The crystal structure described by Eu5Ge3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to two equivalent Ge(2) and three equivalent Ge(1) atoms to form a mixture of distorted edge, face, and corner-sharing EuGe5 trigonal bipyramids. In the second Eu site, Eu(2) is bonded in a distorted square co-planar geometry to two equivalent Ge(2) and four equivalent Ge(1) 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(2), six equivalent Eu(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to two equivalent Eu(2) and eight equivalent Eu(1) atoms. is represented by the CIF card [CIF]
data_Eu5Ge3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.905
_cell_length_b   7.905
_cell_length_c   9.349
_cell_angle_alpha   115.009
_cell_angle_beta   115.009
_cell_angle_gamma   90.002
_symmetry_Int_Tables_number   1
_cell_volume   468.289
_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  0.030  0.530  0.708  1.0
  Eu  Eu1  1  0.678  0.178  0.708  1.0
  Eu  Eu2  1  0.178  0.030  0.708  1.0
  Eu  Eu3  1  0.530  0.678  0.708  1.0
  Eu  Eu4  1  0.970  0.470  0.292  1.0
  Eu  Eu5  1  0.322  0.822  0.292  1.0
  Eu  Eu6  1  0.822  0.970  0.292  1.0
  Eu  Eu7  1  0.470  0.322  0.292  1.0
  Eu  Eu8  1  0.500  0.500  0.000  1.0
  Eu  Eu9  1  0.000  0.000  0.000  1.0
  Ge  Ge10  1  0.385  0.885  0.000  1.0
  Ge  Ge11  1  0.615  0.115  1.000  1.0
  Ge  Ge12  1  0.115  0.385  0.000  1.0
  Ge  Ge13  1  0.885  0.615  1.000  1.0
  Ge  Ge14  1  0.250  0.250  0.500  1.0
  Ge  Ge15  1  0.750  0.750  0.500  1.0
[/CIF]
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The crystal structure described by Eu5Ge3 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to two equivalent Ge(2) and three equivalent Ge(1) atoms to form a mixture of distorted edge, face, and corner-sharing EuGe5 trigonal bipyramids. In the second Eu site, Eu(2) is bonded in a distorted square co-planar geometry to two equivalent Ge(2) and four equivalent Ge(1) 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(2), six equivalent Eu(1), and one Ge(1) atom. In the second Ge site, Ge(2) is bonded in a 10-coordinate geometry to two equivalent Eu(2) and eight equivalent Eu(1) atoms. is represented by the CIF card [CIF]
data_Eu5Ge3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.905
_cell_length_b   7.905
_cell_length_c   9.349
_cell_angle_alpha   115.009
_cell_angle_beta   115.009
_cell_angle_gamma   90.002
_symmetry_Int_Tables_number   1
_cell_volume   468.289
_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  0.030  0.530  0.708  1.0
  Eu  Eu1  1  0.678  0.178  0.708  1.0
  Eu  Eu2  1  0.178  0.030  0.708  1.0
  Eu  Eu3  1  0.530  0.678  0.708  1.0
  Eu  Eu4  1  0.970  0.470  0.292  1.0
  Eu  Eu5  1  0.322  0.822  0.292  1.0
  Eu  Eu6  1  0.822  0.970  0.292  1.0
  Eu  Eu7  1  0.470  0.322  0.292  1.0
  Eu  Eu8  1  0.500  0.500  0.000  1.0
  Eu  Eu9  1  0.000  0.000  0.000  1.0
  Ge  Ge10  1  0.385  0.885  0.000  1.0
  Ge  Ge11  1  0.615  0.115  1.000  1.0
  Ge  Ge12  1  0.115  0.385  0.000  1.0
  Ge  Ge13  1  0.885  0.615  1.000  1.0
  Ge  Ge14  1  0.250  0.250  0.500  1.0
  Ge  Ge15  1  0.750  0.750  0.500  1.0
[/CIF]
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