The structure described by La3Co2Sn7 crystallizes in the orthorhombic Cmmm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 14-coordinate geometry to two equivalent Co(1), four equivalent Sn(2), four equivalent Sn(3), and four equivalent Sn(4) atoms. In the second La site, La(2) is bonded in a 14-coordinate geometry to four equivalent Co(1), two equivalent Sn(2), two equivalent Sn(4), and six equivalent Sn(1) atoms. Co(1) is bonded in a 5-coordinate geometry to one La(1), four equivalent La(2), one Sn(1), two equivalent Sn(2), and two equivalent Sn(4) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to six equivalent La(2), one Co(1), and two equivalent Sn(1) atoms. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to two equivalent La(1), two equivalent La(2), and two equivalent Co(1) atoms. In the third Sn site, Sn(3) is bonded in a square co-planar geometry to four equivalent La(1) atoms. In the fourth Sn site, Sn(4) is bonded in a 6-coordinate geometry to two equivalent La(1), two equivalent La(2), and two equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_La3Co2Sn7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.604
_cell_length_b   4.631
_cell_length_c   14.061
_cell_angle_alpha   90.000
_cell_angle_beta   99.423
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   295.768
_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
  La  La0  1  0.500  0.500  0.000  1.0
  La  La1  1  0.185  0.000  0.369  1.0
  La  La2  1  0.815  0.000  0.631  1.0
  Co  Co3  1  0.628  0.500  0.255  1.0
  Co  Co4  1  0.372  0.500  0.745  1.0
  Sn  Sn5  1  0.717  0.500  0.434  1.0
  Sn  Sn6  1  0.283  0.500  0.565  1.0
  Sn  Sn7  1  0.591  0.000  0.182  1.0
  Sn  Sn8  1  0.000  0.000  0.000  1.0
  Sn  Sn9  1  0.409  0.000  0.818  1.0
  Sn  Sn10  1  0.909  0.500  0.819  1.0
  Sn  Sn11  1  0.091  0.500  0.181  1.0
[/CIF]
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The structure described by La3Co2Sn7 crystallizes in the orthorhombic Cmmm space group. There are two inequivalent La sites. In the first La site, La(1) is bonded in a 14-coordinate geometry to two equivalent Co(1), four equivalent Sn(2), four equivalent Sn(3), and four equivalent Sn(4) atoms. In the second La site, La(2) is bonded in a 14-coordinate geometry to four equivalent Co(1), two equivalent Sn(2), two equivalent Sn(4), and six equivalent Sn(1) atoms. Co(1) is bonded in a 5-coordinate geometry to one La(1), four equivalent La(2), one Sn(1), two equivalent Sn(2), and two equivalent Sn(4) atoms. There are four inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 9-coordinate geometry to six equivalent La(2), one Co(1), and two equivalent Sn(1) atoms. In the second Sn site, Sn(2) is bonded in a 6-coordinate geometry to two equivalent La(1), two equivalent La(2), and two equivalent Co(1) atoms. In the third Sn site, Sn(3) is bonded in a square co-planar geometry to four equivalent La(1) atoms. In the fourth Sn site, Sn(4) is bonded in a 6-coordinate geometry to two equivalent La(1), two equivalent La(2), and two equivalent Co(1) atoms. is represented by the CIF file [CIF]
data_La3Co2Sn7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.604
_cell_length_b   4.631
_cell_length_c   14.061
_cell_angle_alpha   90.000
_cell_angle_beta   99.423
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   295.768
_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
  La  La0  1  0.500  0.500  0.000  1.0
  La  La1  1  0.185  0.000  0.369  1.0
  La  La2  1  0.815  0.000  0.631  1.0
  Co  Co3  1  0.628  0.500  0.255  1.0
  Co  Co4  1  0.372  0.500  0.745  1.0
  Sn  Sn5  1  0.717  0.500  0.434  1.0
  Sn  Sn6  1  0.283  0.500  0.565  1.0
  Sn  Sn7  1  0.591  0.000  0.182  1.0
  Sn  Sn8  1  0.000  0.000  0.000  1.0
  Sn  Sn9  1  0.409  0.000  0.818  1.0
  Sn  Sn10  1  0.909  0.500  0.819  1.0
  Sn  Sn11  1  0.091  0.500  0.181  1.0
[/CIF]
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