The structure described by Er2CuGe6 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded in a 10-coordinate geometry to two equivalent Ge(2), two equivalent Ge(4), two equivalent Ge(5), and four equivalent Ge(3) atoms. In the second Er site, Er(2) is bonded in a 14-coordinate geometry to four equivalent Cu(1), two equivalent Ge(1), two equivalent Ge(3), two equivalent Ge(6), and four equivalent Ge(4) atoms. Cu(1) is bonded in a 9-coordinate geometry to four equivalent Er(2), one Ge(4), two equivalent Ge(1), and two equivalent Ge(6) atoms. There are six inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Er(2), two equivalent Cu(1), one Ge(2), and four equivalent Ge(6) atoms. In the second Ge site, Ge(2) is bonded in a 7-coordinate geometry to two equivalent Er(1), one Ge(1), and four equivalent Ge(5) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to two equivalent Er(2), four equivalent Er(1), and two equivalent Ge(4) atoms. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to two equivalent Er(1), four equivalent Er(2), one Cu(1), and two equivalent Ge(3) atoms. In the fifth Ge site, Ge(5) is bonded in a 7-coordinate geometry to two equivalent Er(1), one Ge(6), and four equivalent Ge(2) atoms. In the sixth Ge site, Ge(6) is bonded in a 9-coordinate geometry to two equivalent Er(2), two equivalent Cu(1), one Ge(5), and four equivalent Ge(1) atoms. is represented by the CIF card [CIF]
data_Er2CuGe6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.839
_cell_length_b   10.839
_cell_length_c   4.084
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   158.464
_symmetry_Int_Tables_number   1
_cell_volume   176.114
_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  0.005  0.995  0.000  1.0
  Er  Er1  1  0.669  0.331  0.000  1.0
  Cu  Cu2  1  0.224  0.776  0.500  1.0
  Ge  Ge3  1  0.285  0.715  0.000  1.0
  Ge  Ge4  1  0.402  0.598  0.000  1.0
  Ge  Ge5  1  0.542  0.458  0.500  1.0
  Ge  Ge6  1  0.115  0.885  0.500  1.0
  Ge  Ge7  1  0.903  0.097  0.500  1.0
  Ge  Ge8  1  0.785  0.215  0.500  1.0
[/CIF]
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The structure described by Er2CuGe6 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Er sites. In the first Er site, Er(1) is bonded in a 10-coordinate geometry to two equivalent Ge(2), two equivalent Ge(4), two equivalent Ge(5), and four equivalent Ge(3) atoms. In the second Er site, Er(2) is bonded in a 14-coordinate geometry to four equivalent Cu(1), two equivalent Ge(1), two equivalent Ge(3), two equivalent Ge(6), and four equivalent Ge(4) atoms. Cu(1) is bonded in a 9-coordinate geometry to four equivalent Er(2), one Ge(4), two equivalent Ge(1), and two equivalent Ge(6) atoms. There are six inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Er(2), two equivalent Cu(1), one Ge(2), and four equivalent Ge(6) atoms. In the second Ge site, Ge(2) is bonded in a 7-coordinate geometry to two equivalent Er(1), one Ge(1), and four equivalent Ge(5) atoms. In the third Ge site, Ge(3) is bonded in a 8-coordinate geometry to two equivalent Er(2), four equivalent Er(1), and two equivalent Ge(4) atoms. In the fourth Ge site, Ge(4) is bonded in a 9-coordinate geometry to two equivalent Er(1), four equivalent Er(2), one Cu(1), and two equivalent Ge(3) atoms. In the fifth Ge site, Ge(5) is bonded in a 7-coordinate geometry to two equivalent Er(1), one Ge(6), and four equivalent Ge(2) atoms. In the sixth Ge site, Ge(6) is bonded in a 9-coordinate geometry to two equivalent Er(2), two equivalent Cu(1), one Ge(5), and four equivalent Ge(1) atoms. is represented by the CIF card [CIF]
data_Er2CuGe6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   10.839
_cell_length_b   10.839
_cell_length_c   4.084
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   158.464
_symmetry_Int_Tables_number   1
_cell_volume   176.114
_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  0.005  0.995  0.000  1.0
  Er  Er1  1  0.669  0.331  0.000  1.0
  Cu  Cu2  1  0.224  0.776  0.500  1.0
  Ge  Ge3  1  0.285  0.715  0.000  1.0
  Ge  Ge4  1  0.402  0.598  0.000  1.0
  Ge  Ge5  1  0.542  0.458  0.500  1.0
  Ge  Ge6  1  0.115  0.885  0.500  1.0
  Ge  Ge7  1  0.903  0.097  0.500  1.0
  Ge  Ge8  1  0.785  0.215  0.500  1.0
[/CIF]
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