The material described by GaMgMo4O7 crystallizes in the orthorhombic Imma space group. Mg(1) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with four equivalent Ga(1)O4 tetrahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with four equivalent Mo(1)O5 square pyramids. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), two equivalent O(2), and two equivalent O(3) atoms to form MoO5 square pyramids that share corners with three equivalent Ga(1)O4 tetrahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with two equivalent Mo(1)O5 square pyramids. In the second Mo site, Mo(2) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), and two equivalent O(4) atoms. Ga(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form GaO4 tetrahedra that share corners with four equivalent Mg(1)O6 octahedra and corners with six equivalent Mo(1)O5 square pyramids. The corner-sharing octahedral tilt angles are 59°. There are four inequivalent O sites. In the first O site, O(4) is bonded in a square co-planar geometry to four equivalent Mo(2) atoms. In the second O site, O(1) is bonded to two equivalent Mg(1), one Mo(1), and one Ga(1) atom to form a mixture of distorted edge and corner-sharing OMg2GaMo trigonal pyramids. In the third O site, O(2) is bonded in a 4-coordinate geometry to one Mo(2), two equivalent Mo(1), and one Ga(1) atom. In the fourth O site, O(3) is bonded in a see-saw-like geometry to one Mg(1), one Mo(2), and two equivalent Mo(1) atoms. is represented by the CIF card [CIF]
data_MgGaMo4O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.454
_cell_length_b   9.454
_cell_length_c   9.454
_cell_angle_alpha   144.081
_cell_angle_beta   142.075
_cell_angle_gamma   53.226
_symmetry_Int_Tables_number   1
_cell_volume   302.726
_cell_formula_units_Z   2
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  0.000  0.500  0.500  1.0
  Mg  Mg1  1  0.500  0.500  0.000  1.0
  Ga  Ga2  1  0.695  0.945  0.750  1.0
  Ga  Ga3  1  0.305  0.055  0.250  1.0
  Mo  Mo4  1  0.113  0.635  0.022  1.0
  Mo  Mo5  1  0.227  0.746  0.480  1.0
  Mo  Mo6  1  0.773  0.254  0.520  1.0
  Mo  Mo7  1  0.887  0.365  0.978  1.0
  Mo  Mo8  1  0.234  0.254  0.980  1.0
  Mo  Mo9  1  0.113  0.091  0.478  1.0
  Mo  Mo10  1  0.887  0.909  0.522  1.0
  Mo  Mo11  1  0.766  0.746  0.020  1.0
  O  O12  1  0.242  0.250  0.508  1.0
  O  O13  1  0.242  0.735  0.992  1.0
  O  O14  1  0.610  0.127  0.483  1.0
  O  O15  1  0.099  0.624  0.475  1.0
  O  O16  1  0.901  0.376  0.525  1.0
  O  O17  1  0.856  0.873  0.983  1.0
  O  O18  1  0.390  0.873  0.517  1.0
  O  O19  1  0.144  0.127  0.017  1.0
  O  O20  1  0.500  0.000  0.000  1.0
  O  O21  1  0.649  0.624  0.025  1.0
  O  O22  1  0.351  0.376  0.975  1.0
  O  O23  1  0.758  0.750  0.492  1.0
  O  O24  1  0.758  0.265  0.008  1.0
  O  O25  1  0.500  0.500  0.500  1.0
[/CIF]
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The material described by GaMgMo4O7 crystallizes in the orthorhombic Imma space group. Mg(1) is bonded to two equivalent O(3) and four equivalent O(1) atoms to form MgO6 octahedra that share corners with four equivalent Ga(1)O4 tetrahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with four equivalent Mo(1)O5 square pyramids. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), two equivalent O(2), and two equivalent O(3) atoms to form MoO5 square pyramids that share corners with three equivalent Ga(1)O4 tetrahedra, edges with two equivalent Mg(1)O6 octahedra, and edges with two equivalent Mo(1)O5 square pyramids. In the second Mo site, Mo(2) is bonded in a rectangular see-saw-like geometry to one O(2), one O(3), and two equivalent O(4) atoms. Ga(1) is bonded to two equivalent O(1) and two equivalent O(2) atoms to form GaO4 tetrahedra that share corners with four equivalent Mg(1)O6 octahedra and corners with six equivalent Mo(1)O5 square pyramids. The corner-sharing octahedral tilt angles are 59°. There are four inequivalent O sites. In the first O site, O(4) is bonded in a square co-planar geometry to four equivalent Mo(2) atoms. In the second O site, O(1) is bonded to two equivalent Mg(1), one Mo(1), and one Ga(1) atom to form a mixture of distorted edge and corner-sharing OMg2GaMo trigonal pyramids. In the third O site, O(2) is bonded in a 4-coordinate geometry to one Mo(2), two equivalent Mo(1), and one Ga(1) atom. In the fourth O site, O(3) is bonded in a see-saw-like geometry to one Mg(1), one Mo(2), and two equivalent Mo(1) atoms. is represented by the CIF card [CIF]
data_MgGaMo4O7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.454
_cell_length_b   9.454
_cell_length_c   9.454
_cell_angle_alpha   144.081
_cell_angle_beta   142.075
_cell_angle_gamma   53.226
_symmetry_Int_Tables_number   1
_cell_volume   302.726
_cell_formula_units_Z   2
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  0.000  0.500  0.500  1.0
  Mg  Mg1  1  0.500  0.500  0.000  1.0
  Ga  Ga2  1  0.695  0.945  0.750  1.0
  Ga  Ga3  1  0.305  0.055  0.250  1.0
  Mo  Mo4  1  0.113  0.635  0.022  1.0
  Mo  Mo5  1  0.227  0.746  0.480  1.0
  Mo  Mo6  1  0.773  0.254  0.520  1.0
  Mo  Mo7  1  0.887  0.365  0.978  1.0
  Mo  Mo8  1  0.234  0.254  0.980  1.0
  Mo  Mo9  1  0.113  0.091  0.478  1.0
  Mo  Mo10  1  0.887  0.909  0.522  1.0
  Mo  Mo11  1  0.766  0.746  0.020  1.0
  O  O12  1  0.242  0.250  0.508  1.0
  O  O13  1  0.242  0.735  0.992  1.0
  O  O14  1  0.610  0.127  0.483  1.0
  O  O15  1  0.099  0.624  0.475  1.0
  O  O16  1  0.901  0.376  0.525  1.0
  O  O17  1  0.856  0.873  0.983  1.0
  O  O18  1  0.390  0.873  0.517  1.0
  O  O19  1  0.144  0.127  0.017  1.0
  O  O20  1  0.500  0.000  0.000  1.0
  O  O21  1  0.649  0.624  0.025  1.0
  O  O22  1  0.351  0.376  0.975  1.0
  O  O23  1  0.758  0.750  0.492  1.0
  O  O24  1  0.758  0.265  0.008  1.0
  O  O25  1  0.500  0.500  0.500  1.0
[/CIF]
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