr3YRu square pyramids,  an edgeedge with one O(5)Sr3YRu square pyramid,  an edgeedge with one O(3)Sr2YRu tetrahedra, and edges with two equivalent O(10)Sr3YRu trigonal bipyramids. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), one Sr(4), one Y(2), and one Ru(1) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Sr(2), one Sr(3), one Sr(4), one Mg(1), one Y(2), and one Ru(1) atom. In the tenth O site, O(10) is bonded to one Sr(1), one Sr(3), one Sr(4), one Y(1), and one Ru(2) atom to form distorted OSr3YRu trigonal bipyramids that share edges with two equivalent O(5)Sr3YRu square pyramids,  an edgeedge with one O(3)Sr2YRu tetrahedra, and edges with two equivalent O(7)Sr3YRu trigonal bipyramids. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), one Y(2), and one Ru(1) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Y(1), and one Ru(2) atom. is represented by the CIF card [CIF]
data_Sr4Y2Mg(RuO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.814
_cell_length_b   6.117
_cell_length_c   8.365
_cell_angle_alpha   87.339
_cell_angle_beta   92.172
_cell_angle_gamma   92.072
_symmetry_Int_Tables_number   1
_cell_volume   296.785
_cell_formula_units_Z   1
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  0.512  0.553  0.265  1.0
  Sr  Sr1  1  0.993  0.075  0.258  1.0
  Sr  Sr2  1  0.048  0.880  0.695  1.0
  Sr  Sr3  1  0.436  0.437  0.756  1.0
  Y  Y4  1  0.516  0.998  0.496  1.0
  Y  Y5  1  0.983  0.575  0.023  1.0
  Mg  Mg6  1  0.864  0.192  0.872  1.0
  Ru  Ru7  1  0.478  0.010  0.003  1.0
  Ru  Ru8  1  0.005  0.483  0.497  1.0
  O  O9  1  0.925  0.485  0.749  1.0
  O  O10  1  0.600  0.043  0.764  1.0
  O  O11  1  0.084  0.488  0.265  1.0
  O  O12  1  0.413  0.978  0.232  1.0
  O  O13  1  0.809  0.765  0.457  1.0
  O  O14  1  0.684  0.309  0.041  1.0
  O  O15  1  0.204  0.209  0.534  1.0
  O  O16  1  0.309  0.730  0.947  1.0
  O  O17  1  0.187  0.179  0.948  1.0
  O  O18  1  0.292  0.684  0.535  1.0
  O  O19  1  0.779  0.855  0.043  1.0
  O  O20  1  0.734  0.291  0.450  1.0
[/CIF]
.
The crystal structure described by Sr4MgY2(RuO6)2 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P1 space group. There are four inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to one O(10), one O(11), one O(12), one O(3), one O(4), one O(5), one O(6), and one O(8) atom. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to one O(11), one O(12), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(9) atom. In the third Sr site, Sr(3) is bonded in a 8-coordinate geometry to one Mg(1), one O(1), one O(10), one O(2), one O(5), one O(7), one O(8), and one O(9) atom. In the fourth Sr site, Sr(4) is bonded in a 8-coordinate geometry to one O(10), one O(2), one O(6), one O(7), one O(8), one O(9), and two equivalent O(1) atoms. Mg(1) is bonded in a 4-coordinate geometry to one Sr(3), one O(1), one O(11), one O(2), one O(6), and one O(9) atom. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(10), one O(12), one O(2), one O(4), one O(5), and one O(7) atom to form YO6 octahedra that share corners with two equivalent Ru(1)O6 octahedra and corners with four equivalent Ru(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-34°. In the second Y site, Y(2) is bonded in a 5-coordinate geometry to one O(1), one O(11), one O(3), one O(6), one O(8), and one O(9) atom. There are two inequivalent Ru sites. In the first Ru site, Ru(1) is bonded to one O(11), one O(2), one O(4), one O(6), one O(8), and one O(9) atom to form RuO6 octahedra that share corners with two equivalent Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 27-34°. In the second Ru site, Ru(2) is bonded to one O(1), one O(10), one O(12), one O(3), one O(5), and one O(7) atom to form RuO6 octahedra that share corners with four equivalent Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 24-28°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 6-coordinate geometry to one Sr(3), two equivalent Sr(4), one Mg(1), one Y(2), and one Ru(2) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to one Sr(3), one Sr(4), one Mg(1), one Y(1), and one Ru(1) atom. In the third O site, O(3) is bonded to one Sr(1), one Sr(2), one Y(2), and one Ru(2) atom to form a mixture of distorted edge and corner-sharing OSr2YRu tetrahedra. In the fourth O site, O(4) is bonded in a distorted see-saw-like geometry to one Sr(1), one Sr(2), one Y(1), and one Ru(1) atom. In the fifth O site, O(5) is bonded to one Sr(1), one Sr(2), one Sr(3), one Y(1), and one Ru(2) atom to form distorted OSr3YRu square pyramids that share corners with three equivalent O(3)Sr2YRu tetrahedra, corners with two equivalent O(7)Sr3YRu trigonal bipyramids,  an edgeedge with one O(7)Sr3YRu trigonal bipyramid, and edges with two equivalent O(10)Sr3YRu trigonal bipyramids. In the sixth O site, O(6) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(4), one Mg(1), one Y(2), and one Ru(1) atom. In the seventh O site, O(7) is bonded to one Sr(2), one Sr(3), one Sr(4), one Y(1), and one Ru(2) atom to form distorted OSr3YRu trigonal bipyramids that share corners with two equivalent O(5)Sr3YRu square pyramids,  an edgeedge with one O(5)Sr3YRu square pyramid,  an edgeedge with one O(3)Sr2YRu tetrahedra, and edges with two equivalent O(10)Sr3YRu trigonal bipyramids. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), one Sr(4), one Y(2), and one Ru(1) atom. In the ninth O site, O(9) is bonded in a 6-coordinate geometry to one Sr(2), one Sr(3), one Sr(4), one Mg(1), one Y(2), and one Ru(1) atom. In the tenth O site, O(10) is bonded to one Sr(1), one Sr(3), one Sr(4), one Y(1), and one Ru(2) atom to form distorted OSr3YRu trigonal bipyramids that share edges with two equivalent O(5)Sr3YRu square pyramids,  an edgeedge with one O(3)Sr2YRu tetrahedra, and edges with two equivalent O(7)Sr3YRu trigonal bipyramids. In the eleventh O site, O(11) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), one Y(2), and one Ru(1) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Y(1), and one Ru(2) atom. is represented by the CIF card [CIF]
data_Sr4Y2Mg(RuO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.814
_cell_length_b   6.117
_cell_length_c   8.365
_cell_angle_alpha   87.339
_cell_angle_beta   92.172
_cell_angle_gamma   92.072
_symmetry_Int_Tables_number   1
_cell_volume   296.785
_cell_formula_units_Z   1
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  0.512  0.553  0.265  1.0
  Sr  Sr1  1  0.993  0.075  0.258  1.0
  Sr  Sr2  1  0.048  0.880  0.695  1.0
  Sr  Sr3  1  0.436  0.437  0.756  1.0
  Y  Y4  1  0.516  0.998  0.496  1.0
  Y  Y5  1  0.983  0.575  0.023  1.0
  Mg  Mg6  1  0.864  0.192  0.872  1.0
  Ru  Ru7  1  0.478  0.010  0.003  1.0
  Ru  Ru8  1  0.005  0.483  0.497  1.0
  O  O9  1  0.925  0.485  0.749  1.0
  O  O10  1  0.600  0.043  0.764  1.0
  O  O11  1  0.084  0.488  0.265  1.0
  O  O12  1  0.413  0.978  0.232  1.0
  O  O13  1  0.809  0.765  0.457  1.0
  O  O14  1  0.684  0.309  0.041  1.0
  O  O15  1  0.204  0.209  0.534  1.0
  O  O16  1  0.309  0.730  0.947  1.0
  O  O17  1  0.187  0.179  0.948  1.0
  O  O18  1  0.292  0.684  0.535  1.0
  O  O19  1  0.779  0.855  0.043  1.0
  O  O20  1  0.734  0.291  0.450  1.0
[/CIF]
.