The material described by Cu10Sn3 crystallizes in the trigonal P-31m space group. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 5-coordinate geometry to one Cu(2), two equivalent Cu(1), and two equivalent Sn(1) atoms. In the second Cu site, Cu(2) is bonded in a 6-coordinate geometry to three equivalent Cu(1) and three equivalent Cu(3) atoms. In the third Cu site, Cu(3) is bonded in a 5-coordinate geometry to one Cu(2), two equivalent Cu(4), two equivalent Sn(1), and two equivalent Sn(2) atoms. In the fourth Cu site, Cu(4) is bonded in a 6-coordinate geometry to two equivalent Cu(3), two equivalent Cu(4), and two equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to three equivalent Cu(1), three equivalent Cu(3), and one Sn(2) atom. In the second Sn site, Sn(2) is bonded in a 14-coordinate geometry to six equivalent Cu(3), six equivalent Cu(4), and two equivalent Sn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cu10Sn3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.225
_cell_length_b   7.225
_cell_length_c   8.780
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   396.908
_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
  Cu  Cu0  1  0.318  0.000  0.555  1.0
  Cu  Cu1  1  0.000  0.000  0.661  1.0
  Cu  Cu2  1  0.000  0.682  0.445  1.0
  Cu  Cu3  1  0.000  0.317  0.233  1.0
  Cu  Cu4  1  0.683  0.683  0.233  1.0
  Cu  Cu5  1  0.682  0.682  0.555  1.0
  Cu  Cu6  1  0.000  0.000  0.339  1.0
  Cu  Cu7  1  0.272  0.000  0.909  1.0
  Cu  Cu8  1  0.317  0.000  0.233  1.0
  Cu  Cu9  1  0.000  0.272  0.909  1.0
  Cu  Cu10  1  0.682  0.000  0.445  1.0
  Cu  Cu11  1  0.000  0.318  0.555  1.0
  Cu  Cu12  1  0.317  0.317  0.767  1.0
  Cu  Cu13  1  0.272  0.272  0.091  1.0
  Cu  Cu14  1  0.000  0.683  0.767  1.0
  Cu  Cu15  1  0.683  0.000  0.767  1.0
  Cu  Cu16  1  0.000  0.728  0.091  1.0
  Cu  Cu17  1  0.728  0.728  0.909  1.0
  Cu  Cu18  1  0.318  0.318  0.445  1.0
  Cu  Cu19  1  0.728  0.000  0.091  1.0
  Sn  Sn20  1  0.333  0.667  0.333  1.0
  Sn  Sn21  1  0.333  0.667  0.667  1.0
  Sn  Sn22  1  0.667  0.333  0.667  1.0
  Sn  Sn23  1  0.667  0.333  0.333  1.0
  Sn  Sn24  1  0.667  0.333  0.000  1.0
  Sn  Sn25  1  0.333  0.667  0.000  1.0
[/CIF]
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The material described by Cu10Sn3 crystallizes in the trigonal P-31m space group. There are four inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 5-coordinate geometry to one Cu(2), two equivalent Cu(1), and two equivalent Sn(1) atoms. In the second Cu site, Cu(2) is bonded in a 6-coordinate geometry to three equivalent Cu(1) and three equivalent Cu(3) atoms. In the third Cu site, Cu(3) is bonded in a 5-coordinate geometry to one Cu(2), two equivalent Cu(4), two equivalent Sn(1), and two equivalent Sn(2) atoms. In the fourth Cu site, Cu(4) is bonded in a 6-coordinate geometry to two equivalent Cu(3), two equivalent Cu(4), and two equivalent Sn(2) atoms. There are two inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 6-coordinate geometry to three equivalent Cu(1), three equivalent Cu(3), and one Sn(2) atom. In the second Sn site, Sn(2) is bonded in a 14-coordinate geometry to six equivalent Cu(3), six equivalent Cu(4), and two equivalent Sn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Cu10Sn3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.225
_cell_length_b   7.225
_cell_length_c   8.780
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   396.908
_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
  Cu  Cu0  1  0.318  0.000  0.555  1.0
  Cu  Cu1  1  0.000  0.000  0.661  1.0
  Cu  Cu2  1  0.000  0.682  0.445  1.0
  Cu  Cu3  1  0.000  0.317  0.233  1.0
  Cu  Cu4  1  0.683  0.683  0.233  1.0
  Cu  Cu5  1  0.682  0.682  0.555  1.0
  Cu  Cu6  1  0.000  0.000  0.339  1.0
  Cu  Cu7  1  0.272  0.000  0.909  1.0
  Cu  Cu8  1  0.317  0.000  0.233  1.0
  Cu  Cu9  1  0.000  0.272  0.909  1.0
  Cu  Cu10  1  0.682  0.000  0.445  1.0
  Cu  Cu11  1  0.000  0.318  0.555  1.0
  Cu  Cu12  1  0.317  0.317  0.767  1.0
  Cu  Cu13  1  0.272  0.272  0.091  1.0
  Cu  Cu14  1  0.000  0.683  0.767  1.0
  Cu  Cu15  1  0.683  0.000  0.767  1.0
  Cu  Cu16  1  0.000  0.728  0.091  1.0
  Cu  Cu17  1  0.728  0.728  0.909  1.0
  Cu  Cu18  1  0.318  0.318  0.445  1.0
  Cu  Cu19  1  0.728  0.000  0.091  1.0
  Sn  Sn20  1  0.333  0.667  0.333  1.0
  Sn  Sn21  1  0.333  0.667  0.667  1.0
  Sn  Sn22  1  0.667  0.333  0.667  1.0
  Sn  Sn23  1  0.667  0.333  0.333  1.0
  Sn  Sn24  1  0.667  0.333  0.000  1.0
  Sn  Sn25  1  0.333  0.667  0.000  1.0
[/CIF]
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