The crystal structure described by Mg(CuO)2 crystallizes in the triclinic P-1 space group. Mg(1) is bonded in a distorted square co-planar geometry to four equivalent O(1) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a linear geometry to two equivalent O(1) atoms. In the second Cu site, Cu(2) is bonded in a linear geometry to two equivalent O(1) atoms. O(1) is bonded in a rectangular see-saw-like geometry to two equivalent Mg(1), one Cu(1), and one Cu(2) atom. is represented by the CIF file [CIF]
data_Mg(CuO)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.097
_cell_length_b   4.527
_cell_length_c   6.179
_cell_angle_alpha   98.500
_cell_angle_beta   112.386
_cell_angle_gamma   91.824
_symmetry_Int_Tables_number   1
_cell_volume   78.848
_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  0.000  0.500  0.000  1.0
  Cu  Cu1  1  0.000  0.500  0.500  1.0
  Cu  Cu2  1  0.500  0.000  0.000  1.0
  O  O3  1  0.635  0.370  0.187  1.0
  O  O4  1  0.365  0.630  0.813  1.0
[/CIF]
.
The crystal structure described by Mg(CuO)2 crystallizes in the triclinic P-1 space group. Mg(1) is bonded in a distorted square co-planar geometry to four equivalent O(1) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a linear geometry to two equivalent O(1) atoms. In the second Cu site, Cu(2) is bonded in a linear geometry to two equivalent O(1) atoms. O(1) is bonded in a rectangular see-saw-like geometry to two equivalent Mg(1), one Cu(1), and one Cu(2) atom. is represented by the CIF file [CIF]
data_Mg(CuO)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.097
_cell_length_b   4.527
_cell_length_c   6.179
_cell_angle_alpha   98.500
_cell_angle_beta   112.386
_cell_angle_gamma   91.824
_symmetry_Int_Tables_number   1
_cell_volume   78.848
_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  0.000  0.500  0.000  1.0
  Cu  Cu1  1  0.000  0.500  0.500  1.0
  Cu  Cu2  1  0.500  0.000  0.000  1.0
  O  O3  1  0.635  0.370  0.187  1.0
  O  O4  1  0.365  0.630  0.813  1.0
[/CIF]
.