The crystal structure described by K3In is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to four equivalent K(1), four equivalent K(2), and four equivalent In(1) atoms to form distorted KK8In4 cuboctahedra that share corners with twelve equivalent K(1)K8In4 cuboctahedra, edges with eight equivalent K(1)K8In4 cuboctahedra, edges with eight equivalent K(2)K8In4 cuboctahedra, edges with eight equivalent In(1)K12 cuboctahedra, faces with four equivalent K(2)K8In4 cuboctahedra, faces with four equivalent In(1)K12 cuboctahedra, and faces with ten equivalent K(1)K8In4 cuboctahedra. In the second K site, K(2) is bonded to eight equivalent K(1) and four equivalent In(1) atoms to form distorted KK8In4 cuboctahedra that share corners with four equivalent K(2)K8In4 cuboctahedra, corners with eight equivalent In(1)K12 cuboctahedra, edges with eight equivalent K(2)K8In4 cuboctahedra, edges with sixteen equivalent K(1)K8In4 cuboctahedra, faces with four equivalent K(2)K8In4 cuboctahedra, faces with six equivalent In(1)K12 cuboctahedra, and faces with eight equivalent K(1)K8In4 cuboctahedra. In(1) is bonded to four equivalent K(2) and eight equivalent K(1) atoms to form InK12 cuboctahedra that share corners with four equivalent In(1)K12 cuboctahedra, corners with eight equivalent K(2)K8In4 cuboctahedra, edges with eight equivalent In(1)K12 cuboctahedra, edges with sixteen equivalent K(1)K8In4 cuboctahedra, faces with four equivalent In(1)K12 cuboctahedra, faces with six equivalent K(2)K8In4 cuboctahedra, and faces with eight equivalent K(1)K8In4 cuboctahedra. is represented by the CIF file [CIF]
data_K3In
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.163
_cell_length_b   7.163
_cell_length_c   7.163
_cell_angle_alpha   132.315
_cell_angle_beta   132.315
_cell_angle_gamma   69.733
_symmetry_Int_Tables_number   1
_cell_volume   197.104
_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  0.750  0.250  0.500  1.0
  K  K1  1  0.250  0.750  0.500  1.0
  K  K2  1  0.500  0.500  0.000  1.0
  In  In3  1  0.000  0.000  0.000  1.0
[/CIF]
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The crystal structure described by K3In is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to four equivalent K(1), four equivalent K(2), and four equivalent In(1) atoms to form distorted KK8In4 cuboctahedra that share corners with twelve equivalent K(1)K8In4 cuboctahedra, edges with eight equivalent K(1)K8In4 cuboctahedra, edges with eight equivalent K(2)K8In4 cuboctahedra, edges with eight equivalent In(1)K12 cuboctahedra, faces with four equivalent K(2)K8In4 cuboctahedra, faces with four equivalent In(1)K12 cuboctahedra, and faces with ten equivalent K(1)K8In4 cuboctahedra. In the second K site, K(2) is bonded to eight equivalent K(1) and four equivalent In(1) atoms to form distorted KK8In4 cuboctahedra that share corners with four equivalent K(2)K8In4 cuboctahedra, corners with eight equivalent In(1)K12 cuboctahedra, edges with eight equivalent K(2)K8In4 cuboctahedra, edges with sixteen equivalent K(1)K8In4 cuboctahedra, faces with four equivalent K(2)K8In4 cuboctahedra, faces with six equivalent In(1)K12 cuboctahedra, and faces with eight equivalent K(1)K8In4 cuboctahedra. In(1) is bonded to four equivalent K(2) and eight equivalent K(1) atoms to form InK12 cuboctahedra that share corners with four equivalent In(1)K12 cuboctahedra, corners with eight equivalent K(2)K8In4 cuboctahedra, edges with eight equivalent In(1)K12 cuboctahedra, edges with sixteen equivalent K(1)K8In4 cuboctahedra, faces with four equivalent In(1)K12 cuboctahedra, faces with six equivalent K(2)K8In4 cuboctahedra, and faces with eight equivalent K(1)K8In4 cuboctahedra. is represented by the CIF file [CIF]
data_K3In
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.163
_cell_length_b   7.163
_cell_length_c   7.163
_cell_angle_alpha   132.315
_cell_angle_beta   132.315
_cell_angle_gamma   69.733
_symmetry_Int_Tables_number   1
_cell_volume   197.104
_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  0.750  0.250  0.500  1.0
  K  K1  1  0.250  0.750  0.500  1.0
  K  K2  1  0.500  0.500  0.000  1.0
  In  In3  1  0.000  0.000  0.000  1.0
[/CIF]
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