The material structure described by La6Co13Pb crystallizes in the tetragonal I4/mcm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 13-coordinate geometry to four equivalent Co(2), four equivalent Co(3), four equivalent Co(4), and one Pb(1) atom. In the second La site, La(2) is bonded in a 6-coordinate geometry to one Co(3), three equivalent Co(4), and two equivalent Pb(1) atoms. There are four inequivalent Co sites. In the first Co site, Co(3) is bonded in a 12-coordinate geometry to one La(2), two equivalent La(1), one Co(1), one Co(3), three equivalent Co(4), and four equivalent Co(2) atoms. In the second Co site, Co(4) is bonded in a 12-coordinate geometry to two equivalent La(1), three equivalent La(2), one Co(1), one Co(4), two equivalent Co(2), and three equivalent Co(3) atoms. In the third Co site, Co(1) is bonded to four equivalent Co(2), four equivalent Co(3), and four equivalent Co(4) atoms to form a mixture of face and corner-sharing CoCo12 cuboctahedra. In the fourth Co site, Co(2) is bonded to two equivalent La(1), one Co(1), two equivalent Co(4), three equivalent Co(2), and four equivalent Co(3) atoms to form distorted CoLa2Co10 cuboctahedra that share  a cornercorner with one Co(1)Co12 cuboctahedra, corners with three equivalent Co(2)La2Co10 cuboctahedra, faces with two equivalent Co(1)Co12 cuboctahedra, and faces with seven equivalent Co(2)La2Co10 cuboctahedra. Pb(1) is bonded in a distorted q6 geometry to two equivalent La(1) and eight equivalent La(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_La6Co13Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.085
_cell_length_b   8.085
_cell_length_c   12.868
_cell_angle_alpha   108.309
_cell_angle_beta   108.309
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   753.477
_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
  La  La0  1  0.600  0.600  0.199  1.0
  La  La1  1  0.100  0.100  0.199  1.0
  La  La2  1  0.400  0.400  0.801  1.0
  La  La3  1  0.900  0.900  0.801  1.0
  La  La4  1  0.981  0.481  0.640  1.0
  La  La5  1  0.659  0.159  0.640  1.0
  La  La6  1  0.159  0.981  0.640  1.0
  La  La7  1  0.481  0.659  0.640  1.0
  La  La8  1  0.019  0.519  0.360  1.0
  La  La9  1  0.341  0.841  0.360  1.0
  La  La10  1  0.841  0.019  0.360  1.0
  La  La11  1  0.519  0.341  0.360  1.0
  Co  Co12  1  0.000  0.500  0.000  1.0
  Co  Co13  1  0.500  0.000  0.000  1.0
  Co  Co14  1  0.715  0.565  0.000  1.0
  Co  Co15  1  0.285  0.435  0.000  1.0
  Co  Co16  1  0.785  0.065  0.000  1.0
  Co  Co17  1  0.215  0.935  0.000  1.0
  Co  Co18  1  0.565  0.285  0.000  1.0
  Co  Co19  1  0.435  0.715  0.000  1.0
  Co  Co20  1  0.065  0.215  0.000  1.0
  Co  Co21  1  0.935  0.785  0.000  1.0
  Co  Co22  1  0.121  0.621  0.888  1.0
  Co  Co23  1  0.767  0.267  0.888  1.0
  Co  Co24  1  0.267  0.121  0.888  1.0
  Co  Co25  1  0.621  0.767  0.888  1.0
  Co  Co26  1  0.879  0.379  0.112  1.0
  Co  Co27  1  0.233  0.733  0.112  1.0
  Co  Co28  1  0.733  0.879  0.112  1.0
  Co  Co29  1  0.379  0.233  0.112  1.0
  Co  Co30  1  0.298  0.798  0.823  1.0
  Co  Co31  1  0.525  0.025  0.823  1.0
  Co  Co32  1  0.025  0.298  0.823  1.0
  Co  Co33  1  0.798  0.525  0.823  1.0
  Co  Co34  1  0.702  0.202  0.177  1.0
  Co  Co35  1  0.475  0.975  0.177  1.0
  Co  Co36  1  0.975  0.702  0.177  1.0
  Co  Co37  1  0.202  0.475  0.177  1.0
  Pb  Pb38  1  0.250  0.250  0.500  1.0
  Pb  Pb39  1  0.750  0.750  0.500  1.0
[/CIF]
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The material structure described by La6Co13Pb crystallizes in the tetragonal I4/mcm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 13-coordinate geometry to four equivalent Co(2), four equivalent Co(3), four equivalent Co(4), and one Pb(1) atom. In the second La site, La(2) is bonded in a 6-coordinate geometry to one Co(3), three equivalent Co(4), and two equivalent Pb(1) atoms. There are four inequivalent Co sites. In the first Co site, Co(3) is bonded in a 12-coordinate geometry to one La(2), two equivalent La(1), one Co(1), one Co(3), three equivalent Co(4), and four equivalent Co(2) atoms. In the second Co site, Co(4) is bonded in a 12-coordinate geometry to two equivalent La(1), three equivalent La(2), one Co(1), one Co(4), two equivalent Co(2), and three equivalent Co(3) atoms. In the third Co site, Co(1) is bonded to four equivalent Co(2), four equivalent Co(3), and four equivalent Co(4) atoms to form a mixture of face and corner-sharing CoCo12 cuboctahedra. In the fourth Co site, Co(2) is bonded to two equivalent La(1), one Co(1), two equivalent Co(4), three equivalent Co(2), and four equivalent Co(3) atoms to form distorted CoLa2Co10 cuboctahedra that share  a cornercorner with one Co(1)Co12 cuboctahedra, corners with three equivalent Co(2)La2Co10 cuboctahedra, faces with two equivalent Co(1)Co12 cuboctahedra, and faces with seven equivalent Co(2)La2Co10 cuboctahedra. Pb(1) is bonded in a distorted q6 geometry to two equivalent La(1) and eight equivalent La(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_La6Co13Pb
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.085
_cell_length_b   8.085
_cell_length_c   12.868
_cell_angle_alpha   108.309
_cell_angle_beta   108.309
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   753.477
_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
  La  La0  1  0.600  0.600  0.199  1.0
  La  La1  1  0.100  0.100  0.199  1.0
  La  La2  1  0.400  0.400  0.801  1.0
  La  La3  1  0.900  0.900  0.801  1.0
  La  La4  1  0.981  0.481  0.640  1.0
  La  La5  1  0.659  0.159  0.640  1.0
  La  La6  1  0.159  0.981  0.640  1.0
  La  La7  1  0.481  0.659  0.640  1.0
  La  La8  1  0.019  0.519  0.360  1.0
  La  La9  1  0.341  0.841  0.360  1.0
  La  La10  1  0.841  0.019  0.360  1.0
  La  La11  1  0.519  0.341  0.360  1.0
  Co  Co12  1  0.000  0.500  0.000  1.0
  Co  Co13  1  0.500  0.000  0.000  1.0
  Co  Co14  1  0.715  0.565  0.000  1.0
  Co  Co15  1  0.285  0.435  0.000  1.0
  Co  Co16  1  0.785  0.065  0.000  1.0
  Co  Co17  1  0.215  0.935  0.000  1.0
  Co  Co18  1  0.565  0.285  0.000  1.0
  Co  Co19  1  0.435  0.715  0.000  1.0
  Co  Co20  1  0.065  0.215  0.000  1.0
  Co  Co21  1  0.935  0.785  0.000  1.0
  Co  Co22  1  0.121  0.621  0.888  1.0
  Co  Co23  1  0.767  0.267  0.888  1.0
  Co  Co24  1  0.267  0.121  0.888  1.0
  Co  Co25  1  0.621  0.767  0.888  1.0
  Co  Co26  1  0.879  0.379  0.112  1.0
  Co  Co27  1  0.233  0.733  0.112  1.0
  Co  Co28  1  0.733  0.879  0.112  1.0
  Co  Co29  1  0.379  0.233  0.112  1.0
  Co  Co30  1  0.298  0.798  0.823  1.0
  Co  Co31  1  0.525  0.025  0.823  1.0
  Co  Co32  1  0.025  0.298  0.823  1.0
  Co  Co33  1  0.798  0.525  0.823  1.0
  Co  Co34  1  0.702  0.202  0.177  1.0
  Co  Co35  1  0.475  0.975  0.177  1.0
  Co  Co36  1  0.975  0.702  0.177  1.0
  Co  Co37  1  0.202  0.475  0.177  1.0
  Pb  Pb38  1  0.250  0.250  0.500  1.0
  Pb  Pb39  1  0.750  0.750  0.500  1.0
[/CIF]
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