The structure described by Hf4NbGe4 is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a 6-coordinate geometry to one Ge(2), two equivalent Ge(3), and three equivalent Ge(1) atoms. In the second Hf site, Hf(2) is bonded in a 7-coordinate geometry to one Ge(3), two equivalent Ge(2), and four equivalent Ge(1) atoms. Nb(1) is bonded in a 6-coordinate geometry to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to three equivalent Hf(1), four equivalent Hf(2), and one Nb(1) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Hf(1), four equivalent Hf(2), two equivalent Nb(1), and one Ge(3) atom. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Hf(2), four equivalent Hf(1), two equivalent Nb(1), and one Ge(2) atom. is represented by the CIF file [CIF]
data_Hf4NbGe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.903
_cell_length_b   7.025
_cell_length_c   13.410
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   650.303
_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
  Hf  Hf0  1  0.348  0.670  0.876  1.0
  Hf  Hf1  1  0.848  0.830  0.876  1.0
  Hf  Hf2  1  0.652  0.330  0.376  1.0
  Hf  Hf3  1  0.987  0.677  0.095  1.0
  Hf  Hf4  1  0.487  0.823  0.405  1.0
  Hf  Hf5  1  0.513  0.177  0.905  1.0
  Hf  Hf6  1  0.513  0.177  0.595  1.0
  Hf  Hf7  1  0.013  0.323  0.905  1.0
  Hf  Hf8  1  0.152  0.170  0.124  1.0
  Hf  Hf9  1  0.152  0.170  0.376  1.0
  Hf  Hf10  1  0.987  0.677  0.405  1.0
  Hf  Hf11  1  0.652  0.330  0.124  1.0
  Hf  Hf12  1  0.487  0.823  0.095  1.0
  Hf  Hf13  1  0.013  0.323  0.595  1.0
  Hf  Hf14  1  0.348  0.670  0.624  1.0
  Hf  Hf15  1  0.848  0.830  0.624  1.0
  Nb  Nb16  1  0.675  0.502  0.750  1.0
  Nb  Nb17  1  0.175  0.998  0.750  1.0
  Nb  Nb18  1  0.325  0.498  0.250  1.0
  Nb  Nb19  1  0.825  0.002  0.250  1.0
  Ge  Ge20  1  0.691  0.533  0.539  1.0
  Ge  Ge21  1  0.191  0.967  0.961  1.0
  Ge  Ge22  1  0.314  0.353  0.750  1.0
  Ge  Ge23  1  0.809  0.033  0.039  1.0
  Ge  Ge24  1  0.309  0.467  0.039  1.0
  Ge  Ge25  1  0.453  0.109  0.250  1.0
  Ge  Ge26  1  0.686  0.647  0.250  1.0
  Ge  Ge27  1  0.953  0.391  0.250  1.0
  Ge  Ge28  1  0.814  0.147  0.750  1.0
  Ge  Ge29  1  0.691  0.533  0.961  1.0
  Ge  Ge30  1  0.191  0.967  0.539  1.0
  Ge  Ge31  1  0.047  0.609  0.750  1.0
  Ge  Ge32  1  0.309  0.467  0.461  1.0
  Ge  Ge33  1  0.547  0.891  0.750  1.0
  Ge  Ge34  1  0.809  0.033  0.461  1.0
  Ge  Ge35  1  0.186  0.853  0.250  1.0
[/CIF]
.
The structure described by Hf4NbGe4 is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. There are two inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a 6-coordinate geometry to one Ge(2), two equivalent Ge(3), and three equivalent Ge(1) atoms. In the second Hf site, Hf(2) is bonded in a 7-coordinate geometry to one Ge(3), two equivalent Ge(2), and four equivalent Ge(1) atoms. Nb(1) is bonded in a 6-coordinate geometry to two equivalent Ge(1), two equivalent Ge(2), and two equivalent Ge(3) atoms. There are three inequivalent Ge sites. In the first Ge site, Ge(1) is bonded in a 8-coordinate geometry to three equivalent Hf(1), four equivalent Hf(2), and one Nb(1) atom. In the second Ge site, Ge(2) is bonded in a 9-coordinate geometry to two equivalent Hf(1), four equivalent Hf(2), two equivalent Nb(1), and one Ge(3) atom. In the third Ge site, Ge(3) is bonded in a 9-coordinate geometry to two equivalent Hf(2), four equivalent Hf(1), two equivalent Nb(1), and one Ge(2) atom. is represented by the CIF file [CIF]
data_Hf4NbGe4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.903
_cell_length_b   7.025
_cell_length_c   13.410
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   650.303
_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
  Hf  Hf0  1  0.348  0.670  0.876  1.0
  Hf  Hf1  1  0.848  0.830  0.876  1.0
  Hf  Hf2  1  0.652  0.330  0.376  1.0
  Hf  Hf3  1  0.987  0.677  0.095  1.0
  Hf  Hf4  1  0.487  0.823  0.405  1.0
  Hf  Hf5  1  0.513  0.177  0.905  1.0
  Hf  Hf6  1  0.513  0.177  0.595  1.0
  Hf  Hf7  1  0.013  0.323  0.905  1.0
  Hf  Hf8  1  0.152  0.170  0.124  1.0
  Hf  Hf9  1  0.152  0.170  0.376  1.0
  Hf  Hf10  1  0.987  0.677  0.405  1.0
  Hf  Hf11  1  0.652  0.330  0.124  1.0
  Hf  Hf12  1  0.487  0.823  0.095  1.0
  Hf  Hf13  1  0.013  0.323  0.595  1.0
  Hf  Hf14  1  0.348  0.670  0.624  1.0
  Hf  Hf15  1  0.848  0.830  0.624  1.0
  Nb  Nb16  1  0.675  0.502  0.750  1.0
  Nb  Nb17  1  0.175  0.998  0.750  1.0
  Nb  Nb18  1  0.325  0.498  0.250  1.0
  Nb  Nb19  1  0.825  0.002  0.250  1.0
  Ge  Ge20  1  0.691  0.533  0.539  1.0
  Ge  Ge21  1  0.191  0.967  0.961  1.0
  Ge  Ge22  1  0.314  0.353  0.750  1.0
  Ge  Ge23  1  0.809  0.033  0.039  1.0
  Ge  Ge24  1  0.309  0.467  0.039  1.0
  Ge  Ge25  1  0.453  0.109  0.250  1.0
  Ge  Ge26  1  0.686  0.647  0.250  1.0
  Ge  Ge27  1  0.953  0.391  0.250  1.0
  Ge  Ge28  1  0.814  0.147  0.750  1.0
  Ge  Ge29  1  0.691  0.533  0.961  1.0
  Ge  Ge30  1  0.191  0.967  0.539  1.0
  Ge  Ge31  1  0.047  0.609  0.750  1.0
  Ge  Ge32  1  0.309  0.467  0.461  1.0
  Ge  Ge33  1  0.547  0.891  0.750  1.0
  Ge  Ge34  1  0.809  0.033  0.461  1.0
  Ge  Ge35  1  0.186  0.853  0.250  1.0
[/CIF]
.