The compound described by MgSb2O4 crystallizes in the triclinic P1 space group. There are six inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(17), one O(3), and one O(4) atom. In the second Mg site, Mg(2) is bonded in a distorted square co-planar geometry to one O(12), one O(16), one O(6), and one O(9) atom. In the third Mg site, Mg(3) is bonded to one O(21), one O(23), one O(24), one O(3), and one O(4) atom to form distorted MgO5 trigonal bipyramids that share corners with three equivalent Sb(12)O5 square pyramids. In the fourth Mg site, Mg(4) is bonded in a distorted trigonal bipyramidal geometry to one O(10), one O(14), one O(15), one O(18), and one O(20) atom. In the fifth Mg site, Mg(5) is bonded in a tetrahedral geometry to one O(11), one O(16), one O(5), and one O(7) atom. In the sixth Mg site, Mg(6) is bonded in a 6-coordinate geometry to one O(13), one O(14), one O(15), one O(18), one O(19), and one O(22) atom. There are twelve inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(7) atom. In the second Sb site, Sb(2) is bonded in a distorted T-shaped geometry to one O(3), one O(4), and one O(8) atom. In the third Sb site, Sb(3) is bonded in a distorted T-shaped geometry to one O(10), one O(15), and one O(6) atom. In the fourth Sb site, Sb(4) is bonded in a 4-coordinate geometry to one O(1), one O(11), one O(2), and one O(5) atom. In the fifth Sb site, Sb(5) is bonded in a 5-coordinate geometry to one O(11), one O(12), one O(5), one O(7), and one O(9) atom. In the sixth Sb site, Sb(6) is bonded in a distorted trigonal non-coplanar geometry to one O(12), one O(16), and one O(9) atom. In the seventh Sb site, Sb(7) is bonded in a 3-coordinate geometry to one O(14), one O(20), and one O(22) atom. In the eighth Sb site, Sb(8) is bonded in a distorted rectangular see-saw-like geometry to one O(10), one O(13), one O(19), and one O(6) atom. In the ninth Sb site, Sb(9) is bonded in a distorted trigonal non-coplanar geometry to one O(20), one O(22), and one O(24) atom. In the tenth Sb site, Sb(10) is bonded in a 4-coordinate geometry to one O(13), one O(14), one O(18), and one O(19) atom. In the eleventh Sb site, Sb(11) is bonded in a distorted trigonal non-coplanar geometry to one O(17), one O(21), and one O(23) atom. In the twelfth Sb site, Sb(12) is bonded to one O(17), one O(21), one O(23), one O(24), and one O(8) atom to form SbO5 square pyramids that share corners with three equivalent Mg(3)O5 trigonal bipyramids. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one Sb(1), and one Sb(4) atom. In the second O site, O(2) is bonded in a water-like geometry to one Sb(1) and one Sb(4) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mg(3), and one Sb(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mg(3), and one Sb(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mg(5), one Sb(4), and one Sb(5) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mg(2), one Sb(3), and one Sb(8) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Mg(5), one Sb(1), and one Sb(5) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Sb(12) and one Sb(2) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Mg(2), one Sb(5), and one Sb(6) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Mg(4), one Sb(3), and one Sb(8) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Mg(5), one Sb(4), and one Sb(5) atom. In the twelfth O site, O(12) is bonded in a trigonal planar geometry to one Mg(2), one Sb(5), and one Sb(6) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one Mg(6), one Sb(10), and one Sb(8) atom. In the fourteenth O site, O(14) is bonded in a distorted tetrahedral geometry to one Mg(4), one Mg(6), one Sb(10), and one Sb(7) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to one Mg(4), one Mg(6), and one Sb(3) atom. In the sixteenth O site, O(16) is bonded in a trigonal planar geometry to one Mg(2), one Mg(5), and one Sb(6) atom. In the seventeenth O site, O(17) is bonded in a trigonal planar geometry to one Mg(1), one Sb(11), and one Sb(12) atom. In the eighteenth O site, O(18) is bonded in a 2-coordinate geometry to one Mg(4), one Mg(6), and one Sb(10) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal planar geometry to one Mg(6), one Sb(10), and one Sb(8) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal planar geometry to one Mg(4), one Sb(7), and one Sb(9) atom. In the twenty-first O site, O(21) is bonded in a trigonal non-coplanar geometry to one Mg(3), one Sb(11), and one Sb(12) atom. In the twenty-second O site, O(22) is bonded in a distorted bent 120 degrees geometry to one Mg(6), one Sb(7), and one Sb(9) atom. In the twenty-third O site, O(23) is bonded in a distorted trigonal planar geometry to one Mg(3), one Sb(11), and one Sb(12) atom. In the twenty-fourth O site, O(24) is bonded in a distorted trigonal planar geometry to one Mg(3), one Sb(12), and one Sb(9) atom. is represented by the CIF file [CIF]
data_Mg(SbO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.049
_cell_length_b   6.060
_cell_length_c   20.476
_cell_angle_alpha   89.710
_cell_angle_beta   94.197
_cell_angle_gamma   110.960
_symmetry_Int_Tables_number   1
_cell_volume   698.953
_cell_formula_units_Z   6
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  0.877  0.147  0.941  1.0
  Mg  Mg1  1  0.528  0.452  0.591  1.0
  Mg  Mg2  1  0.506  0.531  0.018  1.0
  Mg  Mg3  1  0.243  0.814  0.312  1.0
  Mg  Mg4  1  0.786  0.184  0.715  1.0
  Mg  Mg5  1  0.414  0.441  0.356  1.0
  Sb  Sb6  1  0.797  0.615  0.829  1.0
  Sb  Sb7  1  0.299  0.706  0.904  1.0
  Sb  Sb8  1  0.446  0.907  0.459  1.0
  Sb  Sb9  1  0.330  0.153  0.816  1.0
  Sb  Sb10  1  0.123  0.804  0.685  1.0
  Sb  Sb11  1  0.901  0.075  0.569  1.0
  Sb  Sb12  1  0.256  0.215  0.208  1.0
  Sb  Sb13  1  0.958  0.488  0.461  1.0
  Sb  Sb14  1  0.602  0.802  0.175  1.0
  Sb  Sb15  1  0.877  0.208  0.323  1.0
  Sb  Sb16  1  0.830  0.318  0.099  1.0
  Sb  Sb17  1  0.148  0.905  0.062  1.0
  O  O18  1  0.722  0.288  0.867  1.0
  O  O19  1  0.456  0.494  0.792  1.0
  O  O20  1  0.631  0.795  0.938  1.0
  O  O21  1  0.216  0.409  0.951  1.0
  O  O22  1  0.462  0.018  0.747  1.0
  O  O23  1  0.363  0.612  0.511  1.0
  O  O24  1  0.922  0.529  0.746  1.0
  O  O25  1  0.218  0.915  0.969  1.0
  O  O26  1  0.224  0.191  0.611  1.0
  O  O27  1  0.106  0.797  0.417  1.0
  O  O28  1  0.025  0.028  0.741  1.0
  O  O29  1  0.794  0.773  0.620  1.0
  O  O30  1  0.103  0.306  0.407  1.0
  O  O31  1  0.221  0.130  0.304  1.0
  O  O32  1  0.511  0.790  0.375  1.0
  O  O33  1  0.742  0.249  0.619  1.0
  O  O34  1  0.904  0.104  0.039  1.0
  O  O35  1  0.088  0.489  0.280  1.0
  O  O36  1  0.706  0.376  0.382  1.0
  O  O37  1  0.396  0.943  0.220  1.0
  O  O38  1  0.857  0.572  0.036  1.0
  O  O39  1  0.535  0.512  0.232  1.0
  O  O40  1  0.482  0.237  0.079  1.0
  O  O41  1  0.394  0.679  0.095  1.0
[/CIF]
.
The compound described by MgSb2O4 crystallizes in the triclinic P1 space group. There are six inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a distorted rectangular see-saw-like geometry to one O(1), one O(17), one O(3), and one O(4) atom. In the second Mg site, Mg(2) is bonded in a distorted square co-planar geometry to one O(12), one O(16), one O(6), and one O(9) atom. In the third Mg site, Mg(3) is bonded to one O(21), one O(23), one O(24), one O(3), and one O(4) atom to form distorted MgO5 trigonal bipyramids that share corners with three equivalent Sb(12)O5 square pyramids. In the fourth Mg site, Mg(4) is bonded in a distorted trigonal bipyramidal geometry to one O(10), one O(14), one O(15), one O(18), and one O(20) atom. In the fifth Mg site, Mg(5) is bonded in a tetrahedral geometry to one O(11), one O(16), one O(5), and one O(7) atom. In the sixth Mg site, Mg(6) is bonded in a 6-coordinate geometry to one O(13), one O(14), one O(15), one O(18), one O(19), and one O(22) atom. There are twelve inequivalent Sb sites. In the first Sb site, Sb(1) is bonded in a distorted T-shaped geometry to one O(1), one O(2), and one O(7) atom. In the second Sb site, Sb(2) is bonded in a distorted T-shaped geometry to one O(3), one O(4), and one O(8) atom. In the third Sb site, Sb(3) is bonded in a distorted T-shaped geometry to one O(10), one O(15), and one O(6) atom. In the fourth Sb site, Sb(4) is bonded in a 4-coordinate geometry to one O(1), one O(11), one O(2), and one O(5) atom. In the fifth Sb site, Sb(5) is bonded in a 5-coordinate geometry to one O(11), one O(12), one O(5), one O(7), and one O(9) atom. In the sixth Sb site, Sb(6) is bonded in a distorted trigonal non-coplanar geometry to one O(12), one O(16), and one O(9) atom. In the seventh Sb site, Sb(7) is bonded in a 3-coordinate geometry to one O(14), one O(20), and one O(22) atom. In the eighth Sb site, Sb(8) is bonded in a distorted rectangular see-saw-like geometry to one O(10), one O(13), one O(19), and one O(6) atom. In the ninth Sb site, Sb(9) is bonded in a distorted trigonal non-coplanar geometry to one O(20), one O(22), and one O(24) atom. In the tenth Sb site, Sb(10) is bonded in a 4-coordinate geometry to one O(13), one O(14), one O(18), and one O(19) atom. In the eleventh Sb site, Sb(11) is bonded in a distorted trigonal non-coplanar geometry to one O(17), one O(21), and one O(23) atom. In the twelfth Sb site, Sb(12) is bonded to one O(17), one O(21), one O(23), one O(24), and one O(8) atom to form SbO5 square pyramids that share corners with three equivalent Mg(3)O5 trigonal bipyramids. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded in a 3-coordinate geometry to one Mg(1), one Sb(1), and one Sb(4) atom. In the second O site, O(2) is bonded in a water-like geometry to one Sb(1) and one Sb(4) atom. In the third O site, O(3) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mg(3), and one Sb(2) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mg(3), and one Sb(2) atom. In the fifth O site, O(5) is bonded in a distorted trigonal planar geometry to one Mg(5), one Sb(4), and one Sb(5) atom. In the sixth O site, O(6) is bonded in a 3-coordinate geometry to one Mg(2), one Sb(3), and one Sb(8) atom. In the seventh O site, O(7) is bonded in a trigonal planar geometry to one Mg(5), one Sb(1), and one Sb(5) atom. In the eighth O site, O(8) is bonded in a distorted bent 150 degrees geometry to one Sb(12) and one Sb(2) atom. In the ninth O site, O(9) is bonded in a 2-coordinate geometry to one Mg(2), one Sb(5), and one Sb(6) atom. In the tenth O site, O(10) is bonded in a distorted T-shaped geometry to one Mg(4), one Sb(3), and one Sb(8) atom. In the eleventh O site, O(11) is bonded in a distorted trigonal planar geometry to one Mg(5), one Sb(4), and one Sb(5) atom. In the twelfth O site, O(12) is bonded in a trigonal planar geometry to one Mg(2), one Sb(5), and one Sb(6) atom. In the thirteenth O site, O(13) is bonded in a distorted trigonal non-coplanar geometry to one Mg(6), one Sb(10), and one Sb(8) atom. In the fourteenth O site, O(14) is bonded in a distorted tetrahedral geometry to one Mg(4), one Mg(6), one Sb(10), and one Sb(7) atom. In the fifteenth O site, O(15) is bonded in a distorted trigonal non-coplanar geometry to one Mg(4), one Mg(6), and one Sb(3) atom. In the sixteenth O site, O(16) is bonded in a trigonal planar geometry to one Mg(2), one Mg(5), and one Sb(6) atom. In the seventeenth O site, O(17) is bonded in a trigonal planar geometry to one Mg(1), one Sb(11), and one Sb(12) atom. In the eighteenth O site, O(18) is bonded in a 2-coordinate geometry to one Mg(4), one Mg(6), and one Sb(10) atom. In the nineteenth O site, O(19) is bonded in a distorted trigonal planar geometry to one Mg(6), one Sb(10), and one Sb(8) atom. In the twentieth O site, O(20) is bonded in a distorted trigonal planar geometry to one Mg(4), one Sb(7), and one Sb(9) atom. In the twenty-first O site, O(21) is bonded in a trigonal non-coplanar geometry to one Mg(3), one Sb(11), and one Sb(12) atom. In the twenty-second O site, O(22) is bonded in a distorted bent 120 degrees geometry to one Mg(6), one Sb(7), and one Sb(9) atom. In the twenty-third O site, O(23) is bonded in a distorted trigonal planar geometry to one Mg(3), one Sb(11), and one Sb(12) atom. In the twenty-fourth O site, O(24) is bonded in a distorted trigonal planar geometry to one Mg(3), one Sb(12), and one Sb(9) atom. is represented by the CIF file [CIF]
data_Mg(SbO2)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.049
_cell_length_b   6.060
_cell_length_c   20.476
_cell_angle_alpha   89.710
_cell_angle_beta   94.197
_cell_angle_gamma   110.960
_symmetry_Int_Tables_number   1
_cell_volume   698.953
_cell_formula_units_Z   6
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  0.877  0.147  0.941  1.0
  Mg  Mg1  1  0.528  0.452  0.591  1.0
  Mg  Mg2  1  0.506  0.531  0.018  1.0
  Mg  Mg3  1  0.243  0.814  0.312  1.0
  Mg  Mg4  1  0.786  0.184  0.715  1.0
  Mg  Mg5  1  0.414  0.441  0.356  1.0
  Sb  Sb6  1  0.797  0.615  0.829  1.0
  Sb  Sb7  1  0.299  0.706  0.904  1.0
  Sb  Sb8  1  0.446  0.907  0.459  1.0
  Sb  Sb9  1  0.330  0.153  0.816  1.0
  Sb  Sb10  1  0.123  0.804  0.685  1.0
  Sb  Sb11  1  0.901  0.075  0.569  1.0
  Sb  Sb12  1  0.256  0.215  0.208  1.0
  Sb  Sb13  1  0.958  0.488  0.461  1.0
  Sb  Sb14  1  0.602  0.802  0.175  1.0
  Sb  Sb15  1  0.877  0.208  0.323  1.0
  Sb  Sb16  1  0.830  0.318  0.099  1.0
  Sb  Sb17  1  0.148  0.905  0.062  1.0
  O  O18  1  0.722  0.288  0.867  1.0
  O  O19  1  0.456  0.494  0.792  1.0
  O  O20  1  0.631  0.795  0.938  1.0
  O  O21  1  0.216  0.409  0.951  1.0
  O  O22  1  0.462  0.018  0.747  1.0
  O  O23  1  0.363  0.612  0.511  1.0
  O  O24  1  0.922  0.529  0.746  1.0
  O  O25  1  0.218  0.915  0.969  1.0
  O  O26  1  0.224  0.191  0.611  1.0
  O  O27  1  0.106  0.797  0.417  1.0
  O  O28  1  0.025  0.028  0.741  1.0
  O  O29  1  0.794  0.773  0.620  1.0
  O  O30  1  0.103  0.306  0.407  1.0
  O  O31  1  0.221  0.130  0.304  1.0
  O  O32  1  0.511  0.790  0.375  1.0
  O  O33  1  0.742  0.249  0.619  1.0
  O  O34  1  0.904  0.104  0.039  1.0
  O  O35  1  0.088  0.489  0.280  1.0
  O  O36  1  0.706  0.376  0.382  1.0
  O  O37  1  0.396  0.943  0.220  1.0
  O  O38  1  0.857  0.572  0.036  1.0
  O  O39  1  0.535  0.512  0.232  1.0
  O  O40  1  0.482  0.237  0.079  1.0
  O  O41  1  0.394  0.679  0.095  1.0
[/CIF]
.