The compound described by CeCo9Ga4 crystallizes in the tetragonal I4/mcm space group. Ce(1) is bonded in a 24-coordinate geometry to eight equivalent Co(1), eight equivalent Co(3), and eight equivalent Ga(1) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 12-coordinate geometry to two equivalent Ce(1), one Co(2), two equivalent Co(3), three equivalent Co(1), and four equivalent Ga(1) atoms. In the second Co site, Co(2) is bonded to four equivalent Co(1), four equivalent Co(3), and four equivalent Ga(1) atoms to form a mixture of corner and face-sharing CoGa4Co8 cuboctahedra. In the third Co site, Co(3) is bonded to two equivalent Ce(1), one Co(2), two equivalent Co(1), three equivalent Co(3), and four equivalent Ga(1) atoms to form distorted CoCe2Ga4Co6 cuboctahedra that share  a cornercorner with one Co(2)Ga4Co8 cuboctahedra, corners with seven equivalent Co(3)Ce2Ga4Co6 cuboctahedra, edges with four equivalent Co(3)Ce2Ga4Co6 cuboctahedra, faces with two equivalent Co(2)Ga4Co8 cuboctahedra, and faces with five equivalent Co(3)Ce2Ga4Co6 cuboctahedra. Ga(1) is bonded in a 11-coordinate geometry to two equivalent Ce(1), one Co(2), four equivalent Co(1), and four equivalent Co(3) atoms. is represented by the CIF file [CIF]
data_CeGa4Co9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.104
_cell_length_b   8.104
_cell_length_c   8.104
_cell_angle_alpha   121.167
_cell_angle_beta   121.167
_cell_angle_gamma   87.991
_symmetry_Int_Tables_number   1
_cell_volume   369.504
_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
  Ce  Ce0  1  0.750  0.750  0.000  1.0
  Ce  Ce1  1  0.250  0.250  0.000  1.0
  Ga  Ga2  1  0.805  0.305  0.861  1.0
  Ga  Ga3  1  0.443  0.943  0.139  1.0
  Ga  Ga4  1  0.695  0.557  0.500  1.0
  Ga  Ga5  1  0.057  0.195  0.500  1.0
  Ga  Ga6  1  0.195  0.695  0.139  1.0
  Ga  Ga7  1  0.557  0.057  0.861  1.0
  Ga  Ga8  1  0.943  0.805  0.500  1.0
  Ga  Ga9  1  0.305  0.443  0.500  1.0
  Co  Co10  1  0.201  0.062  0.262  1.0
  Co  Co11  1  0.799  0.938  0.738  1.0
  Co  Co12  1  0.299  0.562  0.861  1.0
  Co  Co13  1  0.701  0.438  0.139  1.0
  Co  Co14  1  0.438  0.299  0.738  1.0
  Co  Co15  1  0.562  0.701  0.262  1.0
  Co  Co16  1  0.938  0.201  0.139  1.0
  Co  Co17  1  0.062  0.799  0.861  1.0
  Co  Co18  1  0.500  0.000  0.500  1.0
  Co  Co19  1  0.000  0.500  0.500  1.0
  Co  Co20  1  0.289  0.789  0.727  1.0
  Co  Co21  1  0.062  0.562  0.273  1.0
  Co  Co22  1  0.211  0.938  0.500  1.0
  Co  Co23  1  0.438  0.711  0.500  1.0
  Co  Co24  1  0.711  0.211  0.273  1.0
  Co  Co25  1  0.938  0.438  0.727  1.0
  Co  Co26  1  0.562  0.289  0.500  1.0
  Co  Co27  1  0.789  0.062  0.500  1.0
[/CIF]
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The compound described by CeCo9Ga4 crystallizes in the tetragonal I4/mcm space group. Ce(1) is bonded in a 24-coordinate geometry to eight equivalent Co(1), eight equivalent Co(3), and eight equivalent Ga(1) atoms. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded in a 12-coordinate geometry to two equivalent Ce(1), one Co(2), two equivalent Co(3), three equivalent Co(1), and four equivalent Ga(1) atoms. In the second Co site, Co(2) is bonded to four equivalent Co(1), four equivalent Co(3), and four equivalent Ga(1) atoms to form a mixture of corner and face-sharing CoGa4Co8 cuboctahedra. In the third Co site, Co(3) is bonded to two equivalent Ce(1), one Co(2), two equivalent Co(1), three equivalent Co(3), and four equivalent Ga(1) atoms to form distorted CoCe2Ga4Co6 cuboctahedra that share  a cornercorner with one Co(2)Ga4Co8 cuboctahedra, corners with seven equivalent Co(3)Ce2Ga4Co6 cuboctahedra, edges with four equivalent Co(3)Ce2Ga4Co6 cuboctahedra, faces with two equivalent Co(2)Ga4Co8 cuboctahedra, and faces with five equivalent Co(3)Ce2Ga4Co6 cuboctahedra. Ga(1) is bonded in a 11-coordinate geometry to two equivalent Ce(1), one Co(2), four equivalent Co(1), and four equivalent Co(3) atoms. is represented by the CIF file [CIF]
data_CeGa4Co9
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.104
_cell_length_b   8.104
_cell_length_c   8.104
_cell_angle_alpha   121.167
_cell_angle_beta   121.167
_cell_angle_gamma   87.991
_symmetry_Int_Tables_number   1
_cell_volume   369.504
_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
  Ce  Ce0  1  0.750  0.750  0.000  1.0
  Ce  Ce1  1  0.250  0.250  0.000  1.0
  Ga  Ga2  1  0.805  0.305  0.861  1.0
  Ga  Ga3  1  0.443  0.943  0.139  1.0
  Ga  Ga4  1  0.695  0.557  0.500  1.0
  Ga  Ga5  1  0.057  0.195  0.500  1.0
  Ga  Ga6  1  0.195  0.695  0.139  1.0
  Ga  Ga7  1  0.557  0.057  0.861  1.0
  Ga  Ga8  1  0.943  0.805  0.500  1.0
  Ga  Ga9  1  0.305  0.443  0.500  1.0
  Co  Co10  1  0.201  0.062  0.262  1.0
  Co  Co11  1  0.799  0.938  0.738  1.0
  Co  Co12  1  0.299  0.562  0.861  1.0
  Co  Co13  1  0.701  0.438  0.139  1.0
  Co  Co14  1  0.438  0.299  0.738  1.0
  Co  Co15  1  0.562  0.701  0.262  1.0
  Co  Co16  1  0.938  0.201  0.139  1.0
  Co  Co17  1  0.062  0.799  0.861  1.0
  Co  Co18  1  0.500  0.000  0.500  1.0
  Co  Co19  1  0.000  0.500  0.500  1.0
  Co  Co20  1  0.289  0.789  0.727  1.0
  Co  Co21  1  0.062  0.562  0.273  1.0
  Co  Co22  1  0.211  0.938  0.500  1.0
  Co  Co23  1  0.438  0.711  0.500  1.0
  Co  Co24  1  0.711  0.211  0.273  1.0
  Co  Co25  1  0.938  0.438  0.727  1.0
  Co  Co26  1  0.562  0.289  0.500  1.0
  Co  Co27  1  0.789  0.062  0.500  1.0
[/CIF]
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