The material structure described by Sr2MgGaSbO6 crystallizes in the orthorhombic Immm space group. Sr(1) is bonded in a 9-coordinate geometry to one Mg(1), four equivalent O(1), and four equivalent O(2) atoms. Mg(1) is bonded in a square co-planar geometry to two equivalent Sr(1) and four equivalent O(2) atoms. Ga(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form GaO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with six equivalent Ga(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Sr(1), one Ga(1), and one Sb(1) atom to form distorted OSr4GaSb octahedra that share corners with six equivalent O(1)Sr4GaSb octahedra, corners with eight equivalent O(2)Sr2MgGaSb trigonal bipyramids, edges with four equivalent O(1)Sr4GaSb octahedra, and edges with eight equivalent O(2)Sr2MgGaSb trigonal bipyramids. The corner-sharing octahedral tilt angles range from 0-26°. In the second O site, O(2) is bonded to two equivalent Sr(1), one Mg(1), one Ga(1), and one Sb(1) atom to form distorted OSr2MgGaSb trigonal bipyramids that share corners with four equivalent O(1)Sr4GaSb octahedra, corners with three equivalent O(2)Sr2MgGaSb trigonal bipyramids, edges with four equivalent O(1)Sr4GaSb octahedra, edges with three equivalent O(2)Sr2MgGaSb trigonal bipyramids, and faces with two equivalent O(2)Sr2MgGaSb trigonal bipyramids. The corner-sharing octahedral tilt angles range from 45-51°. is represented by the CIF card [CIF]
data_Sr2MgGaSbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.766
_cell_length_b   6.353
_cell_length_c   6.353
_cell_angle_alpha   55.232
_cell_angle_beta   63.011
_cell_angle_gamma   63.011
_symmetry_Int_Tables_number   1
_cell_volume   164.190
_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  0.183  0.317  0.317  1.0
  Sr  Sr1  1  0.817  0.683  0.683  1.0
  Mg  Mg2  1  0.500  0.000  0.000  1.0
  Ga  Ga3  1  0.000  0.000  0.000  1.0
  Sb  Sb4  1  0.500  0.500  0.500  1.0
  O  O5  1  0.253  0.747  0.747  1.0
  O  O6  1  0.239  0.772  0.228  1.0
  O  O7  1  0.761  0.228  0.772  1.0
  O  O8  1  0.239  0.228  0.772  1.0
  O  O9  1  0.747  0.253  0.253  1.0
  O  O10  1  0.761  0.772  0.228  1.0
[/CIF]
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The material structure described by Sr2MgGaSbO6 crystallizes in the orthorhombic Immm space group. Sr(1) is bonded in a 9-coordinate geometry to one Mg(1), four equivalent O(1), and four equivalent O(2) atoms. Mg(1) is bonded in a square co-planar geometry to two equivalent Sr(1) and four equivalent O(2) atoms. Ga(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form GaO6 octahedra that share corners with six equivalent Sb(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. Sb(1) is bonded to two equivalent O(1) and four equivalent O(2) atoms to form SbO6 octahedra that share corners with six equivalent Ga(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 0-3°. There are two inequivalent O sites. In the first O site, O(1) is bonded to four equivalent Sr(1), one Ga(1), and one Sb(1) atom to form distorted OSr4GaSb octahedra that share corners with six equivalent O(1)Sr4GaSb octahedra, corners with eight equivalent O(2)Sr2MgGaSb trigonal bipyramids, edges with four equivalent O(1)Sr4GaSb octahedra, and edges with eight equivalent O(2)Sr2MgGaSb trigonal bipyramids. The corner-sharing octahedral tilt angles range from 0-26°. In the second O site, O(2) is bonded to two equivalent Sr(1), one Mg(1), one Ga(1), and one Sb(1) atom to form distorted OSr2MgGaSb trigonal bipyramids that share corners with four equivalent O(1)Sr4GaSb octahedra, corners with three equivalent O(2)Sr2MgGaSb trigonal bipyramids, edges with four equivalent O(1)Sr4GaSb octahedra, edges with three equivalent O(2)Sr2MgGaSb trigonal bipyramids, and faces with two equivalent O(2)Sr2MgGaSb trigonal bipyramids. The corner-sharing octahedral tilt angles range from 45-51°. is represented by the CIF card [CIF]
data_Sr2MgGaSbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.766
_cell_length_b   6.353
_cell_length_c   6.353
_cell_angle_alpha   55.232
_cell_angle_beta   63.011
_cell_angle_gamma   63.011
_symmetry_Int_Tables_number   1
_cell_volume   164.190
_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  0.183  0.317  0.317  1.0
  Sr  Sr1  1  0.817  0.683  0.683  1.0
  Mg  Mg2  1  0.500  0.000  0.000  1.0
  Ga  Ga3  1  0.000  0.000  0.000  1.0
  Sb  Sb4  1  0.500  0.500  0.500  1.0
  O  O5  1  0.253  0.747  0.747  1.0
  O  O6  1  0.239  0.772  0.228  1.0
  O  O7  1  0.761  0.228  0.772  1.0
  O  O8  1  0.239  0.228  0.772  1.0
  O  O9  1  0.747  0.253  0.253  1.0
  O  O10  1  0.761  0.772  0.228  1.0
[/CIF]
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