The crystal structure described by MgWAsO5 crystallizes in the orthorhombic P2_12_12_1 space group. Mg(1) is bonded to one O(1), one O(3), one O(4), and two equivalent O(2) atoms to form distorted MgO5 trigonal bipyramids that share corners with four equivalent W(1)O6 octahedra and corners with two equivalent Mg(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 40-51°. W(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(5) atoms to form WO6 octahedra that share corners with four equivalent Mg(1)O5 trigonal bipyramids and edges with two equivalent W(1)O6 octahedra. As(1) is bonded in a 3-coordinate geometry to one O(2), one O(3), and one O(4) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1) and two equivalent W(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to two equivalent Mg(1) and one As(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mg(1), one W(1), and one As(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(1), and one As(1) atom. In the fifth O site, O(5) is bonded in a water-like geometry to two equivalent W(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgAsWO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.082
_cell_length_b   7.977
_cell_length_c   9.246
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   448.538
_cell_formula_units_Z   4
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  0.989  0.651  0.872  1.0
  Mg  Mg1  1  0.511  0.349  0.372  1.0
  Mg  Mg2  1  0.011  0.151  0.628  1.0
  Mg  Mg3  1  0.489  0.849  0.128  1.0
  As  As4  1  0.435  0.327  0.694  1.0
  As  As5  1  0.065  0.673  0.194  1.0
  As  As6  1  0.565  0.827  0.806  1.0
  As  As7  1  0.935  0.173  0.306  1.0
  W  W8  1  0.270  0.745  0.523  1.0
  W  W9  1  0.230  0.255  0.023  1.0
  W  W10  1  0.730  0.245  0.977  1.0
  W  W11  1  0.770  0.755  0.477  1.0
  O  O12  1  0.523  0.584  0.463  1.0
  O  O13  1  0.977  0.416  0.963  1.0
  O  O14  1  0.477  0.084  0.037  1.0
  O  O15  1  0.023  0.916  0.537  1.0
  O  O16  1  0.329  0.248  0.533  1.0
  O  O17  1  0.171  0.752  0.033  1.0
  O  O18  1  0.671  0.748  0.967  1.0
  O  O19  1  0.829  0.252  0.467  1.0
  O  O20  1  0.727  0.193  0.775  1.0
  O  O21  1  0.773  0.807  0.275  1.0
  O  O22  1  0.273  0.693  0.725  1.0
  O  O23  1  0.227  0.307  0.225  1.0
  O  O24  1  0.229  0.211  0.796  1.0
  O  O25  1  0.271  0.789  0.296  1.0
  O  O26  1  0.771  0.711  0.704  1.0
  O  O27  1  0.729  0.289  0.204  1.0
  O  O28  1  0.017  0.594  0.472  1.0
  O  O29  1  0.483  0.406  0.972  1.0
  O  O30  1  0.983  0.094  0.028  1.0
  O  O31  1  0.517  0.906  0.528  1.0
[/CIF]
.
The crystal structure described by MgWAsO5 crystallizes in the orthorhombic P2_12_12_1 space group. Mg(1) is bonded to one O(1), one O(3), one O(4), and two equivalent O(2) atoms to form distorted MgO5 trigonal bipyramids that share corners with four equivalent W(1)O6 octahedra and corners with two equivalent Mg(1)O5 trigonal bipyramids. The corner-sharing octahedral tilt angles range from 40-51°. W(1) is bonded to one O(3), one O(4), two equivalent O(1), and two equivalent O(5) atoms to form WO6 octahedra that share corners with four equivalent Mg(1)O5 trigonal bipyramids and edges with two equivalent W(1)O6 octahedra. As(1) is bonded in a 3-coordinate geometry to one O(2), one O(3), and one O(4) atom. There are five inequivalent O sites. In the first O site, O(1) is bonded in a distorted trigonal planar geometry to one Mg(1) and two equivalent W(1) atoms. In the second O site, O(2) is bonded in a distorted T-shaped geometry to two equivalent Mg(1) and one As(1) atom. In the third O site, O(3) is bonded in a trigonal planar geometry to one Mg(1), one W(1), and one As(1) atom. In the fourth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(1), and one As(1) atom. In the fifth O site, O(5) is bonded in a water-like geometry to two equivalent W(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgAsWO5
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.082
_cell_length_b   7.977
_cell_length_c   9.246
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   448.538
_cell_formula_units_Z   4
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  0.989  0.651  0.872  1.0
  Mg  Mg1  1  0.511  0.349  0.372  1.0
  Mg  Mg2  1  0.011  0.151  0.628  1.0
  Mg  Mg3  1  0.489  0.849  0.128  1.0
  As  As4  1  0.435  0.327  0.694  1.0
  As  As5  1  0.065  0.673  0.194  1.0
  As  As6  1  0.565  0.827  0.806  1.0
  As  As7  1  0.935  0.173  0.306  1.0
  W  W8  1  0.270  0.745  0.523  1.0
  W  W9  1  0.230  0.255  0.023  1.0
  W  W10  1  0.730  0.245  0.977  1.0
  W  W11  1  0.770  0.755  0.477  1.0
  O  O12  1  0.523  0.584  0.463  1.0
  O  O13  1  0.977  0.416  0.963  1.0
  O  O14  1  0.477  0.084  0.037  1.0
  O  O15  1  0.023  0.916  0.537  1.0
  O  O16  1  0.329  0.248  0.533  1.0
  O  O17  1  0.171  0.752  0.033  1.0
  O  O18  1  0.671  0.748  0.967  1.0
  O  O19  1  0.829  0.252  0.467  1.0
  O  O20  1  0.727  0.193  0.775  1.0
  O  O21  1  0.773  0.807  0.275  1.0
  O  O22  1  0.273  0.693  0.725  1.0
  O  O23  1  0.227  0.307  0.225  1.0
  O  O24  1  0.229  0.211  0.796  1.0
  O  O25  1  0.271  0.789  0.296  1.0
  O  O26  1  0.771  0.711  0.704  1.0
  O  O27  1  0.729  0.289  0.204  1.0
  O  O28  1  0.017  0.594  0.472  1.0
  O  O29  1  0.483  0.406  0.972  1.0
  O  O30  1  0.983  0.094  0.028  1.0
  O  O31  1  0.517  0.906  0.528  1.0
[/CIF]
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