The material described by MgCrPtO2 crystallizes in the monoclinic Cm space group. Mg(1) is bonded in a 6-coordinate geometry to three equivalent Pt(1) and three equivalent O(1) atoms. Cr(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form edge-sharing CrO6 octahedra. Pt(1) is bonded in a 4-coordinate geometry to three equivalent Mg(1) and one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Mg(1) and three equivalent Cr(1) atoms to form OMg3Cr3 octahedra that share corners with three equivalent O(2)Cr3Pt tetrahedra, edges with six equivalent O(1)Mg3Cr3 octahedra, and edges with three equivalent O(2)Cr3Pt tetrahedra. In the second O site, O(2) is bonded to three equivalent Cr(1) and one Pt(1) atom to form distorted OCr3Pt tetrahedra that share corners with three equivalent O(1)Mg3Cr3 octahedra, corners with six equivalent O(2)Cr3Pt tetrahedra, and edges with three equivalent O(1)Mg3Cr3 octahedra. The corner-sharing octahedral tilt angles are 8°. is represented by the CIF file [CIF]
data_MgCrPtO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.964
_cell_length_b   8.309
_cell_length_c   2.964
_cell_angle_alpha   100.314
_cell_angle_beta   59.991
_cell_angle_gamma   100.314
_symmetry_Int_Tables_number   1
_cell_volume   61.843
_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  0.736  0.214  0.736  1.0
  Cr  Cr1  1  0.514  0.541  0.514  1.0
  Pt  Pt2  1  0.987  0.966  0.987  1.0
  O  O3  1  0.128  0.384  0.128  1.0
  O  O4  1  0.885  0.655  0.885  1.0
[/CIF]
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The material described by MgCrPtO2 crystallizes in the monoclinic Cm space group. Mg(1) is bonded in a 6-coordinate geometry to three equivalent Pt(1) and three equivalent O(1) atoms. Cr(1) is bonded to three equivalent O(1) and three equivalent O(2) atoms to form edge-sharing CrO6 octahedra. Pt(1) is bonded in a 4-coordinate geometry to three equivalent Mg(1) and one O(2) atom. There are two inequivalent O sites. In the first O site, O(1) is bonded to three equivalent Mg(1) and three equivalent Cr(1) atoms to form OMg3Cr3 octahedra that share corners with three equivalent O(2)Cr3Pt tetrahedra, edges with six equivalent O(1)Mg3Cr3 octahedra, and edges with three equivalent O(2)Cr3Pt tetrahedra. In the second O site, O(2) is bonded to three equivalent Cr(1) and one Pt(1) atom to form distorted OCr3Pt tetrahedra that share corners with three equivalent O(1)Mg3Cr3 octahedra, corners with six equivalent O(2)Cr3Pt tetrahedra, and edges with three equivalent O(1)Mg3Cr3 octahedra. The corner-sharing octahedral tilt angles are 8°. is represented by the CIF file [CIF]
data_MgCrPtO2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.964
_cell_length_b   8.309
_cell_length_c   2.964
_cell_angle_alpha   100.314
_cell_angle_beta   59.991
_cell_angle_gamma   100.314
_symmetry_Int_Tables_number   1
_cell_volume   61.843
_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  0.736  0.214  0.736  1.0
  Cr  Cr1  1  0.514  0.541  0.514  1.0
  Pt  Pt2  1  0.987  0.966  0.987  1.0
  O  O3  1  0.128  0.384  0.128  1.0
  O  O4  1  0.885  0.655  0.885  1.0
[/CIF]
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