The compound described by Er3CoAl3Ge2 crystallizes in the hexagonal P-62m space group. Er(1) is bonded in a 5-coordinate geometry to one Co(1), six equivalent Al(1), and four equivalent Ge(1) atoms. Co(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 Co(1), two equivalent Al(1), and two equivalent Ge(1) atoms to form a mixture of distorted corner, edge, and face-sharing AlEr6Al2Co2Ge2 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 Crystallographic Information File (CIF) [CIF]
data_Er3Al3CoGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.893
_cell_length_b   6.893
_cell_length_c   4.151
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   170.826
_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  0.000  0.000  1.0
  Er  Er1  1  0.000  0.596  0.000  1.0
  Er  Er2  1  0.404  0.404  0.000  1.0
  Al  Al3  1  0.227  0.000  0.500  1.0
  Al  Al4  1  0.000  0.227  0.500  1.0
  Al  Al5  1  0.773  0.773  0.500  1.0
  Co  Co6  1  0.000  0.000  0.000  1.0
  Ge  Ge7  1  0.333  0.667  0.500  1.0
  Ge  Ge8  1  0.667  0.333  0.500  1.0
[/CIF]
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The compound described by Er3CoAl3Ge2 crystallizes in the hexagonal P-62m space group. Er(1) is bonded in a 5-coordinate geometry to one Co(1), six equivalent Al(1), and four equivalent Ge(1) atoms. Co(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 Co(1), two equivalent Al(1), and two equivalent Ge(1) atoms to form a mixture of distorted corner, edge, and face-sharing AlEr6Al2Co2Ge2 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 Crystallographic Information File (CIF) [CIF]
data_Er3Al3CoGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.893
_cell_length_b   6.893
_cell_length_c   4.151
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   170.826
_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  0.000  0.000  1.0
  Er  Er1  1  0.000  0.596  0.000  1.0
  Er  Er2  1  0.404  0.404  0.000  1.0
  Al  Al3  1  0.227  0.000  0.500  1.0
  Al  Al4  1  0.000  0.227  0.500  1.0
  Al  Al5  1  0.773  0.773  0.500  1.0
  Co  Co6  1  0.000  0.000  0.000  1.0
  Ge  Ge7  1  0.333  0.667  0.500  1.0
  Ge  Ge8  1  0.667  0.333  0.500  1.0
[/CIF]
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