The crystal structure described by EuGaGe crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to six equivalent Ge(1) atoms to form distorted edge-sharing EuGe6 octahedra. In the second Eu site, Eu(2) is bonded in a 12-coordinate geometry to six equivalent Ga(1) and six equivalent Ge(1) atoms. Ga(1) is bonded in a 6-coordinate geometry to three equivalent Eu(2) and three equivalent Ge(1) atoms. Ge(1) is bonded in a 6-coordinate geometry to three equivalent Eu(1), three equivalent Eu(2), and three equivalent Ga(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuGaGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.227
_cell_length_b   4.227
_cell_length_c   17.982
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   278.198
_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  0.000  0.000  0.500  1.0
  Eu  Eu1  1  0.000  0.000  0.000  1.0
  Eu  Eu2  1  0.000  0.000  0.250  1.0
  Eu  Eu3  1  0.000  0.000  0.750  1.0
  Ga  Ga4  1  0.667  0.333  0.355  1.0
  Ga  Ga5  1  0.333  0.667  0.645  1.0
  Ga  Ga6  1  0.333  0.667  0.855  1.0
  Ga  Ga7  1  0.667  0.333  0.145  1.0
  Ge  Ge8  1  0.333  0.667  0.388  1.0
  Ge  Ge9  1  0.667  0.333  0.612  1.0
  Ge  Ge10  1  0.667  0.333  0.888  1.0
  Ge  Ge11  1  0.333  0.667  0.112  1.0
[/CIF]
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The crystal structure described by EuGaGe crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded to six equivalent Ge(1) atoms to form distorted edge-sharing EuGe6 octahedra. In the second Eu site, Eu(2) is bonded in a 12-coordinate geometry to six equivalent Ga(1) and six equivalent Ge(1) atoms. Ga(1) is bonded in a 6-coordinate geometry to three equivalent Eu(2) and three equivalent Ge(1) atoms. Ge(1) is bonded in a 6-coordinate geometry to three equivalent Eu(1), three equivalent Eu(2), and three equivalent Ga(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_EuGaGe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.227
_cell_length_b   4.227
_cell_length_c   17.982
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   278.198
_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  0.000  0.000  0.500  1.0
  Eu  Eu1  1  0.000  0.000  0.000  1.0
  Eu  Eu2  1  0.000  0.000  0.250  1.0
  Eu  Eu3  1  0.000  0.000  0.750  1.0
  Ga  Ga4  1  0.667  0.333  0.355  1.0
  Ga  Ga5  1  0.333  0.667  0.645  1.0
  Ga  Ga6  1  0.333  0.667  0.855  1.0
  Ga  Ga7  1  0.667  0.333  0.145  1.0
  Ge  Ge8  1  0.333  0.667  0.388  1.0
  Ge  Ge9  1  0.667  0.333  0.612  1.0
  Ge  Ge10  1  0.667  0.333  0.888  1.0
  Ge  Ge11  1  0.333  0.667  0.112  1.0
[/CIF]
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