The compound described by Li2CuSn is Zintl Phase-derived structured and crystallizes in the cubic F-43m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to four equivalent Cu(1) and six equivalent Sn(1) atoms to form distorted LiCu4Sn6 tetrahedra that share corners with six equivalent Li(1)Cu4Sn6 tetrahedra, edges with twelve equivalent Li(2)Cu6Sn4 tetrahedra, faces with four equivalent Li(2)Cu6Sn4 tetrahedra, and faces with twelve equivalent Li(1)Cu4Sn6 tetrahedra. In the second Li site, Li(2) is bonded to six equivalent Cu(1) and four equivalent Sn(1) atoms to form distorted LiCu6Sn4 tetrahedra that share corners with six equivalent Li(2)Cu6Sn4 tetrahedra, edges with twelve equivalent Li(1)Cu4Sn6 tetrahedra, faces with four equivalent Li(1)Cu4Sn6 tetrahedra, and faces with twelve equivalent Li(2)Cu6Sn4 tetrahedra. Cu(1) is bonded in a 14-coordinate geometry to four equivalent Li(1), six equivalent Li(2), and four equivalent Sn(1) atoms. Sn(1) is bonded in a 14-coordinate geometry to four equivalent Li(2), six equivalent Li(1), and four equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_Li2CuSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.412
_cell_length_b   4.412
_cell_length_c   4.412
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   60.716
_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
  Li  Li0  1  0.500  0.500  0.500  1.0
  Li  Li1  1  0.250  0.250  0.250  1.0
  Cu  Cu2  1  0.750  0.750  0.750  1.0
  Sn  Sn3  1  0.000  0.000  0.000  1.0
[/CIF]
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The compound described by Li2CuSn is Zintl Phase-derived structured and crystallizes in the cubic F-43m space group. There are two inequivalent Li sites. In the first Li site, Li(1) is bonded to four equivalent Cu(1) and six equivalent Sn(1) atoms to form distorted LiCu4Sn6 tetrahedra that share corners with six equivalent Li(1)Cu4Sn6 tetrahedra, edges with twelve equivalent Li(2)Cu6Sn4 tetrahedra, faces with four equivalent Li(2)Cu6Sn4 tetrahedra, and faces with twelve equivalent Li(1)Cu4Sn6 tetrahedra. In the second Li site, Li(2) is bonded to six equivalent Cu(1) and four equivalent Sn(1) atoms to form distorted LiCu6Sn4 tetrahedra that share corners with six equivalent Li(2)Cu6Sn4 tetrahedra, edges with twelve equivalent Li(1)Cu4Sn6 tetrahedra, faces with four equivalent Li(1)Cu4Sn6 tetrahedra, and faces with twelve equivalent Li(2)Cu6Sn4 tetrahedra. Cu(1) is bonded in a 14-coordinate geometry to four equivalent Li(1), six equivalent Li(2), and four equivalent Sn(1) atoms. Sn(1) is bonded in a 14-coordinate geometry to four equivalent Li(2), six equivalent Li(1), and four equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_Li2CuSn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.412
_cell_length_b   4.412
_cell_length_c   4.412
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   60.716
_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
  Li  Li0  1  0.500  0.500  0.500  1.0
  Li  Li1  1  0.250  0.250  0.250  1.0
  Cu  Cu2  1  0.750  0.750  0.750  1.0
  Sn  Sn3  1  0.000  0.000  0.000  1.0
[/CIF]
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