The compound described by KMg6W crystallizes in the tetragonal P4/mmm space group. K(1) is bonded to four equivalent Mg(1) and eight equivalent Mg(2) atoms to form KMg12 cuboctahedra that share corners with four equivalent K(1)Mg12 cuboctahedra, corners with eight equivalent W(1)Mg12 cuboctahedra, edges with eight equivalent Mg(1)K2Mg8W2 cuboctahedra, faces with two equivalent K(1)Mg12 cuboctahedra, faces with four equivalent Mg(1)K2Mg8W2 cuboctahedra, and faces with four equivalent W(1)Mg12 cuboctahedra. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent K(1), eight equivalent Mg(2), and two equivalent W(1) atoms to form distorted MgK2Mg8W2 cuboctahedra that share corners with twelve equivalent Mg(1)K2Mg8W2 cuboctahedra, edges with four equivalent K(1)Mg12 cuboctahedra, edges with four equivalent W(1)Mg12 cuboctahedra, faces with two equivalent K(1)Mg12 cuboctahedra, faces with two equivalent W(1)Mg12 cuboctahedra, and faces with six equivalent Mg(1)K2Mg8W2 cuboctahedra. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to two equivalent K(1), two equivalent Mg(2), four equivalent Mg(1), and two equivalent W(1) atoms. W(1) is bonded to four equivalent Mg(1) and eight equivalent Mg(2) atoms to form WMg12 cuboctahedra that share corners with four equivalent W(1)Mg12 cuboctahedra, corners with eight equivalent K(1)Mg12 cuboctahedra, edges with eight equivalent Mg(1)K2Mg8W2 cuboctahedra, faces with two equivalent W(1)Mg12 cuboctahedra, faces with four equivalent K(1)Mg12 cuboctahedra, and faces with four equivalent Mg(1)K2Mg8W2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_KMg6W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.552
_cell_length_b   6.552
_cell_length_c   4.384
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   188.218
_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  0.000  0.000  0.000  1.0
  Mg  Mg1  1  0.000  0.500  0.000  1.0
  Mg  Mg2  1  0.500  0.000  0.000  1.0
  Mg  Mg3  1  0.714  0.286  0.500  1.0
  Mg  Mg4  1  0.286  0.714  0.500  1.0
  Mg  Mg5  1  0.714  0.714  0.500  1.0
  Mg  Mg6  1  0.286  0.286  0.500  1.0
  W  W7  1  0.500  0.500  0.000  1.0
[/CIF]
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The compound described by KMg6W crystallizes in the tetragonal P4/mmm space group. K(1) is bonded to four equivalent Mg(1) and eight equivalent Mg(2) atoms to form KMg12 cuboctahedra that share corners with four equivalent K(1)Mg12 cuboctahedra, corners with eight equivalent W(1)Mg12 cuboctahedra, edges with eight equivalent Mg(1)K2Mg8W2 cuboctahedra, faces with two equivalent K(1)Mg12 cuboctahedra, faces with four equivalent Mg(1)K2Mg8W2 cuboctahedra, and faces with four equivalent W(1)Mg12 cuboctahedra. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded to two equivalent K(1), eight equivalent Mg(2), and two equivalent W(1) atoms to form distorted MgK2Mg8W2 cuboctahedra that share corners with twelve equivalent Mg(1)K2Mg8W2 cuboctahedra, edges with four equivalent K(1)Mg12 cuboctahedra, edges with four equivalent W(1)Mg12 cuboctahedra, faces with two equivalent K(1)Mg12 cuboctahedra, faces with two equivalent W(1)Mg12 cuboctahedra, and faces with six equivalent Mg(1)K2Mg8W2 cuboctahedra. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to two equivalent K(1), two equivalent Mg(2), four equivalent Mg(1), and two equivalent W(1) atoms. W(1) is bonded to four equivalent Mg(1) and eight equivalent Mg(2) atoms to form WMg12 cuboctahedra that share corners with four equivalent W(1)Mg12 cuboctahedra, corners with eight equivalent K(1)Mg12 cuboctahedra, edges with eight equivalent Mg(1)K2Mg8W2 cuboctahedra, faces with two equivalent W(1)Mg12 cuboctahedra, faces with four equivalent K(1)Mg12 cuboctahedra, and faces with four equivalent Mg(1)K2Mg8W2 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_KMg6W
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.552
_cell_length_b   6.552
_cell_length_c   4.384
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   188.218
_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  0.000  0.000  0.000  1.0
  Mg  Mg1  1  0.000  0.500  0.000  1.0
  Mg  Mg2  1  0.500  0.000  0.000  1.0
  Mg  Mg3  1  0.714  0.286  0.500  1.0
  Mg  Mg4  1  0.286  0.714  0.500  1.0
  Mg  Mg5  1  0.714  0.714  0.500  1.0
  Mg  Mg6  1  0.286  0.286  0.500  1.0
  W  W7  1  0.500  0.500  0.000  1.0
[/CIF]
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