The compound described by MgMo2(PO5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(10), one O(2), one O(5), one O(7), and one O(9) atom to form distorted MgO5 trigonal bipyramids that share  a cornercorner with one Mo(1)O6 octahedra,  a cornercorner with one Mo(2)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  an edgeedge with one Mo(1)O6 octahedra,  an edgeedge with one Mo(2)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-59°. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(10), one O(2), one O(3), one O(6), and one O(7) atom to form MoO6 octahedra that share corners with two equivalent Mo(2)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 29-45°. In the second Mo site, Mo(2) is bonded to one O(1), one O(2), one O(4), one O(5), one O(8), and one O(9) atom to form MoO6 octahedra that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 29-45°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(3), one O(5), one O(7), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Mo(2)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 29-51°. In the second P site, P(2) is bonded to one O(10), one O(4), one O(6), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Mo(2)O6 octahedra, and  a cornercorner with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 21-47°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mo(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mo(1), and one Mo(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Mo(2) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Mg(1), one Mo(2), and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Mo(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Mg(1), one Mo(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(2) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mo(2), and one P(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Mg(1), one Mo(1), and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMo2(PO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.589
_cell_length_b   5.366
_cell_length_c   7.625
_cell_angle_alpha   70.820
_cell_angle_beta   69.440
_cell_angle_gamma   96.054
_symmetry_Int_Tables_number   1
_cell_volume   195.838
_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  0.385  0.252  0.256  1.0
  Mo  Mo1  1  0.219  0.747  0.015  1.0
  Mo  Mo2  1  0.739  0.238  0.527  1.0
  P  P3  1  0.617  0.824  0.264  1.0
  P  P4  1  0.839  0.647  0.782  1.0
  O  O5  1  0.423  0.053  0.770  1.0
  O  O6  1  0.073  0.397  0.272  1.0
  O  O7  1  0.907  0.909  0.113  1.0
  O  O8  1  0.927  0.958  0.653  1.0
  O  O9  1  0.580  0.991  0.401  1.0
  O  O10  1  0.024  0.562  0.886  1.0
  O  O11  1  0.425  0.921  0.164  1.0
  O  O12  1  0.851  0.502  0.637  1.0
  O  O13  1  0.532  0.508  0.379  1.0
  O  O14  1  0.550  0.556  0.956  1.0
[/CIF]
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The compound described by MgMo2(PO5)2 crystallizes in the triclinic P1 space group. Mg(1) is bonded to one O(10), one O(2), one O(5), one O(7), and one O(9) atom to form distorted MgO5 trigonal bipyramids that share  a cornercorner with one Mo(1)O6 octahedra,  a cornercorner with one Mo(2)O6 octahedra,  a cornercorner with one P(1)O4 tetrahedra,  a cornercorner with one P(2)O4 tetrahedra,  an edgeedge with one Mo(1)O6 octahedra,  an edgeedge with one Mo(2)O6 octahedra, and  an edgeedge with one P(1)O4 tetrahedra. The corner-sharing octahedral tilt angles range from 49-59°. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(10), one O(2), one O(3), one O(6), and one O(7) atom to form MoO6 octahedra that share corners with two equivalent Mo(2)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 29-45°. In the second Mo site, Mo(2) is bonded to one O(1), one O(2), one O(4), one O(5), one O(8), and one O(9) atom to form MoO6 octahedra that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent P(1)O4 tetrahedra, corners with two equivalent P(2)O4 tetrahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 29-45°. There are two inequivalent P sites. In the first P site, P(1) is bonded to one O(3), one O(5), one O(7), and one O(9) atom to form PO4 tetrahedra that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Mo(2)O6 octahedra,  a cornercorner with one Mg(1)O5 trigonal bipyramid, and  an edgeedge with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 29-51°. In the second P site, P(2) is bonded to one O(10), one O(4), one O(6), and one O(8) atom to form PO4 tetrahedra that share corners with two equivalent Mo(1)O6 octahedra, corners with two equivalent Mo(2)O6 octahedra, and  a cornercorner with one Mg(1)O5 trigonal bipyramid. The corner-sharing octahedral tilt angles range from 21-47°. There are ten inequivalent O sites. In the first O site, O(1) is bonded in a bent 150 degrees geometry to one Mo(1) and one Mo(2) atom. In the second O site, O(2) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mo(1), and one Mo(2) atom. In the third O site, O(3) is bonded in a bent 150 degrees geometry to one Mo(1) and one P(1) atom. In the fourth O site, O(4) is bonded in a distorted bent 120 degrees geometry to one Mo(2) and one P(2) atom. In the fifth O site, O(5) is bonded in a distorted T-shaped geometry to one Mg(1), one Mo(2), and one P(1) atom. In the sixth O site, O(6) is bonded in a distorted bent 120 degrees geometry to one Mo(1) and one P(2) atom. In the seventh O site, O(7) is bonded in a 3-coordinate geometry to one Mg(1), one Mo(1), and one P(1) atom. In the eighth O site, O(8) is bonded in a bent 150 degrees geometry to one Mo(2) and one P(2) atom. In the ninth O site, O(9) is bonded in a distorted trigonal planar geometry to one Mg(1), one Mo(2), and one P(1) atom. In the tenth O site, O(10) is bonded in a 3-coordinate geometry to one Mg(1), one Mo(1), and one P(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_MgMo2(PO5)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.589
_cell_length_b   5.366
_cell_length_c   7.625
_cell_angle_alpha   70.820
_cell_angle_beta   69.440
_cell_angle_gamma   96.054
_symmetry_Int_Tables_number   1
_cell_volume   195.838
_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  0.385  0.252  0.256  1.0
  Mo  Mo1  1  0.219  0.747  0.015  1.0
  Mo  Mo2  1  0.739  0.238  0.527  1.0
  P  P3  1  0.617  0.824  0.264  1.0
  P  P4  1  0.839  0.647  0.782  1.0
  O  O5  1  0.423  0.053  0.770  1.0
  O  O6  1  0.073  0.397  0.272  1.0
  O  O7  1  0.907  0.909  0.113  1.0
  O  O8  1  0.927  0.958  0.653  1.0
  O  O9  1  0.580  0.991  0.401  1.0
  O  O10  1  0.024  0.562  0.886  1.0
  O  O11  1  0.425  0.921  0.164  1.0
  O  O12  1  0.851  0.502  0.637  1.0
  O  O13  1  0.532  0.508  0.379  1.0
  O  O14  1  0.550  0.556  0.956  1.0
[/CIF]
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