The compound described by Co7Mo6 is Frank-Kasper $\mu$ Phase structured and crystallizes in the trigonal R-3m space group. There are three inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 15-coordinate geometry to three equivalent Mo(1), six equivalent Mo(3), and six equivalent Co(1) atoms. In the second Mo site, Mo(2) is bonded in a 16-coordinate geometry to one Mo(3), three equivalent Mo(2), three equivalent Co(2), and nine equivalent Co(1) atoms. In the third Mo site, Mo(3) is bonded in a 8-coordinate geometry to one Mo(2), one Mo(3), six equivalent Mo(1), and six equivalent Co(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Mo(1), two equivalent Mo(3), three equivalent Mo(2), one Co(2), and four equivalent Co(1) atoms to form CoCo5Mo7 cuboctahedra that share corners with two equivalent Co(2)Co6Mo6 cuboctahedra, corners with thirteen equivalent Co(1)Co5Mo7 cuboctahedra, edges with five equivalent Co(1)Co5Mo7 cuboctahedra, faces with three equivalent Co(2)Co6Mo6 cuboctahedra, and faces with ten equivalent Co(1)Co5Mo7 cuboctahedra. In the second Co site, Co(2) is bonded to six equivalent Mo(2) and six equivalent Co(1) atoms to form CoCo6Mo6 cuboctahedra that share corners with twelve equivalent Co(1)Co5Mo7 cuboctahedra, edges with six equivalent Co(2)Co6Mo6 cuboctahedra, and faces with eighteen equivalent Co(1)Co5Mo7 cuboctahedra. is represented by the CIF card [CIF]
data_Co7Mo6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.942
_cell_length_b   8.942
_cell_length_c   8.942
_cell_angle_alpha   30.805
_cell_angle_beta   30.805
_cell_angle_gamma   30.805
_symmetry_Int_Tables_number   1
_cell_volume   166.278
_cell_formula_units_Z   1
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
  Co  Co0  1  0.090  0.090  0.589  1.0
  Co  Co1  1  0.411  0.910  0.910  1.0
  Co  Co2  1  0.000  0.000  0.000  1.0
  Co  Co3  1  0.589  0.090  0.090  1.0
  Co  Co4  1  0.910  0.910  0.411  1.0
  Co  Co5  1  0.910  0.411  0.910  1.0
  Co  Co6  1  0.090  0.589  0.090  1.0
  Mo  Mo7  1  0.834  0.834  0.834  1.0
  Mo  Mo8  1  0.653  0.653  0.653  1.0
  Mo  Mo9  1  0.450  0.450  0.450  1.0
  Mo  Mo10  1  0.550  0.550  0.550  1.0
  Mo  Mo11  1  0.166  0.166  0.166  1.0
  Mo  Mo12  1  0.347  0.347  0.347  1.0
[/CIF]
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The compound described by Co7Mo6 is Frank-Kasper $\mu$ Phase structured and crystallizes in the trigonal R-3m space group. There are three inequivalent Mo sites. In the first Mo site, Mo(1) is bonded in a 15-coordinate geometry to three equivalent Mo(1), six equivalent Mo(3), and six equivalent Co(1) atoms. In the second Mo site, Mo(2) is bonded in a 16-coordinate geometry to one Mo(3), three equivalent Mo(2), three equivalent Co(2), and nine equivalent Co(1) atoms. In the third Mo site, Mo(3) is bonded in a 8-coordinate geometry to one Mo(2), one Mo(3), six equivalent Mo(1), and six equivalent Co(1) atoms. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to two equivalent Mo(1), two equivalent Mo(3), three equivalent Mo(2), one Co(2), and four equivalent Co(1) atoms to form CoCo5Mo7 cuboctahedra that share corners with two equivalent Co(2)Co6Mo6 cuboctahedra, corners with thirteen equivalent Co(1)Co5Mo7 cuboctahedra, edges with five equivalent Co(1)Co5Mo7 cuboctahedra, faces with three equivalent Co(2)Co6Mo6 cuboctahedra, and faces with ten equivalent Co(1)Co5Mo7 cuboctahedra. In the second Co site, Co(2) is bonded to six equivalent Mo(2) and six equivalent Co(1) atoms to form CoCo6Mo6 cuboctahedra that share corners with twelve equivalent Co(1)Co5Mo7 cuboctahedra, edges with six equivalent Co(2)Co6Mo6 cuboctahedra, and faces with eighteen equivalent Co(1)Co5Mo7 cuboctahedra. is represented by the CIF card [CIF]
data_Co7Mo6
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.942
_cell_length_b   8.942
_cell_length_c   8.942
_cell_angle_alpha   30.805
_cell_angle_beta   30.805
_cell_angle_gamma   30.805
_symmetry_Int_Tables_number   1
_cell_volume   166.278
_cell_formula_units_Z   1
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
  Co  Co0  1  0.090  0.090  0.589  1.0
  Co  Co1  1  0.411  0.910  0.910  1.0
  Co  Co2  1  0.000  0.000  0.000  1.0
  Co  Co3  1  0.589  0.090  0.090  1.0
  Co  Co4  1  0.910  0.910  0.411  1.0
  Co  Co5  1  0.910  0.411  0.910  1.0
  Co  Co6  1  0.090  0.589  0.090  1.0
  Mo  Mo7  1  0.834  0.834  0.834  1.0
  Mo  Mo8  1  0.653  0.653  0.653  1.0
  Mo  Mo9  1  0.450  0.450  0.450  1.0
  Mo  Mo10  1  0.550  0.550  0.550  1.0
  Mo  Mo11  1  0.166  0.166  0.166  1.0
  Mo  Mo12  1  0.347  0.347  0.347  1.0
[/CIF]
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