The crystal structure described by Sr4MgTb2(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 6-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(5), one O(7), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one O(1), one O(10), 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 O(11), one O(12), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the fourth Sr site, Sr(4) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(12), one O(2), one O(3), one O(4), one O(7), and one O(8) atom. Mg(1) is bonded to one O(10), one O(2), one O(4), one O(6), and one O(9) atom to form distorted MgO5 trigonal bipyramids that share  a cornercorner with one Tb(1)O6 octahedra,  a cornercorner with one Tb(2)O6 octahedra,  a cornercorner with one Ru(1)O6 octahedra, edges with two equivalent Ru(2)O6 octahedra, and  a faceface with one Tb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-63°. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to one O(1), one O(11), one O(3), one O(5), one O(7), and one O(9) atom to form distorted TbO6 octahedra that share corners with two equivalent Ru(2)O6 octahedra, corners with four equivalent Ru(1)O6 octahedra, and  a cornercorner with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 14-44°. In the second Tb site, Tb(2) is bonded to one O(10), one O(12), one O(2), one O(4), one O(6), and one O(8) atom to form distorted TbO6 octahedra that share corners with two equivalent Ru(1)O6 octahedra, corners with four equivalent Ru(2)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and  a faceface with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 21-47°. There are two inequivalent Ru sites. In the first Ru site, Ru(1) 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 two equivalent Tb(2)O6 octahedra, corners with four equivalent Tb(1)O6 octahedra, and  a cornercorner with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 14-31°. In the second Ru site, Ru(2) 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 Tb(1)O6 octahedra, corners with four equivalent Tb(2)O6 octahedra, and edges with two equivalent Mg(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 21-47°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Sr(4), one Tb(1), and one Ru(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(4), one Mg(1), one Tb(2), and one Ru(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), one Sr(4), one Tb(1), and one Ru(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(3), one Sr(4), one Mg(1), one Tb(2), and one Ru(2) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Tb(1), and one Ru(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(2), one Sr(3), one Mg(1), one Tb(2), and one Ru(2) atom. In the seventh O site, O(7) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Tb(1), and one Ru(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Tb(2), and one Ru(2) atom. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), one Tb(1), and one Ru(2) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), one Tb(2), and one Ru(1) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Tb(1), and one Ru(2) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Tb(2), and one Ru(1) atom. is represented by the CIF card [CIF]
data_Sr4Tb2Mg(RuO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.746
_cell_length_b   6.075
_cell_length_c   8.618
_cell_angle_alpha   85.682
_cell_angle_beta   90.987
_cell_angle_gamma   89.822
_symmetry_Int_Tables_number   1
_cell_volume   299.936
_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  0.003  0.632  0.831  1.0
  Sr  Sr1  1  0.498  0.081  0.782  1.0
  Sr  Sr2  1  0.482  0.011  0.238  1.0
  Sr  Sr3  1  0.017  0.457  0.241  1.0
  Tb  Tb4  1  0.502  0.525  0.016  1.0
  Tb  Tb5  1  1.000  0.919  0.477  1.0
  Mg  Mg6  1  0.027  0.321  0.616  1.0
  Ru  Ru7  1  0.992  0.035  0.001  1.0
  Ru  Ru8  1  0.504  0.451  0.489  1.0
  O  O9  1  0.785  0.304  0.948  1.0
  O  O10  1  0.825  0.601  0.553  1.0
  O  O11  1  0.216  0.773  0.047  1.0
  O  O12  1  0.235  0.237  0.446  1.0
  O  O13  1  0.719  0.827  0.976  1.0
  O  O14  1  0.712  0.180  0.532  1.0
  O  O15  1  0.252  0.247  0.032  1.0
  O  O16  1  0.309  0.713  0.427  1.0
  O  O17  1  0.348  0.460  0.708  1.0
  O  O18  1  0.060  0.026  0.751  1.0
  O  O19  1  0.589  0.455  0.259  1.0
  O  O20  1  0.924  0.015  0.231  1.0
[/CIF]
.
The crystal structure described by Sr4MgTb2(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 6-coordinate geometry to one O(1), one O(10), one O(2), one O(3), one O(5), one O(7), and one O(9) atom. In the second Sr site, Sr(2) is bonded in a 6-coordinate geometry to one O(1), one O(10), 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 O(11), one O(12), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the fourth Sr site, Sr(4) is bonded in a 8-coordinate geometry to one O(1), one O(11), one O(12), one O(2), one O(3), one O(4), one O(7), and one O(8) atom. Mg(1) is bonded to one O(10), one O(2), one O(4), one O(6), and one O(9) atom to form distorted MgO5 trigonal bipyramids that share  a cornercorner with one Tb(1)O6 octahedra,  a cornercorner with one Tb(2)O6 octahedra,  a cornercorner with one Ru(1)O6 octahedra, edges with two equivalent Ru(2)O6 octahedra, and  a faceface with one Tb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 48-63°. There are two inequivalent Tb sites. In the first Tb site, Tb(1) is bonded to one O(1), one O(11), one O(3), one O(5), one O(7), and one O(9) atom to form distorted TbO6 octahedra that share corners with two equivalent Ru(2)O6 octahedra, corners with four equivalent Ru(1)O6 octahedra, and  a cornercorner with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 14-44°. In the second Tb site, Tb(2) is bonded to one O(10), one O(12), one O(2), one O(4), one O(6), and one O(8) atom to form distorted TbO6 octahedra that share corners with two equivalent Ru(1)O6 octahedra, corners with four equivalent Ru(2)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and  a faceface with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 21-47°. There are two inequivalent Ru sites. In the first Ru site, Ru(1) 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 two equivalent Tb(2)O6 octahedra, corners with four equivalent Tb(1)O6 octahedra, and  a cornercorner with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 14-31°. In the second Ru site, Ru(2) 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 Tb(1)O6 octahedra, corners with four equivalent Tb(2)O6 octahedra, and edges with two equivalent Mg(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 21-47°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(2), one Sr(4), one Tb(1), and one Ru(1) atom. In the second O site, O(2) is bonded in a 4-coordinate geometry to one Sr(1), one Sr(4), one Mg(1), one Tb(2), and one Ru(2) atom. In the third O site, O(3) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(3), one Sr(4), one Tb(1), and one Ru(1) atom. In the fourth O site, O(4) is bonded in a 5-coordinate geometry to one Sr(3), one Sr(4), one Mg(1), one Tb(2), and one Ru(2) atom. In the fifth O site, O(5) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Tb(1), and one Ru(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Sr(2), one Sr(3), one Mg(1), one Tb(2), and one Ru(2) atom. In the seventh O site, O(7) is bonded in a 6-coordinate geometry to one Sr(1), one Sr(2), one Sr(3), one Sr(4), one Tb(1), and one Ru(1) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Tb(2), and one Ru(2) atom. In the ninth O site, O(9) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), one Tb(1), and one Ru(2) atom. In the tenth O site, O(10) is bonded in a 5-coordinate geometry to one Sr(1), one Sr(2), one Mg(1), one Tb(2), and one Ru(1) atom. In the eleventh O site, O(11) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Tb(1), and one Ru(2) atom. In the twelfth O site, O(12) is bonded in a 4-coordinate geometry to one Sr(3), one Sr(4), one Tb(2), and one Ru(1) atom. is represented by the CIF card [CIF]
data_Sr4Tb2Mg(RuO6)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.746
_cell_length_b   6.075
_cell_length_c   8.618
_cell_angle_alpha   85.682
_cell_angle_beta   90.987
_cell_angle_gamma   89.822
_symmetry_Int_Tables_number   1
_cell_volume   299.936
_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  0.003  0.632  0.831  1.0
  Sr  Sr1  1  0.498  0.081  0.782  1.0
  Sr  Sr2  1  0.482  0.011  0.238  1.0
  Sr  Sr3  1  0.017  0.457  0.241  1.0
  Tb  Tb4  1  0.502  0.525  0.016  1.0
  Tb  Tb5  1  1.000  0.919  0.477  1.0
  Mg  Mg6  1  0.027  0.321  0.616  1.0
  Ru  Ru7  1  0.992  0.035  0.001  1.0
  Ru  Ru8  1  0.504  0.451  0.489  1.0
  O  O9  1  0.785  0.304  0.948  1.0
  O  O10  1  0.825  0.601  0.553  1.0
  O  O11  1  0.216  0.773  0.047  1.0
  O  O12  1  0.235  0.237  0.446  1.0
  O  O13  1  0.719  0.827  0.976  1.0
  O  O14  1  0.712  0.180  0.532  1.0
  O  O15  1  0.252  0.247  0.032  1.0
  O  O16  1  0.309  0.713  0.427  1.0
  O  O17  1  0.348  0.460  0.708  1.0
  O  O18  1  0.060  0.026  0.751  1.0
  O  O19  1  0.589  0.455  0.259  1.0
  O  O20  1  0.924  0.015  0.231  1.0
[/CIF]
.