The structure described by AgErSn2 is Uranium Silicide-derived structured and crystallizes in the tetragonal P4/mmm space group. Er(1) is bonded to four equivalent Ag(1) and eight equivalent Sn(1) atoms to form ErAg4Sn8 cuboctahedra that share corners with twelve equivalent Er(1)Ag4Sn8 cuboctahedra, edges with eight equivalent Ag(1)Er4Sn8 cuboctahedra, edges with sixteen equivalent Sn(1)Er4Ag4Sn4 cuboctahedra, faces with four equivalent Ag(1)Er4Sn8 cuboctahedra, faces with six equivalent Er(1)Ag4Sn8 cuboctahedra, and faces with eight equivalent Sn(1)Er4Ag4Sn4 cuboctahedra. Ag(1) is bonded to four equivalent Er(1) and eight equivalent Sn(1) atoms to form AgEr4Sn8 cuboctahedra that share corners with twelve equivalent Ag(1)Er4Sn8 cuboctahedra, edges with eight equivalent Er(1)Ag4Sn8 cuboctahedra, edges with sixteen equivalent Sn(1)Er4Ag4Sn4 cuboctahedra, faces with four equivalent Er(1)Ag4Sn8 cuboctahedra, faces with six equivalent Ag(1)Er4Sn8 cuboctahedra, and faces with eight equivalent Sn(1)Er4Ag4Sn4 cuboctahedra. Sn(1) is bonded to four equivalent Er(1), four equivalent Ag(1), and four equivalent Sn(1) atoms to form distorted SnEr4Ag4Sn4 cuboctahedra that share corners with twelve equivalent Sn(1)Er4Ag4Sn4 cuboctahedra, edges with eight equivalent Er(1)Ag4Sn8 cuboctahedra, edges with eight equivalent Ag(1)Er4Sn8 cuboctahedra, edges with eight equivalent Sn(1)Er4Ag4Sn4 cuboctahedra, faces with four equivalent Er(1)Ag4Sn8 cuboctahedra, faces with four equivalent Ag(1)Er4Sn8 cuboctahedra, and faces with ten equivalent Sn(1)Er4Ag4Sn4 cuboctahedra. is represented by the CIF file [CIF]
data_ErAgSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.605
_cell_length_b   4.605
_cell_length_c   4.343
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   92.080
_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
  Er  Er0  1  0.000  0.000  0.000  1.0
  Ag  Ag1  1  0.500  0.500  0.000  1.0
  Sn  Sn2  1  0.000  0.500  0.500  1.0
  Sn  Sn3  1  0.500  0.000  0.500  1.0
[/CIF]
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The structure described by AgErSn2 is Uranium Silicide-derived structured and crystallizes in the tetragonal P4/mmm space group. Er(1) is bonded to four equivalent Ag(1) and eight equivalent Sn(1) atoms to form ErAg4Sn8 cuboctahedra that share corners with twelve equivalent Er(1)Ag4Sn8 cuboctahedra, edges with eight equivalent Ag(1)Er4Sn8 cuboctahedra, edges with sixteen equivalent Sn(1)Er4Ag4Sn4 cuboctahedra, faces with four equivalent Ag(1)Er4Sn8 cuboctahedra, faces with six equivalent Er(1)Ag4Sn8 cuboctahedra, and faces with eight equivalent Sn(1)Er4Ag4Sn4 cuboctahedra. Ag(1) is bonded to four equivalent Er(1) and eight equivalent Sn(1) atoms to form AgEr4Sn8 cuboctahedra that share corners with twelve equivalent Ag(1)Er4Sn8 cuboctahedra, edges with eight equivalent Er(1)Ag4Sn8 cuboctahedra, edges with sixteen equivalent Sn(1)Er4Ag4Sn4 cuboctahedra, faces with four equivalent Er(1)Ag4Sn8 cuboctahedra, faces with six equivalent Ag(1)Er4Sn8 cuboctahedra, and faces with eight equivalent Sn(1)Er4Ag4Sn4 cuboctahedra. Sn(1) is bonded to four equivalent Er(1), four equivalent Ag(1), and four equivalent Sn(1) atoms to form distorted SnEr4Ag4Sn4 cuboctahedra that share corners with twelve equivalent Sn(1)Er4Ag4Sn4 cuboctahedra, edges with eight equivalent Er(1)Ag4Sn8 cuboctahedra, edges with eight equivalent Ag(1)Er4Sn8 cuboctahedra, edges with eight equivalent Sn(1)Er4Ag4Sn4 cuboctahedra, faces with four equivalent Er(1)Ag4Sn8 cuboctahedra, faces with four equivalent Ag(1)Er4Sn8 cuboctahedra, and faces with ten equivalent Sn(1)Er4Ag4Sn4 cuboctahedra. is represented by the CIF file [CIF]
data_ErAgSn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.605
_cell_length_b   4.605
_cell_length_c   4.343
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   92.080
_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
  Er  Er0  1  0.000  0.000  0.000  1.0
  Ag  Ag1  1  0.500  0.500  0.000  1.0
  Sn  Sn2  1  0.000  0.500  0.500  1.0
  Sn  Sn3  1  0.500  0.000  0.500  1.0
[/CIF]
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