The material described by Pr2(Zn2Ge)3 crystallizes in the hexagonal P-62m space group. Pr(1) is bonded in a 15-coordinate geometry to three equivalent Zn(2), six equivalent Zn(1), and six equivalent Ge(1) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 3-coordinate geometry to four equivalent Pr(1) and three equivalent Ge(1) atoms. In the second Zn site, Zn(2) is bonded in a 2-coordinate geometry to two equivalent Pr(1) and two equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Pr(1), two equivalent Zn(2), and three equivalent Zn(1) atoms. is represented by the CIF file [CIF]
data_Pr2(Zn2Ge)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.620
_cell_length_b   7.620
_cell_length_c   4.104
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   206.393
_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
  Pr  Pr0  1  0.667  0.333  0.000  1.0
  Pr  Pr1  1  0.333  0.667  0.000  1.0
  Zn  Zn2  1  0.711  0.000  0.500  1.0
  Zn  Zn3  1  0.000  0.711  0.500  1.0
  Zn  Zn4  1  0.188  0.000  0.000  1.0
  Zn  Zn5  1  0.812  0.812  0.000  1.0
  Zn  Zn6  1  0.289  0.289  0.500  1.0
  Zn  Zn7  1  0.000  0.188  0.000  1.0
  Ge  Ge8  1  0.379  0.000  0.500  1.0
  Ge  Ge9  1  0.621  0.621  0.500  1.0
  Ge  Ge10  1  0.000  0.379  0.500  1.0
[/CIF]
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The material described by Pr2(Zn2Ge)3 crystallizes in the hexagonal P-62m space group. Pr(1) is bonded in a 15-coordinate geometry to three equivalent Zn(2), six equivalent Zn(1), and six equivalent Ge(1) atoms. There are two inequivalent Zn sites. In the first Zn site, Zn(1) is bonded in a 3-coordinate geometry to four equivalent Pr(1) and three equivalent Ge(1) atoms. In the second Zn site, Zn(2) is bonded in a 2-coordinate geometry to two equivalent Pr(1) and two equivalent Ge(1) atoms. Ge(1) is bonded in a 9-coordinate geometry to four equivalent Pr(1), two equivalent Zn(2), and three equivalent Zn(1) atoms. is represented by the CIF file [CIF]
data_Pr2(Zn2Ge)3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.620
_cell_length_b   7.620
_cell_length_c   4.104
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   206.393
_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
  Pr  Pr0  1  0.667  0.333  0.000  1.0
  Pr  Pr1  1  0.333  0.667  0.000  1.0
  Zn  Zn2  1  0.711  0.000  0.500  1.0
  Zn  Zn3  1  0.000  0.711  0.500  1.0
  Zn  Zn4  1  0.188  0.000  0.000  1.0
  Zn  Zn5  1  0.812  0.812  0.000  1.0
  Zn  Zn6  1  0.289  0.289  0.500  1.0
  Zn  Zn7  1  0.000  0.188  0.000  1.0
  Ge  Ge8  1  0.379  0.000  0.500  1.0
  Ge  Ge9  1  0.621  0.621  0.500  1.0
  Ge  Ge10  1  0.000  0.379  0.500  1.0
[/CIF]
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