The crystal structure described by K3Hf is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. K(1) is bonded to eight equivalent K(1) and four equivalent Hf(1) atoms to form distorted KK8Hf4 cuboctahedra that share corners with twelve equivalent K(1)K8Hf4 cuboctahedra, edges with eight equivalent Hf(1)K12 cuboctahedra, edges with sixteen equivalent K(1)K8Hf4 cuboctahedra, faces with four equivalent Hf(1)K12 cuboctahedra, and faces with fourteen equivalent K(1)K8Hf4 cuboctahedra. Hf(1) is bonded to twelve equivalent K(1) atoms to form HfK12 cuboctahedra that share corners with twelve equivalent Hf(1)K12 cuboctahedra, edges with twenty-four equivalent K(1)K8Hf4 cuboctahedra, faces with six equivalent Hf(1)K12 cuboctahedra, and faces with twelve equivalent K(1)K8Hf4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_K3Hf
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.788
_cell_length_b   5.788
_cell_length_c   5.788
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   193.864
_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  0.500  0.500  1.0
  K  K1  1  0.500  0.500  0.000  1.0
  K  K2  1  0.500  0.000  0.500  1.0
  Hf  Hf3  1  0.000  0.000  0.000  1.0
[/CIF]
.
The crystal structure described by K3Hf is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. K(1) is bonded to eight equivalent K(1) and four equivalent Hf(1) atoms to form distorted KK8Hf4 cuboctahedra that share corners with twelve equivalent K(1)K8Hf4 cuboctahedra, edges with eight equivalent Hf(1)K12 cuboctahedra, edges with sixteen equivalent K(1)K8Hf4 cuboctahedra, faces with four equivalent Hf(1)K12 cuboctahedra, and faces with fourteen equivalent K(1)K8Hf4 cuboctahedra. Hf(1) is bonded to twelve equivalent K(1) atoms to form HfK12 cuboctahedra that share corners with twelve equivalent Hf(1)K12 cuboctahedra, edges with twenty-four equivalent K(1)K8Hf4 cuboctahedra, faces with six equivalent Hf(1)K12 cuboctahedra, and faces with twelve equivalent K(1)K8Hf4 cuboctahedra. is represented by the Crystallographic Information File (CIF) [CIF]
data_K3Hf
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.788
_cell_length_b   5.788
_cell_length_c   5.788
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   193.864
_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  0.500  0.500  1.0
  K  K1  1  0.500  0.500  0.000  1.0
  K  K2  1  0.500  0.000  0.500  1.0
  Hf  Hf3  1  0.000  0.000  0.000  1.0
[/CIF]
.