The structure described by Co4Ge is Molybdenum Carbide MAX Phase-like structured and crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one Co(2), four equivalent Co(1), and one Ge(1) atom to form CoCo5Ge octahedra that share  a cornercorner with one Co(2)Co6 octahedra, corners with five equivalent Co(1)Co5Ge octahedra, edges with four equivalent Co(1)Co5Ge octahedra, edges with four equivalent Co(2)Co6 octahedra, and edges with four equivalent Ge(1)Co2Ge4 octahedra. The corner-sharing octahedra are not tilted. In the second Co site, Co(2) is bonded to one Co(1) and five equivalent Co(2) atoms to form CoCo6 octahedra that share  a cornercorner with one Co(1)Co5Ge octahedra,  a cornercorner with one Ge(1)Co2Ge4 octahedra, corners with four equivalent Co(2)Co6 octahedra, edges with four equivalent Co(1)Co5Ge octahedra, and edges with eight equivalent Co(2)Co6 octahedra. The corner-sharing octahedra are not tilted. Ge(1) is bonded to two equivalent Co(1) and four equivalent Ge(1) atoms to form GeCo2Ge4 octahedra that share corners with two equivalent Co(2)Co6 octahedra, corners with four equivalent Ge(1)Co2Ge4 octahedra, edges with four equivalent Ge(1)Co2Ge4 octahedra, and edges with eight equivalent Co(1)Co5Ge octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_Co4Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.429
_cell_length_b   2.429
_cell_length_c   11.797
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   69.580
_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  0.000  0.000  0.209  1.0
  Co  Co1  1  0.000  0.000  0.402  1.0
  Co  Co2  1  0.000  0.000  0.598  1.0
  Co  Co3  1  0.000  0.000  0.791  1.0
  Ge  Ge4  1  0.000  0.000  0.000  1.0
[/CIF]
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The structure described by Co4Ge is Molybdenum Carbide MAX Phase-like structured and crystallizes in the tetragonal P4/mmm space group. There are two inequivalent Co sites. In the first Co site, Co(1) is bonded to one Co(2), four equivalent Co(1), and one Ge(1) atom to form CoCo5Ge octahedra that share  a cornercorner with one Co(2)Co6 octahedra, corners with five equivalent Co(1)Co5Ge octahedra, edges with four equivalent Co(1)Co5Ge octahedra, edges with four equivalent Co(2)Co6 octahedra, and edges with four equivalent Ge(1)Co2Ge4 octahedra. The corner-sharing octahedra are not tilted. In the second Co site, Co(2) is bonded to one Co(1) and five equivalent Co(2) atoms to form CoCo6 octahedra that share  a cornercorner with one Co(1)Co5Ge octahedra,  a cornercorner with one Ge(1)Co2Ge4 octahedra, corners with four equivalent Co(2)Co6 octahedra, edges with four equivalent Co(1)Co5Ge octahedra, and edges with eight equivalent Co(2)Co6 octahedra. The corner-sharing octahedra are not tilted. Ge(1) is bonded to two equivalent Co(1) and four equivalent Ge(1) atoms to form GeCo2Ge4 octahedra that share corners with two equivalent Co(2)Co6 octahedra, corners with four equivalent Ge(1)Co2Ge4 octahedra, edges with four equivalent Ge(1)Co2Ge4 octahedra, and edges with eight equivalent Co(1)Co5Ge octahedra. The corner-sharing octahedra are not tilted. is represented by the Crystallographic Information File (CIF) [CIF]
data_Co4Ge
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.429
_cell_length_b   2.429
_cell_length_c   11.797
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   69.580
_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  0.000  0.000  0.209  1.0
  Co  Co1  1  0.000  0.000  0.402  1.0
  Co  Co2  1  0.000  0.000  0.598  1.0
  Co  Co3  1  0.000  0.000  0.791  1.0
  Ge  Ge4  1  0.000  0.000  0.000  1.0
[/CIF]
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