The material structure described by Ba2Mg(WO4)2 crystallizes in the triclinic P1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. Mg(1) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(6), one O(7), and one O(8) atom. There are two inequivalent W sites. In the first W site, W(1) is bonded in a distorted tetrahedral geometry to one O(3), one O(4), one O(5), and one O(6) atom. In the second W site, W(2) is bonded in a distorted trigonal pyramidal geometry to one O(1), one O(2), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one W(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Ba(1), one Ba(2), and one W(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one W(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(1) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(2) atom. is represented by the CIF file [CIF]
data_Ba2Mg(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.218
_cell_length_b   8.191
_cell_length_c   7.126
_cell_angle_alpha   129.788
_cell_angle_beta   125.515
_cell_angle_gamma   89.091
_symmetry_Int_Tables_number   1
_cell_volume   246.732
_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
  Ba  Ba0  1  0.615  0.866  0.275  1.0
  Ba  Ba1  1  0.336  0.140  0.727  1.0
  Mg  Mg2  1  0.726  0.985  0.976  1.0
  W  W3  1  0.142  0.394  0.266  1.0
  W  W4  1  0.881  0.604  0.734  1.0
  O  O5  1  0.853  0.803  0.055  1.0
  O  O6  1  0.216  0.787  0.101  1.0
  O  O7  1  0.368  0.749  0.622  1.0
  O  O8  1  0.257  0.370  0.559  1.0
  O  O9  1  0.110  0.209  0.894  1.0
  O  O10  1  0.799  0.198  0.951  1.0
  O  O11  1  0.746  0.246  0.367  1.0
  O  O12  1  0.694  0.641  0.459  1.0
[/CIF]
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The material structure described by Ba2Mg(WO4)2 crystallizes in the triclinic P1 space group. There are two inequivalent Ba sites. In the first Ba site, Ba(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. In the second Ba site, Ba(2) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. Mg(1) is bonded in a 4-coordinate geometry to one O(1), one O(3), one O(6), one O(7), and one O(8) atom. There are two inequivalent W sites. In the first W site, W(1) is bonded in a distorted tetrahedral geometry to one O(3), one O(4), one O(5), and one O(6) atom. In the second W site, W(2) is bonded in a distorted trigonal pyramidal geometry to one O(1), one O(2), one O(7), and one O(8) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(2) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one W(2) atom. In the third O site, O(3) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(1) atom. In the fourth O site, O(4) is bonded in a distorted T-shaped geometry to one Ba(1), one Ba(2), and one W(1) atom. In the fifth O site, O(5) is bonded in a 3-coordinate geometry to one Ba(1), one Ba(2), and one W(1) atom. In the sixth O site, O(6) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(1) atom. In the seventh O site, O(7) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(2) atom. In the eighth O site, O(8) is bonded in a 4-coordinate geometry to one Ba(1), one Ba(2), one Mg(1), and one W(2) atom. is represented by the CIF file [CIF]
data_Ba2Mg(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.218
_cell_length_b   8.191
_cell_length_c   7.126
_cell_angle_alpha   129.788
_cell_angle_beta   125.515
_cell_angle_gamma   89.091
_symmetry_Int_Tables_number   1
_cell_volume   246.732
_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
  Ba  Ba0  1  0.615  0.866  0.275  1.0
  Ba  Ba1  1  0.336  0.140  0.727  1.0
  Mg  Mg2  1  0.726  0.985  0.976  1.0
  W  W3  1  0.142  0.394  0.266  1.0
  W  W4  1  0.881  0.604  0.734  1.0
  O  O5  1  0.853  0.803  0.055  1.0
  O  O6  1  0.216  0.787  0.101  1.0
  O  O7  1  0.368  0.749  0.622  1.0
  O  O8  1  0.257  0.370  0.559  1.0
  O  O9  1  0.110  0.209  0.894  1.0
  O  O10  1  0.799  0.198  0.951  1.0
  O  O11  1  0.746  0.246  0.367  1.0
  O  O12  1  0.694  0.641  0.459  1.0
[/CIF]
.