The structure described by MgScNi2SbO6 crystallizes in the trigonal R3 space group. Mg(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form MgO6 octahedra that share corners with three equivalent Ni(1)O6 octahedra, edges with three equivalent Sc(1)O6 octahedra, and  a faceface with one Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles are 45°. Sc(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form ScO6 octahedra that share corners with three equivalent Ni(1)O6 octahedra, edges with three equivalent Mg(1)O6 octahedra, and  a faceface with one Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles are 48°. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form NiO6 octahedra that share corners with three equivalent Mg(1)O6 octahedra, corners with three equivalent Sc(1)O6 octahedra,  a faceface with one Mg(1)O6 octahedra, and  a faceface with one Sc(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-48°. In the second Ni site, Ni(2) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. Sb(1) is bonded in a 3-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Mg(1), one Sc(1), one Ni(1), one Ni(2), and one Sb(1) atom. In the second O site, O(2) is bonded to one Mg(1), one Sc(1), one Ni(1), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing OMgScNiSb trigonal pyramids. is represented by the CIF card [CIF]
data_MgScNi2SbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.366
_cell_length_b   5.366
_cell_length_c   6.145
_cell_angle_alpha   64.104
_cell_angle_beta   64.107
_cell_angle_gamma   59.999
_symmetry_Int_Tables_number   1
_cell_volume   132.313
_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
  Mg  Mg0  1  0.167  0.167  0.498  1.0
  Sc  Sc1  1  0.812  0.812  0.565  1.0
  Ni  Ni2  1  0.989  0.989  0.032  1.0
  Ni  Ni3  1  0.554  0.554  0.338  1.0
  Sb  Sb4  1  0.353  0.353  0.939  1.0
  O  O5  1  0.199  0.907  0.296  1.0
  O  O6  1  0.907  0.598  0.296  1.0
  O  O7  1  0.598  0.199  0.296  1.0
  O  O8  1  0.774  0.085  0.755  1.0
  O  O9  1  0.085  0.386  0.755  1.0
  O  O10  1  0.386  0.774  0.755  1.0
[/CIF]
.
The structure described by MgScNi2SbO6 crystallizes in the trigonal R3 space group. Mg(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form MgO6 octahedra that share corners with three equivalent Ni(1)O6 octahedra, edges with three equivalent Sc(1)O6 octahedra, and  a faceface with one Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles are 45°. Sc(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form ScO6 octahedra that share corners with three equivalent Ni(1)O6 octahedra, edges with three equivalent Mg(1)O6 octahedra, and  a faceface with one Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles are 48°. There are two inequivalent Ni sites. In the first Ni site, Ni(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form NiO6 octahedra that share corners with three equivalent Mg(1)O6 octahedra, corners with three equivalent Sc(1)O6 octahedra,  a faceface with one Mg(1)O6 octahedra, and  a faceface with one Sc(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-48°. In the second Ni site, Ni(2) is bonded in a trigonal planar geometry to three equivalent O(1) atoms. Sb(1) is bonded in a 3-coordinate geometry to three equivalent O(1) and three equivalent O(2) atoms. There are two inequivalent O sites. In the first O site, O(1) is bonded in a 5-coordinate geometry to one Mg(1), one Sc(1), one Ni(1), one Ni(2), and one Sb(1) atom. In the second O site, O(2) is bonded to one Mg(1), one Sc(1), one Ni(1), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing OMgScNiSb trigonal pyramids. is represented by the CIF card [CIF]
data_MgScNi2SbO6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.366
_cell_length_b   5.366
_cell_length_c   6.145
_cell_angle_alpha   64.104
_cell_angle_beta   64.107
_cell_angle_gamma   59.999
_symmetry_Int_Tables_number   1
_cell_volume   132.313
_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
  Mg  Mg0  1  0.167  0.167  0.498  1.0
  Sc  Sc1  1  0.812  0.812  0.565  1.0
  Ni  Ni2  1  0.989  0.989  0.032  1.0
  Ni  Ni3  1  0.554  0.554  0.338  1.0
  Sb  Sb4  1  0.353  0.353  0.939  1.0
  O  O5  1  0.199  0.907  0.296  1.0
  O  O6  1  0.907  0.598  0.296  1.0
  O  O7  1  0.598  0.199  0.296  1.0
  O  O8  1  0.774  0.085  0.755  1.0
  O  O9  1  0.085  0.386  0.755  1.0
  O  O10  1  0.386  0.774  0.755  1.0
[/CIF]
.