The structure described by Eu2ZnGe3 crystallizes in the monoclinic C2/m space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 12-coordinate geometry to two equivalent Zn(1), two equivalent Ge(1), and eight equivalent Ge(2) atoms. In the second Eu site, Eu(2) is bonded in a 12-coordinate geometry to four equivalent Zn(1), four equivalent Ge(1), and four equivalent Ge(2) atoms. Zn(1) is bonded in a 3-coordinate geometry to two equivalent Eu(1), four equivalent Eu(2), one Ge(1), and two equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Eu(1), four equivalent Eu(2), one Zn(1), and two equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Eu(2), four equivalent Eu(1), one Zn(1), one Ge(1), and one Ge(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu2ZnGe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.187
_cell_length_b   6.187
_cell_length_c   8.617
_cell_angle_alpha   67.608
_cell_angle_beta   67.608
_cell_angle_gamma   86.372
_symmetry_Int_Tables_number   1
_cell_volume   280.675
_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
  Eu  Eu0  1  0.757  0.757  0.001  1.0
  Eu  Eu1  1  0.243  0.243  0.999  1.0
  Eu  Eu2  1  0.751  0.249  0.500  1.0
  Eu  Eu3  1  0.249  0.751  0.500  1.0
  Zn  Zn4  1  0.309  0.309  0.332  1.0
  Zn  Zn5  1  0.691  0.691  0.668  1.0
  Ge  Ge6  1  0.200  0.200  0.663  1.0
  Ge  Ge7  1  0.800  0.800  0.337  1.0
  Ge  Ge8  1  0.799  0.305  0.832  1.0
  Ge  Ge9  1  0.695  0.201  0.168  1.0
  Ge  Ge10  1  0.201  0.695  0.168  1.0
  Ge  Ge11  1  0.305  0.799  0.832  1.0
[/CIF]
.
The structure described by Eu2ZnGe3 crystallizes in the monoclinic C2/m space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 12-coordinate geometry to two equivalent Zn(1), two equivalent Ge(1), and eight equivalent Ge(2) atoms. In the second Eu site, Eu(2) is bonded in a 12-coordinate geometry to four equivalent Zn(1), four equivalent Ge(1), and four equivalent Ge(2) atoms. Zn(1) is bonded in a 3-coordinate geometry to two equivalent Eu(1), four equivalent Eu(2), one Ge(1), and two equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Eu(1), four equivalent Eu(2), one Zn(1), and two equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Eu(2), four equivalent Eu(1), one Zn(1), one Ge(1), and one Ge(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Eu2ZnGe3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.187
_cell_length_b   6.187
_cell_length_c   8.617
_cell_angle_alpha   67.608
_cell_angle_beta   67.608
_cell_angle_gamma   86.372
_symmetry_Int_Tables_number   1
_cell_volume   280.675
_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
  Eu  Eu0  1  0.757  0.757  0.001  1.0
  Eu  Eu1  1  0.243  0.243  0.999  1.0
  Eu  Eu2  1  0.751  0.249  0.500  1.0
  Eu  Eu3  1  0.249  0.751  0.500  1.0
  Zn  Zn4  1  0.309  0.309  0.332  1.0
  Zn  Zn5  1  0.691  0.691  0.668  1.0
  Ge  Ge6  1  0.200  0.200  0.663  1.0
  Ge  Ge7  1  0.800  0.800  0.337  1.0
  Ge  Ge8  1  0.799  0.305  0.832  1.0
  Ge  Ge9  1  0.695  0.201  0.168  1.0
  Ge  Ge10  1  0.201  0.695  0.168  1.0
  Ge  Ge11  1  0.305  0.799  0.832  1.0
[/CIF]
.