The structure described by MgSc2(AgO3)2 crystallizes in the orthorhombic Amm2 space group. Mg(1) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form corner-sharing MgO4 tetrahedra. Sc(1) is bonded in a 5-coordinate geometry to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. In the second Ag site, Ag(2) is bonded in a rectangular see-saw-like geometry to two equivalent O(3) and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to two equivalent Sc(1) and one Ag(1) atom. In the second O site, O(2) is bonded to one Mg(1), two equivalent Sc(1), and one Ag(1) atom to form OMgSc2Ag trigonal pyramids that share corners with two equivalent O(4)Sc2Ag2 tetrahedra, corners with two equivalent O(2)MgSc2Ag trigonal pyramids, and  an edgeedge with one O(2)MgSc2Ag trigonal pyramid. In the third O site, O(3) is bonded in a 6-coordinate geometry to two equivalent Mg(1), two equivalent Sc(1), and two equivalent Ag(2) atoms. In the fourth O site, O(4) is bonded to two equivalent Sc(1) and two equivalent Ag(2) atoms to form OSc2Ag2 tetrahedra that share corners with two equivalent O(4)Sc2Ag2 tetrahedra and corners with four equivalent O(2)MgSc2Ag trigonal pyramids. is represented by the CIF file [CIF]
data_MgSc2(AgO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.895
_cell_length_b   6.891
_cell_length_c   3.276
_cell_angle_alpha   90.009
_cell_angle_beta   90.010
_cell_angle_gamma   78.288
_symmetry_Int_Tables_number   1
_cell_volume   152.428
_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  0.763  0.763  0.500  1.0
  Sc  Sc1  1  0.036  0.448  1.000  1.0
  Sc  Sc2  1  0.448  0.036  1.000  1.0
  Ag  Ag3  1  0.496  0.495  0.500  1.0
  Ag  Ag4  1  0.015  0.014  0.500  1.0
  O  O5  1  0.184  0.526  0.500  1.0
  O  O6  1  0.475  0.821  0.500  1.0
  O  O7  1  0.859  0.858  0.000  1.0
  O  O8  1  0.153  0.153  1.000  1.0
  O  O9  1  0.821  0.475  0.500  1.0
  O  O10  1  0.527  0.184  0.500  1.0
[/CIF]
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The structure described by MgSc2(AgO3)2 crystallizes in the orthorhombic Amm2 space group. Mg(1) is bonded to two equivalent O(2) and two equivalent O(3) atoms to form corner-sharing MgO4 tetrahedra. Sc(1) is bonded in a 5-coordinate geometry to one O(3), one O(4), two equivalent O(1), and two equivalent O(2) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(1) is bonded in a rectangular see-saw-like geometry to two equivalent O(1) and two equivalent O(2) atoms. In the second Ag site, Ag(2) is bonded in a rectangular see-saw-like geometry to two equivalent O(3) and two equivalent O(4) atoms. There are four inequivalent O sites. In the first O site, O(1) is bonded in a trigonal planar geometry to two equivalent Sc(1) and one Ag(1) atom. In the second O site, O(2) is bonded to one Mg(1), two equivalent Sc(1), and one Ag(1) atom to form OMgSc2Ag trigonal pyramids that share corners with two equivalent O(4)Sc2Ag2 tetrahedra, corners with two equivalent O(2)MgSc2Ag trigonal pyramids, and  an edgeedge with one O(2)MgSc2Ag trigonal pyramid. In the third O site, O(3) is bonded in a 6-coordinate geometry to two equivalent Mg(1), two equivalent Sc(1), and two equivalent Ag(2) atoms. In the fourth O site, O(4) is bonded to two equivalent Sc(1) and two equivalent Ag(2) atoms to form OSc2Ag2 tetrahedra that share corners with two equivalent O(4)Sc2Ag2 tetrahedra and corners with four equivalent O(2)MgSc2Ag trigonal pyramids. is represented by the CIF file [CIF]
data_MgSc2(AgO3)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.895
_cell_length_b   6.891
_cell_length_c   3.276
_cell_angle_alpha   90.009
_cell_angle_beta   90.010
_cell_angle_gamma   78.288
_symmetry_Int_Tables_number   1
_cell_volume   152.428
_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  0.763  0.763  0.500  1.0
  Sc  Sc1  1  0.036  0.448  1.000  1.0
  Sc  Sc2  1  0.448  0.036  1.000  1.0
  Ag  Ag3  1  0.496  0.495  0.500  1.0
  Ag  Ag4  1  0.015  0.014  0.500  1.0
  O  O5  1  0.184  0.526  0.500  1.0
  O  O6  1  0.475  0.821  0.500  1.0
  O  O7  1  0.859  0.858  0.000  1.0
  O  O8  1  0.153  0.153  1.000  1.0
  O  O9  1  0.821  0.475  0.500  1.0
  O  O10  1  0.527  0.184  0.500  1.0
[/CIF]
.