The material structure described by MgP8(WO12)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(10), two equivalent O(12), and two equivalent O(4) atoms to form MgO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and edges with two equivalent W(1)O6 octahedra. W(1) is bonded to one O(12), one O(2), one O(3), one O(4), one O(5), and one O(7) atom to form WO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and  an edgeedge with one Mg(1)O6 octahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(11), one O(4), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one W(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 56-57°. In the second P site, P(2) is bonded to one O(12), one O(3), one O(6), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra, corners with two equivalent W(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 28-56°. In the third P site, P(3) is bonded to one O(10), one O(5), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one W(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 17-52°. In the fourth P site, P(4) is bonded to one O(1), one O(2), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent W(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 24-53°. There are twelve inequivalent O sites. In the first O site, O(11) is bonded in a single-bond geometry to one P(1) atom. In the second O site, O(12) is bonded in a 3-coordinate geometry to one Mg(1), one W(1), and one P(2) atom. In the third O site, O(1) is bonded in a bent 150 degrees geometry to one P(1) and one P(4) atom. In the fourth O site, O(2) is bonded in a bent 150 degrees geometry to one W(1) and one P(4) atom. In the fifth O site, O(3) is bonded in a bent 150 degrees geometry to one W(1) and one P(2) atom. In the sixth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(1), and one P(1) atom. In the seventh O site, O(5) is bonded in a distorted bent 120 degrees geometry to one W(1) and one P(3) atom. In the eighth O site, O(6) is bonded in a bent 150 degrees geometry to one P(2) and one P(3) atom. In the ninth O site, O(7) is bonded in a distorted bent 120 degrees geometry to one W(1) and one P(4) atom. In the tenth O site, O(8) is bonded in a bent 120 degrees geometry to one P(3) and one P(4) atom. In the eleventh O site, O(9) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the twelfth O site, O(10) is bonded in a linear geometry to one Mg(1) and one P(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgP8(WO12)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.466
_cell_length_b   7.465
_cell_length_c   10.057
_cell_angle_alpha   81.501
_cell_angle_beta   70.767
_cell_angle_gamma   110.934
_symmetry_Int_Tables_number   1
_cell_volume   471.392
_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  0.794  0.044  0.250  1.0
  P  P1  1  0.292  0.249  0.982  1.0
  P  P2  1  0.731  0.274  0.518  1.0
  P  P3  1  0.000  0.687  0.301  1.0
  P  P4  1  0.271  0.733  0.471  1.0
  P  P5  1  0.704  0.742  0.029  1.0
  P  P6  1  0.488  0.301  0.199  1.0
  P  P7  1  0.515  0.693  0.815  1.0
  P  P8  1  0.008  0.331  0.685  1.0
  W  W9  1  0.002  1.000  0.506  1.0
  W  W10  1  0.006  0.508  0.994  1.0
  O  O11  1  0.478  0.464  0.867  1.0
  O  O12  1  0.958  0.359  0.834  1.0
  O  O13  1  0.050  0.672  0.148  1.0
  O  O14  1  0.108  0.290  0.081  1.0
  O  O15  1  0.124  0.801  0.570  1.0
  O  O16  1  0.190  0.685  0.341  1.0
  O  O17  1  0.028  0.140  0.672  1.0
  O  O18  1  0.225  0.514  0.561  1.0
  O  O19  1  0.411  0.207  0.085  1.0
  O  O20  1  0.502  0.856  0.398  1.0
  O  O21  1  0.525  0.530  0.159  1.0
  O  O22  1  0.320  0.199  0.352  1.0
  O  O23  1  0.312  0.700  0.828  1.0
  O  O24  1  0.753  0.899  0.103  1.0
  O  O25  1  0.246  0.092  0.911  1.0
  O  O26  1  0.871  0.189  0.419  1.0
  O  O27  1  0.693  0.791  0.666  1.0
  O  O28  1  0.871  0.694  0.930  1.0
  O  O29  1  0.503  0.157  0.589  1.0
  O  O30  1  0.576  0.787  0.938  1.0
  O  O31  1  0.792  0.496  0.416  1.0
  O  O32  1  0.962  0.871  0.326  1.0
  O  O33  1  0.831  0.345  0.633  1.0
  O  O34  1  0.697  0.288  0.173  1.0
[/CIF]
.
The material structure described by MgP8(WO12)2 crystallizes in the monoclinic C2 space group. Mg(1) is bonded to two equivalent O(10), two equivalent O(12), and two equivalent O(4) atoms to form MgO6 octahedra that share corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(3)O4 tetrahedra, and edges with two equivalent W(1)O6 octahedra. W(1) is bonded to one O(12), one O(2), one O(3), one O(4), one O(5), and one O(7) atom to form WO6 octahedra that share  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(3)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra, corners with two equivalent P(4)O4 tetrahedra, and  an edgeedge with one Mg(1)O6 octahedra. There are four inequivalent P sites. In the first P site, P(1) is bonded to one O(1), one O(11), one O(4), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one W(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 56-57°. In the second P site, P(2) is bonded to one O(12), one O(3), one O(6), and one O(9) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra, corners with two equivalent W(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 28-56°. In the third P site, P(3) is bonded to one O(10), one O(5), one O(6), and one O(8) atom to form PO4 tetrahedra that share  a cornercorner with one Mg(1)O6 octahedra,  a cornercorner with one W(1)O6 octahedra,  a cornercorner with one P(2)O4 tetrahedra, and  a cornercorner with one P(4)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 17-52°. In the fourth P site, P(4) is bonded to one O(1), one O(2), one O(7), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent W(1)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra, and  a cornercorner with one P(3)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 24-53°. There are twelve inequivalent O sites. In the first O site, O(11) is bonded in a single-bond geometry to one P(1) atom. In the second O site, O(12) is bonded in a 3-coordinate geometry to one Mg(1), one W(1), and one P(2) atom. In the third O site, O(1) is bonded in a bent 150 degrees geometry to one P(1) and one P(4) atom. In the fourth O site, O(2) is bonded in a bent 150 degrees geometry to one W(1) and one P(4) atom. In the fifth O site, O(3) is bonded in a bent 150 degrees geometry to one W(1) and one P(2) atom. In the sixth O site, O(4) is bonded in a distorted trigonal planar geometry to one Mg(1), one W(1), and one P(1) atom. In the seventh O site, O(5) is bonded in a distorted bent 120 degrees geometry to one W(1) and one P(3) atom. In the eighth O site, O(6) is bonded in a bent 150 degrees geometry to one P(2) and one P(3) atom. In the ninth O site, O(7) is bonded in a distorted bent 120 degrees geometry to one W(1) and one P(4) atom. In the tenth O site, O(8) is bonded in a bent 120 degrees geometry to one P(3) and one P(4) atom. In the eleventh O site, O(9) is bonded in a bent 150 degrees geometry to one P(1) and one P(2) atom. In the twelfth O site, O(10) is bonded in a linear geometry to one Mg(1) and one P(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgP8(WO12)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.466
_cell_length_b   7.465
_cell_length_c   10.057
_cell_angle_alpha   81.501
_cell_angle_beta   70.767
_cell_angle_gamma   110.934
_symmetry_Int_Tables_number   1
_cell_volume   471.392
_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  0.794  0.044  0.250  1.0
  P  P1  1  0.292  0.249  0.982  1.0
  P  P2  1  0.731  0.274  0.518  1.0
  P  P3  1  0.000  0.687  0.301  1.0
  P  P4  1  0.271  0.733  0.471  1.0
  P  P5  1  0.704  0.742  0.029  1.0
  P  P6  1  0.488  0.301  0.199  1.0
  P  P7  1  0.515  0.693  0.815  1.0
  P  P8  1  0.008  0.331  0.685  1.0
  W  W9  1  0.002  1.000  0.506  1.0
  W  W10  1  0.006  0.508  0.994  1.0
  O  O11  1  0.478  0.464  0.867  1.0
  O  O12  1  0.958  0.359  0.834  1.0
  O  O13  1  0.050  0.672  0.148  1.0
  O  O14  1  0.108  0.290  0.081  1.0
  O  O15  1  0.124  0.801  0.570  1.0
  O  O16  1  0.190  0.685  0.341  1.0
  O  O17  1  0.028  0.140  0.672  1.0
  O  O18  1  0.225  0.514  0.561  1.0
  O  O19  1  0.411  0.207  0.085  1.0
  O  O20  1  0.502  0.856  0.398  1.0
  O  O21  1  0.525  0.530  0.159  1.0
  O  O22  1  0.320  0.199  0.352  1.0
  O  O23  1  0.312  0.700  0.828  1.0
  O  O24  1  0.753  0.899  0.103  1.0
  O  O25  1  0.246  0.092  0.911  1.0
  O  O26  1  0.871  0.189  0.419  1.0
  O  O27  1  0.693  0.791  0.666  1.0
  O  O28  1  0.871  0.694  0.930  1.0
  O  O29  1  0.503  0.157  0.589  1.0
  O  O30  1  0.576  0.787  0.938  1.0
  O  O31  1  0.792  0.496  0.416  1.0
  O  O32  1  0.962  0.871  0.326  1.0
  O  O33  1  0.831  0.345  0.633  1.0
  O  O34  1  0.697  0.288  0.173  1.0
[/CIF]
.