The crystal structure described by SmZnGe crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to six equivalent Zn(1) and six equivalent Ge(1) atoms to form a mixture of distorted face and edge-sharing SmZn6Ge6 cuboctahedra. In the second Sm site, Sm(2) is bonded to six equivalent Zn(1) and six equivalent Ge(1) atoms to form a mixture of distorted face and edge-sharing SmZn6Ge6 cuboctahedra. Zn(1) is bonded in a 9-coordinate geometry to three equivalent Sm(1), three equivalent Sm(2), and three equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to three equivalent Sm(1), three equivalent Sm(2), and three equivalent Zn(1) atoms. is represented by the CIF file [CIF]
data_SmZnGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.230
_cell_length_b   4.230
_cell_length_c   16.313
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   252.749
_cell_formula_units_Z   4
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
  Sm  Sm0  1  0.000  0.000  0.250  1.0
  Sm  Sm1  1  0.000  0.000  0.750  1.0
  Sm  Sm2  1  0.000  0.000  0.000  1.0
  Sm  Sm3  1  0.000  0.000  0.500  1.0
  Zn  Zn4  1  0.333  0.667  0.143  1.0
  Zn  Zn5  1  0.667  0.333  0.857  1.0
  Zn  Zn6  1  0.667  0.333  0.643  1.0
  Zn  Zn7  1  0.333  0.667  0.357  1.0
  Ge  Ge8  1  0.333  0.667  0.616  1.0
  Ge  Ge9  1  0.667  0.333  0.384  1.0
  Ge  Ge10  1  0.667  0.333  0.116  1.0
  Ge  Ge11  1  0.333  0.667  0.884  1.0
[/CIF]
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The crystal structure described by SmZnGe crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to six equivalent Zn(1) and six equivalent Ge(1) atoms to form a mixture of distorted face and edge-sharing SmZn6Ge6 cuboctahedra. In the second Sm site, Sm(2) is bonded to six equivalent Zn(1) and six equivalent Ge(1) atoms to form a mixture of distorted face and edge-sharing SmZn6Ge6 cuboctahedra. Zn(1) is bonded in a 9-coordinate geometry to three equivalent Sm(1), three equivalent Sm(2), and three equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to three equivalent Sm(1), three equivalent Sm(2), and three equivalent Zn(1) atoms. is represented by the CIF file [CIF]
data_SmZnGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.230
_cell_length_b   4.230
_cell_length_c   16.313
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   252.749
_cell_formula_units_Z   4
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
  Sm  Sm0  1  0.000  0.000  0.250  1.0
  Sm  Sm1  1  0.000  0.000  0.750  1.0
  Sm  Sm2  1  0.000  0.000  0.000  1.0
  Sm  Sm3  1  0.000  0.000  0.500  1.0
  Zn  Zn4  1  0.333  0.667  0.143  1.0
  Zn  Zn5  1  0.667  0.333  0.857  1.0
  Zn  Zn6  1  0.667  0.333  0.643  1.0
  Zn  Zn7  1  0.333  0.667  0.357  1.0
  Ge  Ge8  1  0.333  0.667  0.616  1.0
  Ge  Ge9  1  0.667  0.333  0.384  1.0
  Ge  Ge10  1  0.667  0.333  0.116  1.0
  Ge  Ge11  1  0.333  0.667  0.884  1.0
[/CIF]
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