The material structure described by MgCu2(SbO3)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(11), one O(2), one O(3), one O(5), one O(8), and one O(9) atom to form distorted MgO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra, corners with two equivalent Sb(3)O6 octahedra, edges with two equivalent Sb(1)O6 octahedra, edges with two equivalent Sb(4)O6 octahedra, and faces with two equivalent Cu(2)O6 octahedra. The corner-sharing octahedral tilt angles are 48°. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(10), one O(12), one O(4), one O(6), and one O(7) atom to form CuO6 octahedra that share corners with four equivalent Sb(2)O6 octahedra, corners with four equivalent Sb(3)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, and  an edgeedge with one Sb(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. In the second Cu site, Cu(2) is bonded to one O(11), one O(2), one O(3), one O(5), one O(8), and one O(9) atom to form distorted CuO6 octahedra that share corners with four equivalent Sb(1)O6 octahedra, corners with four equivalent Sb(4)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra,  an edgeedge with one Sb(3)O6 octahedra, and faces with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-53°. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(10), one O(11), one O(12), one O(2), one O(3), and one O(9) atom to form SbO6 octahedra that share corners with four equivalent Cu(2)O6 octahedra, corners with four equivalent Sb(3)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra,  an edgeedge with one Sb(4)O6 octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-53°. In the second Sb site, Sb(2) is bonded to one O(1), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form SbO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with four equivalent Cu(1)O6 octahedra, corners with four equivalent Sb(4)O6 octahedra,  an edgeedge with one Cu(2)O6 octahedra, and  an edgeedge with one Sb(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-52°. In the third Sb site, Sb(3) is bonded to one O(1), one O(10), one O(11), one O(12), one O(2), and one O(7) atom to form SbO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with four equivalent Cu(1)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra,  an edgeedge with one Cu(2)O6 octahedra, and  an edgeedge with one Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-52°. In the fourth Sb site, Sb(4) is bonded to one O(3), one O(4), one O(5), one O(6), one O(8), and one O(9) atom to form SbO6 octahedra that share corners with four equivalent Cu(2)O6 octahedra, corners with four equivalent Sb(2)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-53°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Cu(1), one Sb(2), and one Sb(3) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Cu(2), one Sb(1), and one Sb(3) atom. In the third O site, O(3) is bonded to one Mg(1), one Cu(2), one Sb(1), and one Sb(4) atom to form a mixture of distorted edge and corner-sharing OMgCuSb2 trigonal pyramids. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Cu(1), one Sb(2), and one Sb(4) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Cu(2), one Sb(2), and one Sb(4) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Cu(1), one Sb(2), and one Sb(4) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Cu(1), one Sb(2), and one Sb(3) atom. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Cu(2), one Sb(2), and one Sb(4) atom. In the ninth O site, O(9) is bonded to one Mg(1), one Cu(2), one Sb(1), and one Sb(4) atom to form a mixture of distorted edge and corner-sharing OMgCuSb2 trigonal pyramids. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Cu(1), one Sb(1), and one Sb(3) atom. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Cu(2), one Sb(1), and one Sb(3) atom. In the twelfth O site, O(12) is bonded in a distorted T-shaped geometry to one Cu(1), one Sb(1), and one Sb(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgCu2(SbO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.051
_cell_length_b   4.837
_cell_length_c   10.597
_cell_angle_alpha   89.808
_cell_angle_beta   118.357
_cell_angle_gamma   90.338
_symmetry_Int_Tables_number   1
_cell_volume   227.833
_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  0.991  0.003  0.489  1.0
  Cu  Cu1  1  0.989  0.999  0.988  1.0
  Cu  Cu2  1  0.982  0.503  0.487  1.0
  Sb  Sb3  1  0.310  0.000  0.309  1.0
  Sb  Sb4  1  0.320  0.499  0.821  1.0
  Sb  Sb5  1  0.658  0.500  0.156  1.0
  Sb  Sb6  1  0.667  0.999  0.667  1.0
  O  O7  1  0.316  0.701  0.989  1.0
  O  O8  1  0.650  0.742  0.320  1.0
  O  O9  1  0.654  0.200  0.488  1.0
  O  O10  1  0.998  0.227  0.816  1.0
  O  O11  1  0.981  0.740  0.655  1.0
  O  O12  1  0.631  0.771  0.816  1.0
  O  O13  1  0.662  0.297  0.988  1.0
  O  O14  1  0.327  0.260  0.655  1.0
  O  O15  1  0.322  0.799  0.488  1.0
  O  O16  1  0.345  0.230  0.162  1.0
  O  O17  1  0.994  0.259  0.321  1.0
  O  O18  1  0.982  0.770  0.161  1.0
[/CIF]
.
The material structure described by MgCu2(SbO3)4 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(11), one O(2), one O(3), one O(5), one O(8), and one O(9) atom to form distorted MgO6 octahedra that share corners with two equivalent Sb(2)O6 octahedra, corners with two equivalent Sb(3)O6 octahedra, edges with two equivalent Sb(1)O6 octahedra, edges with two equivalent Sb(4)O6 octahedra, and faces with two equivalent Cu(2)O6 octahedra. The corner-sharing octahedral tilt angles are 48°. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to one O(1), one O(10), one O(12), one O(4), one O(6), and one O(7) atom to form CuO6 octahedra that share corners with four equivalent Sb(2)O6 octahedra, corners with four equivalent Sb(3)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, and  an edgeedge with one Sb(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 50-51°. In the second Cu site, Cu(2) is bonded to one O(11), one O(2), one O(3), one O(5), one O(8), and one O(9) atom to form distorted CuO6 octahedra that share corners with four equivalent Sb(1)O6 octahedra, corners with four equivalent Sb(4)O6 octahedra,  an edgeedge with one Sb(2)O6 octahedra,  an edgeedge with one Sb(3)O6 octahedra, and faces with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 45-53°. There are four inequivalent Sb sites. In the first Sb site, Sb(1) is bonded to one O(10), one O(11), one O(12), one O(2), one O(3), and one O(9) atom to form SbO6 octahedra that share corners with four equivalent Cu(2)O6 octahedra, corners with four equivalent Sb(3)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra,  an edgeedge with one Sb(4)O6 octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-53°. In the second Sb site, Sb(2) is bonded to one O(1), one O(4), one O(5), one O(6), one O(7), and one O(8) atom to form SbO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with four equivalent Cu(1)O6 octahedra, corners with four equivalent Sb(4)O6 octahedra,  an edgeedge with one Cu(2)O6 octahedra, and  an edgeedge with one Sb(3)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-52°. In the third Sb site, Sb(3) is bonded to one O(1), one O(10), one O(11), one O(12), one O(2), and one O(7) atom to form SbO6 octahedra that share corners with two equivalent Mg(1)O6 octahedra, corners with four equivalent Cu(1)O6 octahedra, corners with four equivalent Sb(1)O6 octahedra,  an edgeedge with one Cu(2)O6 octahedra, and  an edgeedge with one Sb(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 43-52°. In the fourth Sb site, Sb(4) is bonded to one O(3), one O(4), one O(5), one O(6), one O(8), and one O(9) atom to form SbO6 octahedra that share corners with four equivalent Cu(2)O6 octahedra, corners with four equivalent Sb(2)O6 octahedra,  an edgeedge with one Cu(1)O6 octahedra,  an edgeedge with one Sb(1)O6 octahedra, and edges with two equivalent Mg(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 44-53°. There are twelve inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to one Cu(1), one Sb(2), and one Sb(3) atom. In the second O site, O(2) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Cu(2), one Sb(1), and one Sb(3) atom. In the third O site, O(3) is bonded to one Mg(1), one Cu(2), one Sb(1), and one Sb(4) atom to form a mixture of distorted edge and corner-sharing OMgCuSb2 trigonal pyramids. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Cu(1), one Sb(2), and one Sb(4) atom. In the fifth O site, O(5) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Cu(2), one Sb(2), and one Sb(4) atom. In the sixth O site, O(6) is bonded in a distorted T-shaped geometry to one Cu(1), one Sb(2), and one Sb(4) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Cu(1), one Sb(2), and one Sb(3) atom. In the eighth O site, O(8) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Cu(2), one Sb(2), and one Sb(4) atom. In the ninth O site, O(9) is bonded to one Mg(1), one Cu(2), one Sb(1), and one Sb(4) atom to form a mixture of distorted edge and corner-sharing OMgCuSb2 trigonal pyramids. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Cu(1), one Sb(1), and one Sb(3) atom. In the eleventh O site, O(11) is bonded in a rectangular see-saw-like geometry to one Mg(1), one Cu(2), one Sb(1), and one Sb(3) atom. In the twelfth O site, O(12) is bonded in a distorted T-shaped geometry to one Cu(1), one Sb(1), and one Sb(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgCu2(SbO3)4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.051
_cell_length_b   4.837
_cell_length_c   10.597
_cell_angle_alpha   89.808
_cell_angle_beta   118.357
_cell_angle_gamma   90.338
_symmetry_Int_Tables_number   1
_cell_volume   227.833
_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  0.991  0.003  0.489  1.0
  Cu  Cu1  1  0.989  0.999  0.988  1.0
  Cu  Cu2  1  0.982  0.503  0.487  1.0
  Sb  Sb3  1  0.310  0.000  0.309  1.0
  Sb  Sb4  1  0.320  0.499  0.821  1.0
  Sb  Sb5  1  0.658  0.500  0.156  1.0
  Sb  Sb6  1  0.667  0.999  0.667  1.0
  O  O7  1  0.316  0.701  0.989  1.0
  O  O8  1  0.650  0.742  0.320  1.0
  O  O9  1  0.654  0.200  0.488  1.0
  O  O10  1  0.998  0.227  0.816  1.0
  O  O11  1  0.981  0.740  0.655  1.0
  O  O12  1  0.631  0.771  0.816  1.0
  O  O13  1  0.662  0.297  0.988  1.0
  O  O14  1  0.327  0.260  0.655  1.0
  O  O15  1  0.322  0.799  0.488  1.0
  O  O16  1  0.345  0.230  0.162  1.0
  O  O17  1  0.994  0.259  0.321  1.0
  O  O18  1  0.982  0.770  0.161  1.0
[/CIF]
.