The structure described by MgCuAl(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), 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 5-coordinate geometry to one O(1), one O(2), one O(3), one O(7), and one O(8) atom. In the second W site, W(2) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. Cu(1) is bonded in a 2-coordinate geometry to one O(3), one O(4), and one O(7) atom. Al(1) is bonded in a trigonal bipyramidal geometry to one O(1), one O(2), one O(4), one O(5), and one O(6) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one W(1) and one Al(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one W(1), and one Al(1) atom. In the third O site, O(3) is bonded in a distorted see-saw-like geometry to one Mg(1), one W(1), one W(2), and one Cu(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one W(2), one Cu(1), and one Al(1) atom. In the fifth O site, O(5) is bonded in a T-shaped geometry to one Mg(1), one W(2), and one Al(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one W(2) and one Al(1) atom. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Mg(1), one W(1), one W(2), and one Cu(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Mg(1), one W(1), and one W(2) atom. is represented by the CIF file [CIF]
data_MgAlCu(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.262
_cell_length_b   6.031
_cell_length_c   5.883
_cell_angle_alpha   94.703
_cell_angle_beta   118.112
_cell_angle_gamma   95.283
_symmetry_Int_Tables_number   1
_cell_volume   162.299
_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  0.643  0.246  0.084  1.0
  Al  Al1  1  0.606  0.774  0.161  1.0
  Cu  Cu2  1  0.154  0.215  0.113  1.0
  W  W3  1  0.953  0.422  0.641  1.0
  W  W4  1  0.345  0.036  0.567  1.0
  O  O5  1  0.202  0.647  0.891  1.0
  O  O6  1  0.635  0.512  0.308  1.0
  O  O7  1  0.186  0.172  0.810  1.0
  O  O8  1  0.547  0.004  0.343  1.0
  O  O9  1  0.610  0.924  0.893  1.0
  O  O10  1  0.020  0.831  0.350  1.0
  O  O11  1  0.067  0.287  0.380  1.0
  O  O12  1  0.652  0.332  0.750  1.0
[/CIF]
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The structure described by MgCuAl(WO4)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded in a 6-coordinate geometry to one O(2), one O(3), one O(4), one O(5), 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 5-coordinate geometry to one O(1), one O(2), one O(3), one O(7), and one O(8) atom. In the second W site, W(2) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), one O(7), and one O(8) atom. Cu(1) is bonded in a 2-coordinate geometry to one O(3), one O(4), and one O(7) atom. Al(1) is bonded in a trigonal bipyramidal geometry to one O(1), one O(2), one O(4), one O(5), and one O(6) atom. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one W(1) and one Al(1) atom. In the second O site, O(2) is bonded in a 3-coordinate geometry to one Mg(1), one W(1), and one Al(1) atom. In the third O site, O(3) is bonded in a distorted see-saw-like geometry to one Mg(1), one W(1), one W(2), and one Cu(1) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one Mg(1), one W(2), one Cu(1), and one Al(1) atom. In the fifth O site, O(5) is bonded in a T-shaped geometry to one Mg(1), one W(2), and one Al(1) atom. In the sixth O site, O(6) is bonded in a bent 150 degrees geometry to one W(2) and one Al(1) atom. In the seventh O site, O(7) is bonded in a distorted see-saw-like geometry to one Mg(1), one W(1), one W(2), and one Cu(1) atom. In the eighth O site, O(8) is bonded in a 3-coordinate geometry to one Mg(1), one W(1), and one W(2) atom. is represented by the CIF file [CIF]
data_MgAlCu(WO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.262
_cell_length_b   6.031
_cell_length_c   5.883
_cell_angle_alpha   94.703
_cell_angle_beta   118.112
_cell_angle_gamma   95.283
_symmetry_Int_Tables_number   1
_cell_volume   162.299
_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  0.643  0.246  0.084  1.0
  Al  Al1  1  0.606  0.774  0.161  1.0
  Cu  Cu2  1  0.154  0.215  0.113  1.0
  W  W3  1  0.953  0.422  0.641  1.0
  W  W4  1  0.345  0.036  0.567  1.0
  O  O5  1  0.202  0.647  0.891  1.0
  O  O6  1  0.635  0.512  0.308  1.0
  O  O7  1  0.186  0.172  0.810  1.0
  O  O8  1  0.547  0.004  0.343  1.0
  O  O9  1  0.610  0.924  0.893  1.0
  O  O10  1  0.020  0.831  0.350  1.0
  O  O11  1  0.067  0.287  0.380  1.0
  O  O12  1  0.652  0.332  0.750  1.0
[/CIF]
.