The structure described by Ba3Ce is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Ba(1) is bonded to eight equivalent Ba(1) and four equivalent Ce(1) atoms to form distorted BaBa8Ce4 cuboctahedra that share corners with four equivalent Ce(1)Ba12 cuboctahedra, corners with fourteen equivalent Ba(1)Ba8Ce4 cuboctahedra, edges with six equivalent Ce(1)Ba12 cuboctahedra, edges with twelve equivalent Ba(1)Ba8Ce4 cuboctahedra, faces with four equivalent Ce(1)Ba12 cuboctahedra, and faces with sixteen equivalent Ba(1)Ba8Ce4 cuboctahedra. Ce(1) is bonded to twelve equivalent Ba(1) atoms to form CeBa12 cuboctahedra that share corners with six equivalent Ce(1)Ba12 cuboctahedra, corners with twelve equivalent Ba(1)Ba8Ce4 cuboctahedra, edges with eighteen equivalent Ba(1)Ba8Ce4 cuboctahedra, faces with eight equivalent Ce(1)Ba12 cuboctahedra, and faces with twelve equivalent Ba(1)Ba8Ce4 cuboctahedra. is represented by the CIF file [CIF]
data_Ba3Ce
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.688
_cell_length_b   8.688
_cell_length_c   6.938
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   453.491
_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
  Ba  Ba0  1  0.172  0.343  0.250  1.0
  Ba  Ba1  1  0.657  0.828  0.250  1.0
  Ba  Ba2  1  0.172  0.828  0.250  1.0
  Ba  Ba3  1  0.828  0.657  0.750  1.0
  Ba  Ba4  1  0.343  0.172  0.750  1.0
  Ba  Ba5  1  0.828  0.172  0.750  1.0
  Ce  Ce6  1  0.333  0.667  0.750  1.0
  Ce  Ce7  1  0.667  0.333  0.250  1.0
[/CIF]
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The structure described by Ba3Ce is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Ba(1) is bonded to eight equivalent Ba(1) and four equivalent Ce(1) atoms to form distorted BaBa8Ce4 cuboctahedra that share corners with four equivalent Ce(1)Ba12 cuboctahedra, corners with fourteen equivalent Ba(1)Ba8Ce4 cuboctahedra, edges with six equivalent Ce(1)Ba12 cuboctahedra, edges with twelve equivalent Ba(1)Ba8Ce4 cuboctahedra, faces with four equivalent Ce(1)Ba12 cuboctahedra, and faces with sixteen equivalent Ba(1)Ba8Ce4 cuboctahedra. Ce(1) is bonded to twelve equivalent Ba(1) atoms to form CeBa12 cuboctahedra that share corners with six equivalent Ce(1)Ba12 cuboctahedra, corners with twelve equivalent Ba(1)Ba8Ce4 cuboctahedra, edges with eighteen equivalent Ba(1)Ba8Ce4 cuboctahedra, faces with eight equivalent Ce(1)Ba12 cuboctahedra, and faces with twelve equivalent Ba(1)Ba8Ce4 cuboctahedra. is represented by the CIF file [CIF]
data_Ba3Ce
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.688
_cell_length_b   8.688
_cell_length_c   6.938
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   453.491
_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
  Ba  Ba0  1  0.172  0.343  0.250  1.0
  Ba  Ba1  1  0.657  0.828  0.250  1.0
  Ba  Ba2  1  0.172  0.828  0.250  1.0
  Ba  Ba3  1  0.828  0.657  0.750  1.0
  Ba  Ba4  1  0.343  0.172  0.750  1.0
  Ba  Ba5  1  0.828  0.172  0.750  1.0
  Ce  Ce6  1  0.333  0.667  0.750  1.0
  Ce  Ce7  1  0.667  0.333  0.250  1.0
[/CIF]
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