The compound described by EuAl2Ge crystallizes in the orthorhombic Pnma space group. Eu(1) is bonded in a 14-coordinate geometry to four equivalent Al(1), five equivalent Al(2), and five equivalent Ge(1) atoms. There are two inequivalent Al sites. In the first Al site, Al(2) is bonded in a 2-coordinate geometry to five equivalent Eu(1), three equivalent Al(1), and two equivalent Ge(1) atoms. In the second Al site, Al(1) is bonded in a 9-coordinate geometry to four equivalent Eu(1), three equivalent Al(2), and two equivalent Ge(1) atoms. Ge(1) is bonded in a 7-coordinate geometry to five equivalent Eu(1), two equivalent Al(1), and two equivalent Al(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuAl2Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.279
_cell_length_b   7.229
_cell_length_c   11.192
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   346.166
_cell_formula_units_Z   4
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  0.250  0.355  0.640  1.0
  Eu  Eu1  1  0.250  0.855  0.860  1.0
  Eu  Eu2  1  0.750  0.645  0.360  1.0
  Eu  Eu3  1  0.750  0.145  0.140  1.0
  Al  Al4  1  0.250  0.972  0.344  1.0
  Al  Al5  1  0.250  0.472  0.156  1.0
  Al  Al6  1  0.750  0.028  0.656  1.0
  Al  Al7  1  0.750  0.528  0.844  1.0
  Al  Al8  1  0.250  0.350  0.937  1.0
  Al  Al9  1  0.250  0.850  0.563  1.0
  Al  Al10  1  0.750  0.650  0.063  1.0
  Al  Al11  1  0.750  0.150  0.437  1.0
  Ge  Ge12  1  0.250  0.327  0.358  1.0
  Ge  Ge13  1  0.250  0.827  0.142  1.0
  Ge  Ge14  1  0.750  0.673  0.642  1.0
  Ge  Ge15  1  0.750  0.173  0.858  1.0
[/CIF]
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The compound described by EuAl2Ge crystallizes in the orthorhombic Pnma space group. Eu(1) is bonded in a 14-coordinate geometry to four equivalent Al(1), five equivalent Al(2), and five equivalent Ge(1) atoms. There are two inequivalent Al sites. In the first Al site, Al(2) is bonded in a 2-coordinate geometry to five equivalent Eu(1), three equivalent Al(1), and two equivalent Ge(1) atoms. In the second Al site, Al(1) is bonded in a 9-coordinate geometry to four equivalent Eu(1), three equivalent Al(2), and two equivalent Ge(1) atoms. Ge(1) is bonded in a 7-coordinate geometry to five equivalent Eu(1), two equivalent Al(1), and two equivalent Al(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuAl2Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.279
_cell_length_b   7.229
_cell_length_c   11.192
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   346.166
_cell_formula_units_Z   4
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  0.250  0.355  0.640  1.0
  Eu  Eu1  1  0.250  0.855  0.860  1.0
  Eu  Eu2  1  0.750  0.645  0.360  1.0
  Eu  Eu3  1  0.750  0.145  0.140  1.0
  Al  Al4  1  0.250  0.972  0.344  1.0
  Al  Al5  1  0.250  0.472  0.156  1.0
  Al  Al6  1  0.750  0.028  0.656  1.0
  Al  Al7  1  0.750  0.528  0.844  1.0
  Al  Al8  1  0.250  0.350  0.937  1.0
  Al  Al9  1  0.250  0.850  0.563  1.0
  Al  Al10  1  0.750  0.650  0.063  1.0
  Al  Al11  1  0.750  0.150  0.437  1.0
  Ge  Ge12  1  0.250  0.327  0.358  1.0
  Ge  Ge13  1  0.250  0.827  0.142  1.0
  Ge  Ge14  1  0.750  0.673  0.642  1.0
  Ge  Ge15  1  0.750  0.173  0.858  1.0
[/CIF]
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