The structure described by Ce3Sn3Ge2 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 9-coordinate geometry to three equivalent Sn(1), three equivalent Sn(2), and three equivalent Ge(1) atoms. In the second Ce site, Ce(2) is bonded to six equivalent Sn(1) and six equivalent Ge(1) atoms to form face-sharing CeSn6Ge6 cuboctahedra. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to three equivalent Ce(1), three equivalent Ce(2), and three equivalent Ge(1) atoms. In the second Sn site, Sn(2) is bonded to six equivalent Ce(1) atoms to form edge-sharing SnCe6 octahedra. Ge(1) is bonded in a 9-coordinate geometry to three equivalent Ce(1), three equivalent Ce(2), and three equivalent Sn(1) atoms. is represented by the CIF file [CIF]
data_Ce3Sn3Ge2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.649
_cell_length_b   4.649
_cell_length_c   23.346
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   436.924
_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
  Ce  Ce0  1  0.333  0.667  0.075  1.0
  Ce  Ce1  1  0.667  0.333  0.925  1.0
  Ce  Ce2  1  0.667  0.333  0.575  1.0
  Ce  Ce3  1  0.333  0.667  0.425  1.0
  Ce  Ce4  1  0.333  0.667  0.250  1.0
  Ce  Ce5  1  0.667  0.333  0.750  1.0
  Sn  Sn6  1  0.333  0.667  0.658  1.0
  Sn  Sn7  1  0.667  0.333  0.342  1.0
  Sn  Sn8  1  0.667  0.333  0.158  1.0
  Sn  Sn9  1  0.333  0.667  0.842  1.0
  Sn  Sn10  1  0.000  0.000  0.000  1.0
  Sn  Sn11  1  0.000  0.000  0.500  1.0
  Ge  Ge12  1  0.000  0.000  0.168  1.0
  Ge  Ge13  1  0.000  0.000  0.832  1.0
  Ge  Ge14  1  0.000  0.000  0.668  1.0
  Ge  Ge15  1  0.000  0.000  0.332  1.0
[/CIF]
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The structure described by Ce3Sn3Ge2 crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Ce sites. In the first Ce site, Ce(1) is bonded in a 9-coordinate geometry to three equivalent Sn(1), three equivalent Sn(2), and three equivalent Ge(1) atoms. In the second Ce site, Ce(2) is bonded to six equivalent Sn(1) and six equivalent Ge(1) atoms to form face-sharing CeSn6Ge6 cuboctahedra. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to three equivalent Ce(1), three equivalent Ce(2), and three equivalent Ge(1) atoms. In the second Sn site, Sn(2) is bonded to six equivalent Ce(1) atoms to form edge-sharing SnCe6 octahedra. Ge(1) is bonded in a 9-coordinate geometry to three equivalent Ce(1), three equivalent Ce(2), and three equivalent Sn(1) atoms. is represented by the CIF file [CIF]
data_Ce3Sn3Ge2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.649
_cell_length_b   4.649
_cell_length_c   23.346
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   436.924
_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
  Ce  Ce0  1  0.333  0.667  0.075  1.0
  Ce  Ce1  1  0.667  0.333  0.925  1.0
  Ce  Ce2  1  0.667  0.333  0.575  1.0
  Ce  Ce3  1  0.333  0.667  0.425  1.0
  Ce  Ce4  1  0.333  0.667  0.250  1.0
  Ce  Ce5  1  0.667  0.333  0.750  1.0
  Sn  Sn6  1  0.333  0.667  0.658  1.0
  Sn  Sn7  1  0.667  0.333  0.342  1.0
  Sn  Sn8  1  0.667  0.333  0.158  1.0
  Sn  Sn9  1  0.333  0.667  0.842  1.0
  Sn  Sn10  1  0.000  0.000  0.000  1.0
  Sn  Sn11  1  0.000  0.000  0.500  1.0
  Ge  Ge12  1  0.000  0.000  0.168  1.0
  Ge  Ge13  1  0.000  0.000  0.832  1.0
  Ge  Ge14  1  0.000  0.000  0.668  1.0
  Ge  Ge15  1  0.000  0.000  0.332  1.0
[/CIF]
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