The crystal structure described by Er3NiAl3Ge2 crystallizes in the hexagonal P-62m space group. Er(1) is bonded in a 5-coordinate geometry to one Ni(1), six equivalent Al(1), and four equivalent Ge(1) atoms. Ni(1) is bonded in a distorted q6 geometry to three equivalent Er(1) and six equivalent Al(1) atoms. Al(1) is bonded to six equivalent Er(1), two equivalent Ni(1), two equivalent Al(1), and two equivalent Ge(1) atoms to form a mixture of distorted edge, corner, and face-sharing AlEr6Al2Ni2Ge2 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Er(1) and three equivalent Al(1) atoms. is represented by the CIF card [CIF]
data_Er3Al3NiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.894
_cell_length_b   6.894
_cell_length_c   4.154
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   170.961
_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
  Er  Er0  1  0.596  0.596  0.500  1.0
  Er  Er1  1  0.404  0.000  0.500  1.0
  Er  Er2  1  0.000  0.404  0.500  1.0
  Al  Al3  1  0.000  0.771  0.000  1.0
  Al  Al4  1  0.229  0.229  0.000  1.0
  Al  Al5  1  0.771  0.000  0.000  1.0
  Ni  Ni6  1  0.000  0.000  0.500  1.0
  Ge  Ge7  1  0.333  0.667  0.000  1.0
  Ge  Ge8  1  0.667  0.333  0.000  1.0
[/CIF]
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The crystal structure described by Er3NiAl3Ge2 crystallizes in the hexagonal P-62m space group. Er(1) is bonded in a 5-coordinate geometry to one Ni(1), six equivalent Al(1), and four equivalent Ge(1) atoms. Ni(1) is bonded in a distorted q6 geometry to three equivalent Er(1) and six equivalent Al(1) atoms. Al(1) is bonded to six equivalent Er(1), two equivalent Ni(1), two equivalent Al(1), and two equivalent Ge(1) atoms to form a mixture of distorted edge, corner, and face-sharing AlEr6Al2Ni2Ge2 tetrahedra. Ge(1) is bonded in a 9-coordinate geometry to six equivalent Er(1) and three equivalent Al(1) atoms. is represented by the CIF card [CIF]
data_Er3Al3NiGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.894
_cell_length_b   6.894
_cell_length_c   4.154
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   170.961
_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
  Er  Er0  1  0.596  0.596  0.500  1.0
  Er  Er1  1  0.404  0.000  0.500  1.0
  Er  Er2  1  0.000  0.404  0.500  1.0
  Al  Al3  1  0.000  0.771  0.000  1.0
  Al  Al4  1  0.229  0.229  0.000  1.0
  Al  Al5  1  0.771  0.000  0.000  1.0
  Ni  Ni6  1  0.000  0.000  0.500  1.0
  Ge  Ge7  1  0.333  0.667  0.000  1.0
  Ge  Ge8  1  0.667  0.333  0.000  1.0
[/CIF]
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