The compound described by K4Mg(MoO4)2 crystallizes in the triclinic P1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(7) atom. In the second K site, K(2) is bonded in a rectangular see-saw-like geometry to one O(2), one O(5), one O(7), and one O(8) atom. In the third K site, K(3) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(5), one O(6), and two equivalent O(8) atoms. In the fourth K site, K(4) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), and two equivalent O(7) atoms. Mg(1) is bonded to one O(1), one O(3), one O(4), and one O(8) atom to form MgO4 tetrahedra that share corners with two equivalent Mo(1)O4 tetrahedra and  an edgeedge with one Mo(2)O4 tetrahedra. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(4), one O(6), and one O(7) atom to form MoO4 tetrahedra that share corners with two equivalent Mg(1)O4 tetrahedra. In the second Mo site, Mo(2) is bonded to one O(2), one O(3), one O(5), and one O(8) atom to form MoO4 tetrahedra that share  an edgeedge with one Mg(1)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one K(1), one K(3), one Mg(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a tetrahedral geometry to one K(1), one K(2), one K(3), and one Mo(2) atom. In the third O site, O(3) is bonded in a distorted see-saw-like geometry to one K(1), one K(4), one Mg(1), and one Mo(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one K(1), one K(4), one Mg(1), and one Mo(1) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one K(2), one K(3), one K(4), and one Mo(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one K(3), one K(4), and one Mo(1) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one K(1), one K(2), two equivalent K(4), and one Mo(1) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one K(2), two equivalent K(3), one Mg(1), and one Mo(2) atom. is represented by the CIF card [CIF]
data_K4Mg(MoO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.039
_cell_length_b   6.909
_cell_length_c   8.260
_cell_angle_alpha   101.284
_cell_angle_beta   88.747
_cell_angle_gamma   114.341
_symmetry_Int_Tables_number   1
_cell_volume   307.271
_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
  K  K0  1  0.470  0.902  0.088  1.0
  K  K1  1  0.497  0.959  0.587  1.0
  K  K2  1  0.149  0.290  0.728  1.0
  K  K3  1  0.881  0.749  0.339  1.0
  Mg  Mg4  1  0.634  0.395  0.009  1.0
  Mo  Mo5  1  0.128  0.353  0.236  1.0
  Mo  Mo6  1  0.903  0.682  0.797  1.0
  O  O7  1  0.292  0.273  0.052  1.0
  O  O8  1  0.217  0.714  0.797  1.0
  O  O9  1  0.792  0.714  0.016  1.0
  O  O10  1  0.814  0.321  0.163  1.0
  O  O11  1  0.827  0.834  0.668  1.0
  O  O12  1  0.083  0.173  0.382  1.0
  O  O13  1  0.299  0.650  0.311  1.0
  O  O14  1  0.702  0.371  0.768  1.0
[/CIF]
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The compound described by K4Mg(MoO4)2 crystallizes in the triclinic P1 space group. There are four inequivalent K sites. In the first K site, K(1) is bonded in a 5-coordinate geometry to one O(1), one O(2), one O(3), one O(4), and one O(7) atom. In the second K site, K(2) is bonded in a rectangular see-saw-like geometry to one O(2), one O(5), one O(7), and one O(8) atom. In the third K site, K(3) is bonded in a 6-coordinate geometry to one O(1), one O(2), one O(5), one O(6), and two equivalent O(8) atoms. In the fourth K site, K(4) is bonded in a 6-coordinate geometry to one O(3), one O(4), one O(5), one O(6), and two equivalent O(7) atoms. Mg(1) is bonded to one O(1), one O(3), one O(4), and one O(8) atom to form MgO4 tetrahedra that share corners with two equivalent Mo(1)O4 tetrahedra and  an edgeedge with one Mo(2)O4 tetrahedra. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to one O(1), one O(4), one O(6), and one O(7) atom to form MoO4 tetrahedra that share corners with two equivalent Mg(1)O4 tetrahedra. In the second Mo site, Mo(2) is bonded to one O(2), one O(3), one O(5), and one O(8) atom to form MoO4 tetrahedra that share  an edgeedge with one Mg(1)O4 tetrahedra. There are eight inequivalent O sites. In the first O site, O(1) is bonded in a 4-coordinate geometry to one K(1), one K(3), one Mg(1), and one Mo(1) atom. In the second O site, O(2) is bonded in a tetrahedral geometry to one K(1), one K(2), one K(3), and one Mo(2) atom. In the third O site, O(3) is bonded in a distorted see-saw-like geometry to one K(1), one K(4), one Mg(1), and one Mo(2) atom. In the fourth O site, O(4) is bonded in a 4-coordinate geometry to one K(1), one K(4), one Mg(1), and one Mo(1) atom. In the fifth O site, O(5) is bonded in a distorted rectangular see-saw-like geometry to one K(2), one K(3), one K(4), and one Mo(2) atom. In the sixth O site, O(6) is bonded in a distorted trigonal planar geometry to one K(3), one K(4), and one Mo(1) atom. In the seventh O site, O(7) is bonded in a 5-coordinate geometry to one K(1), one K(2), two equivalent K(4), and one Mo(1) atom. In the eighth O site, O(8) is bonded in a 5-coordinate geometry to one K(2), two equivalent K(3), one Mg(1), and one Mo(2) atom. is represented by the CIF card [CIF]
data_K4Mg(MoO4)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.039
_cell_length_b   6.909
_cell_length_c   8.260
_cell_angle_alpha   101.284
_cell_angle_beta   88.747
_cell_angle_gamma   114.341
_symmetry_Int_Tables_number   1
_cell_volume   307.271
_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
  K  K0  1  0.470  0.902  0.088  1.0
  K  K1  1  0.497  0.959  0.587  1.0
  K  K2  1  0.149  0.290  0.728  1.0
  K  K3  1  0.881  0.749  0.339  1.0
  Mg  Mg4  1  0.634  0.395  0.009  1.0
  Mo  Mo5  1  0.128  0.353  0.236  1.0
  Mo  Mo6  1  0.903  0.682  0.797  1.0
  O  O7  1  0.292  0.273  0.052  1.0
  O  O8  1  0.217  0.714  0.797  1.0
  O  O9  1  0.792  0.714  0.016  1.0
  O  O10  1  0.814  0.321  0.163  1.0
  O  O11  1  0.827  0.834  0.668  1.0
  O  O12  1  0.083  0.173  0.382  1.0
  O  O13  1  0.299  0.650  0.311  1.0
  O  O14  1  0.702  0.371  0.768  1.0
[/CIF]
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