The material structure described by Gd5Ge4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 7-coordinate geometry to one Ge(2), two equivalent Ge(3), and four equivalent Ge(1) atoms. In the second Gd site, Gd(2) is bonded in a 6-coordinate geometry to one Ge(3), two equivalent Ge(2), and three equivalent Ge(1) atoms. In the third Gd site, Gd(3) is bonded to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms to form corner-sharing GdGe6 octahedra. The corner-sharing octahedral tilt angles range from 53-55°. There are three inequivalent Ge sites. In the first Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Gd(2), two equivalent Gd(3), four equivalent Gd(1), and one Ge(2) atom. In the second Ge site, Ge(1) is bonded in a 8-coordinate geometry to one Gd(3), three equivalent Gd(2), and four equivalent Gd(1) atoms. In the third Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Gd(1), two equivalent Gd(3), four equivalent Gd(2), and one Ge(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Gd5Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.737
_cell_length_b   7.839
_cell_length_c   14.933
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   905.727
_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
  Gd  Gd0  1  0.476  0.322  0.900  1.0
  Gd  Gd1  1  0.976  0.178  0.600  1.0
  Gd  Gd2  1  0.524  0.678  0.400  1.0
  Gd  Gd3  1  0.024  0.822  0.100  1.0
  Gd  Gd4  1  0.524  0.678  0.100  1.0
  Gd  Gd5  1  0.024  0.822  0.400  1.0
  Gd  Gd6  1  0.476  0.322  0.600  1.0
  Gd  Gd7  1  0.976  0.178  0.900  1.0
  Gd  Gd8  1  0.123  0.662  0.883  1.0
  Gd  Gd9  1  0.623  0.838  0.617  1.0
  Gd  Gd10  1  0.877  0.338  0.383  1.0
  Gd  Gd11  1  0.377  0.162  0.117  1.0
  Gd  Gd12  1  0.877  0.338  0.117  1.0
  Gd  Gd13  1  0.377  0.162  0.383  1.0
  Gd  Gd14  1  0.123  0.662  0.617  1.0
  Gd  Gd15  1  0.623  0.838  0.883  1.0
  Gd  Gd16  1  0.709  0.001  0.250  1.0
  Gd  Gd17  1  0.209  0.499  0.250  1.0
  Gd  Gd18  1  0.291  0.999  0.750  1.0
  Gd  Gd19  1  0.791  0.501  0.750  1.0
  Ge  Ge20  1  0.282  0.967  0.956  1.0
  Ge  Ge21  1  0.782  0.533  0.544  1.0
  Ge  Ge22  1  0.718  0.033  0.456  1.0
  Ge  Ge23  1  0.218  0.467  0.044  1.0
  Ge  Ge24  1  0.718  0.033  0.044  1.0
  Ge  Ge25  1  0.218  0.467  0.456  1.0
  Ge  Ge26  1  0.282  0.967  0.544  1.0
  Ge  Ge27  1  0.782  0.533  0.956  1.0
  Ge  Ge28  1  0.582  0.387  0.250  1.0
  Ge  Ge29  1  0.082  0.113  0.250  1.0
  Ge  Ge30  1  0.418  0.613  0.750  1.0
  Ge  Ge31  1  0.918  0.887  0.750  1.0
  Ge  Ge32  1  0.825  0.634  0.250  1.0
  Ge  Ge33  1  0.325  0.866  0.250  1.0
  Ge  Ge34  1  0.175  0.366  0.750  1.0
  Ge  Ge35  1  0.675  0.134  0.750  1.0
[/CIF]
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The material structure described by Gd5Ge4 crystallizes in the orthorhombic Pnma space group. There are three inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 7-coordinate geometry to one Ge(2), two equivalent Ge(3), and four equivalent Ge(1) atoms. In the second Gd site, Gd(2) is bonded in a 6-coordinate geometry to one Ge(3), two equivalent Ge(2), and three equivalent Ge(1) atoms. In the third Gd site, Gd(3) is bonded to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms to form corner-sharing GdGe6 octahedra. The corner-sharing octahedral tilt angles range from 53-55°. There are three inequivalent Ge sites. In the first Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Gd(2), two equivalent Gd(3), four equivalent Gd(1), and one Ge(2) atom. In the second Ge site, Ge(1) is bonded in a 8-coordinate geometry to one Gd(3), three equivalent Gd(2), and four equivalent Gd(1) atoms. In the third Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Gd(1), two equivalent Gd(3), four equivalent Gd(2), and one Ge(3) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_Gd5Ge4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.737
_cell_length_b   7.839
_cell_length_c   14.933
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   905.727
_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
  Gd  Gd0  1  0.476  0.322  0.900  1.0
  Gd  Gd1  1  0.976  0.178  0.600  1.0
  Gd  Gd2  1  0.524  0.678  0.400  1.0
  Gd  Gd3  1  0.024  0.822  0.100  1.0
  Gd  Gd4  1  0.524  0.678  0.100  1.0
  Gd  Gd5  1  0.024  0.822  0.400  1.0
  Gd  Gd6  1  0.476  0.322  0.600  1.0
  Gd  Gd7  1  0.976  0.178  0.900  1.0
  Gd  Gd8  1  0.123  0.662  0.883  1.0
  Gd  Gd9  1  0.623  0.838  0.617  1.0
  Gd  Gd10  1  0.877  0.338  0.383  1.0
  Gd  Gd11  1  0.377  0.162  0.117  1.0
  Gd  Gd12  1  0.877  0.338  0.117  1.0
  Gd  Gd13  1  0.377  0.162  0.383  1.0
  Gd  Gd14  1  0.123  0.662  0.617  1.0
  Gd  Gd15  1  0.623  0.838  0.883  1.0
  Gd  Gd16  1  0.709  0.001  0.250  1.0
  Gd  Gd17  1  0.209  0.499  0.250  1.0
  Gd  Gd18  1  0.291  0.999  0.750  1.0
  Gd  Gd19  1  0.791  0.501  0.750  1.0
  Ge  Ge20  1  0.282  0.967  0.956  1.0
  Ge  Ge21  1  0.782  0.533  0.544  1.0
  Ge  Ge22  1  0.718  0.033  0.456  1.0
  Ge  Ge23  1  0.218  0.467  0.044  1.0
  Ge  Ge24  1  0.718  0.033  0.044  1.0
  Ge  Ge25  1  0.218  0.467  0.456  1.0
  Ge  Ge26  1  0.282  0.967  0.544  1.0
  Ge  Ge27  1  0.782  0.533  0.956  1.0
  Ge  Ge28  1  0.582  0.387  0.250  1.0
  Ge  Ge29  1  0.082  0.113  0.250  1.0
  Ge  Ge30  1  0.418  0.613  0.750  1.0
  Ge  Ge31  1  0.918  0.887  0.750  1.0
  Ge  Ge32  1  0.825  0.634  0.250  1.0
  Ge  Ge33  1  0.325  0.866  0.250  1.0
  Ge  Ge34  1  0.175  0.366  0.750  1.0
  Ge  Ge35  1  0.675  0.134  0.750  1.0
[/CIF]
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