The crystal structure described by Sn3Ag crystallizes in the hexagonal P6_3/mmc space group. Ag(1) is bonded to twelve equivalent Sn(1) atoms to form AgSn12 cuboctahedra that share corners with six equivalent Ag(1)Sn12 cuboctahedra, corners with twelve equivalent Sn(1)Ag4Sn8 cuboctahedra, edges with eighteen equivalent Sn(1)Ag4Sn8 cuboctahedra, faces with eight equivalent Ag(1)Sn12 cuboctahedra, and faces with twelve equivalent Sn(1)Ag4Sn8 cuboctahedra. Sn(1) is bonded to four equivalent Ag(1) and eight equivalent Sn(1) atoms to form distorted SnAg4Sn8 cuboctahedra that share corners with four equivalent Ag(1)Sn12 cuboctahedra, corners with fourteen equivalent Sn(1)Ag4Sn8 cuboctahedra, edges with six equivalent Ag(1)Sn12 cuboctahedra, edges with twelve equivalent Sn(1)Ag4Sn8 cuboctahedra, faces with four equivalent Ag(1)Sn12 cuboctahedra, and faces with sixteen equivalent Sn(1)Ag4Sn8 cuboctahedra. is represented by the CIF card [CIF]
data_AgSn3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.773
_cell_length_b   6.773
_cell_length_c   5.156
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   204.848
_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
  Ag  Ag0  1  0.333  0.667  0.750  1.0
  Ag  Ag1  1  0.667  0.333  0.250  1.0
  Sn  Sn2  1  0.170  0.339  0.250  1.0
  Sn  Sn3  1  0.661  0.830  0.250  1.0
  Sn  Sn4  1  0.170  0.830  0.250  1.0
  Sn  Sn5  1  0.830  0.661  0.750  1.0
  Sn  Sn6  1  0.339  0.170  0.750  1.0
  Sn  Sn7  1  0.830  0.170  0.750  1.0
[/CIF]
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The crystal structure described by Sn3Ag crystallizes in the hexagonal P6_3/mmc space group. Ag(1) is bonded to twelve equivalent Sn(1) atoms to form AgSn12 cuboctahedra that share corners with six equivalent Ag(1)Sn12 cuboctahedra, corners with twelve equivalent Sn(1)Ag4Sn8 cuboctahedra, edges with eighteen equivalent Sn(1)Ag4Sn8 cuboctahedra, faces with eight equivalent Ag(1)Sn12 cuboctahedra, and faces with twelve equivalent Sn(1)Ag4Sn8 cuboctahedra. Sn(1) is bonded to four equivalent Ag(1) and eight equivalent Sn(1) atoms to form distorted SnAg4Sn8 cuboctahedra that share corners with four equivalent Ag(1)Sn12 cuboctahedra, corners with fourteen equivalent Sn(1)Ag4Sn8 cuboctahedra, edges with six equivalent Ag(1)Sn12 cuboctahedra, edges with twelve equivalent Sn(1)Ag4Sn8 cuboctahedra, faces with four equivalent Ag(1)Sn12 cuboctahedra, and faces with sixteen equivalent Sn(1)Ag4Sn8 cuboctahedra. is represented by the CIF card [CIF]
data_AgSn3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.773
_cell_length_b   6.773
_cell_length_c   5.156
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   204.848
_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
  Ag  Ag0  1  0.333  0.667  0.750  1.0
  Ag  Ag1  1  0.667  0.333  0.250  1.0
  Sn  Sn2  1  0.170  0.339  0.250  1.0
  Sn  Sn3  1  0.661  0.830  0.250  1.0
  Sn  Sn4  1  0.170  0.830  0.250  1.0
  Sn  Sn5  1  0.830  0.661  0.750  1.0
  Sn  Sn6  1  0.339  0.170  0.750  1.0
  Sn  Sn7  1  0.830  0.170  0.750  1.0
[/CIF]
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