The structure described by Sr2MgUO6 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic P2_1/c space group. Sr(1) is bonded in a 8-coordinate geometry to two equivalent O(3), three equivalent O(1), and three equivalent O(2) atoms. Mg(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with six equivalent U(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-26°. U(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form UO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-26°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to three equivalent Sr(1), one Mg(1), and one U(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to three equivalent Sr(1), one Mg(1), and one U(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Mg(1), and one U(1) atom. is represented by the CIF card [CIF]
data_Sr2MgUO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.876
_cell_length_b   5.851
_cell_length_c   10.097
_cell_angle_alpha   54.894
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   284.018
_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  0.032  0.261  0.748  1.0
  Sr  Sr1  1  0.532  0.739  0.752  1.0
  Sr  Sr2  1  0.468  0.261  0.248  1.0
  Sr  Sr3  1  0.968  0.739  0.252  1.0
  Mg  Mg4  1  0.500  0.500  0.500  1.0
  Mg  Mg5  1  0.000  0.500  0.000  1.0
  U  U6  1  0.000  0.000  0.500  1.0
  U  U7  1  0.500  0.000  0.000  1.0
  O  O8  1  0.721  0.259  0.456  1.0
  O  O9  1  0.785  0.680  0.540  1.0
  O  O10  1  0.279  0.741  0.544  1.0
  O  O11  1  0.981  0.832  0.747  1.0
  O  O12  1  0.481  0.168  0.753  1.0
  O  O13  1  0.779  0.259  0.956  1.0
  O  O14  1  0.285  0.320  0.960  1.0
  O  O15  1  0.715  0.680  0.040  1.0
  O  O16  1  0.221  0.741  0.044  1.0
  O  O17  1  0.519  0.832  0.247  1.0
  O  O18  1  0.019  0.168  0.253  1.0
  O  O19  1  0.215  0.320  0.460  1.0
[/CIF]
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The structure described by Sr2MgUO6 is Orthorhombic Perovskite-derived structured and crystallizes in the monoclinic P2_1/c space group. Sr(1) is bonded in a 8-coordinate geometry to two equivalent O(3), three equivalent O(1), and three equivalent O(2) atoms. Mg(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form MgO6 octahedra that share corners with six equivalent U(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-26°. U(1) is bonded to two equivalent O(1), two equivalent O(2), and two equivalent O(3) atoms to form UO6 octahedra that share corners with six equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 23-26°. There are three inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to three equivalent Sr(1), one Mg(1), and one U(1) atom. In the second O site, O(2) is bonded in a 5-coordinate geometry to three equivalent Sr(1), one Mg(1), and one U(1) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to two equivalent Sr(1), one Mg(1), and one U(1) atom. is represented by the CIF card [CIF]
data_Sr2MgUO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.876
_cell_length_b   5.851
_cell_length_c   10.097
_cell_angle_alpha   54.894
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   284.018
_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  0.032  0.261  0.748  1.0
  Sr  Sr1  1  0.532  0.739  0.752  1.0
  Sr  Sr2  1  0.468  0.261  0.248  1.0
  Sr  Sr3  1  0.968  0.739  0.252  1.0
  Mg  Mg4  1  0.500  0.500  0.500  1.0
  Mg  Mg5  1  0.000  0.500  0.000  1.0
  U  U6  1  0.000  0.000  0.500  1.0
  U  U7  1  0.500  0.000  0.000  1.0
  O  O8  1  0.721  0.259  0.456  1.0
  O  O9  1  0.785  0.680  0.540  1.0
  O  O10  1  0.279  0.741  0.544  1.0
  O  O11  1  0.981  0.832  0.747  1.0
  O  O12  1  0.481  0.168  0.753  1.0
  O  O13  1  0.779  0.259  0.956  1.0
  O  O14  1  0.285  0.320  0.960  1.0
  O  O15  1  0.715  0.680  0.040  1.0
  O  O16  1  0.221  0.741  0.044  1.0
  O  O17  1  0.519  0.832  0.247  1.0
  O  O18  1  0.019  0.168  0.253  1.0
  O  O19  1  0.215  0.320  0.460  1.0
[/CIF]
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