The crystal structure described by Hf9Mo4Co crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a 5-coordinate geometry to one Mo(1), three equivalent Mo(2), and one Co(1) atom. In the second Hf site, Hf(2) is bonded in a 2-coordinate geometry to two equivalent Mo(2) atoms. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to six equivalent Hf(1) and six equivalent Mo(2) atoms to form face-sharing MoHf6Mo6 cuboctahedra. In the second Mo site, Mo(2) is bonded in a 12-coordinate geometry to two equivalent Hf(2), six equivalent Hf(1), two equivalent Mo(1), and two equivalent Mo(2) atoms. Co(1) is bonded in a 6-coordinate geometry to six equivalent Hf(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Hf9CoMo4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.657
_cell_length_b   8.657
_cell_length_c   8.369
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   543.143
_cell_formula_units_Z   2
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  0.202  0.798  0.059  1.0
  Hf  Hf1  1  0.596  0.798  0.059  1.0
  Hf  Hf2  1  0.798  0.596  0.559  1.0
  Hf  Hf3  1  0.202  0.404  0.059  1.0
  Hf  Hf4  1  0.798  0.202  0.559  1.0
  Hf  Hf5  1  0.404  0.202  0.559  1.0
  Hf  Hf6  1  0.798  0.596  0.941  1.0
  Hf  Hf7  1  0.798  0.202  0.941  1.0
  Hf  Hf8  1  0.404  0.202  0.941  1.0
  Hf  Hf9  1  0.596  0.798  0.441  1.0
  Hf  Hf10  1  0.202  0.798  0.441  1.0
  Hf  Hf11  1  0.202  0.404  0.441  1.0
  Hf  Hf12  1  0.542  0.084  0.250  1.0
  Hf  Hf13  1  0.458  0.916  0.750  1.0
  Hf  Hf14  1  0.916  0.458  0.250  1.0
  Hf  Hf15  1  0.542  0.458  0.250  1.0
  Hf  Hf16  1  0.458  0.542  0.750  1.0
  Hf  Hf17  1  0.084  0.542  0.750  1.0
  Co  Co18  1  0.667  0.333  0.750  1.0
  Co  Co19  1  0.333  0.667  0.250  1.0
  Mo  Mo20  1  1.000  1.000  0.000  1.0
  Mo  Mo21  1  0.000  0.000  0.500  1.0
  Mo  Mo22  1  0.889  0.777  0.250  1.0
  Mo  Mo23  1  0.111  0.223  0.750  1.0
  Mo  Mo24  1  0.223  0.111  0.250  1.0
  Mo  Mo25  1  0.889  0.111  0.250  1.0
  Mo  Mo26  1  0.111  0.889  0.750  1.0
  Mo  Mo27  1  0.777  0.889  0.750  1.0
[/CIF]
.
The crystal structure described by Hf9Mo4Co crystallizes in the hexagonal P6_3/mmc space group. There are two inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a 5-coordinate geometry to one Mo(1), three equivalent Mo(2), and one Co(1) atom. In the second Hf site, Hf(2) is bonded in a 2-coordinate geometry to two equivalent Mo(2) atoms. There are two inequivalent Mo sites. In the first Mo site, Mo(1) is bonded to six equivalent Hf(1) and six equivalent Mo(2) atoms to form face-sharing MoHf6Mo6 cuboctahedra. In the second Mo site, Mo(2) is bonded in a 12-coordinate geometry to two equivalent Hf(2), six equivalent Hf(1), two equivalent Mo(1), and two equivalent Mo(2) atoms. Co(1) is bonded in a 6-coordinate geometry to six equivalent Hf(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Hf9CoMo4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.657
_cell_length_b   8.657
_cell_length_c   8.369
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   543.143
_cell_formula_units_Z   2
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  0.202  0.798  0.059  1.0
  Hf  Hf1  1  0.596  0.798  0.059  1.0
  Hf  Hf2  1  0.798  0.596  0.559  1.0
  Hf  Hf3  1  0.202  0.404  0.059  1.0
  Hf  Hf4  1  0.798  0.202  0.559  1.0
  Hf  Hf5  1  0.404  0.202  0.559  1.0
  Hf  Hf6  1  0.798  0.596  0.941  1.0
  Hf  Hf7  1  0.798  0.202  0.941  1.0
  Hf  Hf8  1  0.404  0.202  0.941  1.0
  Hf  Hf9  1  0.596  0.798  0.441  1.0
  Hf  Hf10  1  0.202  0.798  0.441  1.0
  Hf  Hf11  1  0.202  0.404  0.441  1.0
  Hf  Hf12  1  0.542  0.084  0.250  1.0
  Hf  Hf13  1  0.458  0.916  0.750  1.0
  Hf  Hf14  1  0.916  0.458  0.250  1.0
  Hf  Hf15  1  0.542  0.458  0.250  1.0
  Hf  Hf16  1  0.458  0.542  0.750  1.0
  Hf  Hf17  1  0.084  0.542  0.750  1.0
  Co  Co18  1  0.667  0.333  0.750  1.0
  Co  Co19  1  0.333  0.667  0.250  1.0
  Mo  Mo20  1  1.000  1.000  0.000  1.0
  Mo  Mo21  1  0.000  0.000  0.500  1.0
  Mo  Mo22  1  0.889  0.777  0.250  1.0
  Mo  Mo23  1  0.111  0.223  0.750  1.0
  Mo  Mo24  1  0.223  0.111  0.250  1.0
  Mo  Mo25  1  0.889  0.111  0.250  1.0
  Mo  Mo26  1  0.111  0.889  0.750  1.0
  Mo  Mo27  1  0.777  0.889  0.750  1.0
[/CIF]
.