The structure described by FeGe2 crystallizes in the orthorhombic Cmce space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 8-coordinate geometry to four equivalent Ge(1) and four equivalent Ge(2) atoms. In the second Fe site, Fe(2) is bonded in a 8-coordinate geometry to four equivalent Ge(1) and four equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Fe(1), two equivalent Fe(2), two equivalent Ge(1), and three equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Fe(1), two equivalent Fe(2), two equivalent Ge(2), and three equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_FeGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.579
_cell_length_b   6.579
_cell_length_c   8.170
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   104.976
_symmetry_Int_Tables_number   1
_cell_volume   341.612
_cell_formula_units_Z   8
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
  Fe  Fe0  1  0.697  0.697  0.688  1.0
  Fe  Fe1  1  0.303  0.303  0.312  1.0
  Fe  Fe2  1  0.282  0.718  0.500  1.0
  Fe  Fe3  1  0.782  0.218  0.000  1.0
  Fe  Fe4  1  0.197  0.197  0.812  1.0
  Fe  Fe5  1  0.718  0.282  0.500  1.0
  Fe  Fe6  1  0.218  0.782  0.000  1.0
  Fe  Fe7  1  0.803  0.803  0.188  1.0
  Ge  Ge8  1  0.355  0.101  0.544  1.0
  Ge  Ge9  1  0.913  0.166  0.269  1.0
  Ge  Ge10  1  0.101  0.355  0.544  1.0
  Ge  Ge11  1  0.413  0.666  0.231  1.0
  Ge  Ge12  1  0.834  0.087  0.731  1.0
  Ge  Ge13  1  0.899  0.645  0.456  1.0
  Ge  Ge14  1  0.645  0.899  0.456  1.0
  Ge  Ge15  1  0.601  0.855  0.956  1.0
  Ge  Ge16  1  0.334  0.587  0.769  1.0
  Ge  Ge17  1  0.666  0.413  0.231  1.0
  Ge  Ge18  1  0.399  0.145  0.044  1.0
  Ge  Ge19  1  0.087  0.834  0.731  1.0
  Ge  Ge20  1  0.587  0.334  0.769  1.0
  Ge  Ge21  1  0.166  0.913  0.269  1.0
  Ge  Ge22  1  0.145  0.399  0.044  1.0
  Ge  Ge23  1  0.855  0.601  0.956  1.0
[/CIF]
.
The structure described by FeGe2 crystallizes in the orthorhombic Cmce space group. There are two inequivalent Fe sites. In the first Fe site, Fe(1) is bonded in a 8-coordinate geometry to four equivalent Ge(1) and four equivalent Ge(2) atoms. In the second Fe site, Fe(2) is bonded in a 8-coordinate geometry to four equivalent Ge(1) and four equivalent Ge(2) atoms. There are two inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 9-coordinate geometry to two equivalent Fe(1), two equivalent Fe(2), two equivalent Ge(1), and three equivalent Ge(2) atoms. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Fe(1), two equivalent Fe(2), two equivalent Ge(2), and three equivalent Ge(1) atoms. is represented by the CIF file [CIF]
data_FeGe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.579
_cell_length_b   6.579
_cell_length_c   8.170
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   104.976
_symmetry_Int_Tables_number   1
_cell_volume   341.612
_cell_formula_units_Z   8
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
  Fe  Fe0  1  0.697  0.697  0.688  1.0
  Fe  Fe1  1  0.303  0.303  0.312  1.0
  Fe  Fe2  1  0.282  0.718  0.500  1.0
  Fe  Fe3  1  0.782  0.218  0.000  1.0
  Fe  Fe4  1  0.197  0.197  0.812  1.0
  Fe  Fe5  1  0.718  0.282  0.500  1.0
  Fe  Fe6  1  0.218  0.782  0.000  1.0
  Fe  Fe7  1  0.803  0.803  0.188  1.0
  Ge  Ge8  1  0.355  0.101  0.544  1.0
  Ge  Ge9  1  0.913  0.166  0.269  1.0
  Ge  Ge10  1  0.101  0.355  0.544  1.0
  Ge  Ge11  1  0.413  0.666  0.231  1.0
  Ge  Ge12  1  0.834  0.087  0.731  1.0
  Ge  Ge13  1  0.899  0.645  0.456  1.0
  Ge  Ge14  1  0.645  0.899  0.456  1.0
  Ge  Ge15  1  0.601  0.855  0.956  1.0
  Ge  Ge16  1  0.334  0.587  0.769  1.0
  Ge  Ge17  1  0.666  0.413  0.231  1.0
  Ge  Ge18  1  0.399  0.145  0.044  1.0
  Ge  Ge19  1  0.087  0.834  0.731  1.0
  Ge  Ge20  1  0.587  0.334  0.769  1.0
  Ge  Ge21  1  0.166  0.913  0.269  1.0
  Ge  Ge22  1  0.145  0.399  0.044  1.0
  Ge  Ge23  1  0.855  0.601  0.956  1.0
[/CIF]
.