The compound described by SrCu4Sn2 crystallizes in the tetragonal I4/mcm space group. Sr(1) is bonded in a 8-coordinate geometry to eight equivalent Cu(1) and eight equivalent Sn(1) atoms. Cu(1) is bonded in a 9-coordinate geometry to two equivalent Sr(1), three equivalent Cu(1), and four equivalent Sn(1) atoms. Sn(1) is bonded in a 12-coordinate geometry to four equivalent Sr(1) and eight equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_Sr(Cu2Sn)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.003
_cell_length_b   7.003
_cell_length_c   7.003
_cell_angle_alpha   108.230
_cell_angle_beta   108.230
_cell_angle_gamma   111.983
_symmetry_Int_Tables_number   1
_cell_volume   264.019
_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
  Sr  Sr0  1  0.750  0.750  0.000  1.0
  Sr  Sr1  1  0.250  0.250  0.000  1.0
  Cu  Cu2  1  0.475  0.975  0.771  1.0
  Cu  Cu3  1  0.203  0.703  0.229  1.0
  Cu  Cu4  1  0.703  0.475  0.500  1.0
  Cu  Cu5  1  0.975  0.203  0.500  1.0
  Cu  Cu6  1  0.525  0.025  0.229  1.0
  Cu  Cu7  1  0.797  0.297  0.771  1.0
  Cu  Cu8  1  0.297  0.525  0.500  1.0
  Cu  Cu9  1  0.025  0.797  0.500  1.0
  Sn  Sn10  1  0.161  0.661  0.821  1.0
  Sn  Sn11  1  0.839  0.339  0.179  1.0
  Sn  Sn12  1  0.339  0.161  0.500  1.0
  Sn  Sn13  1  0.661  0.839  0.500  1.0
[/CIF]
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The compound described by SrCu4Sn2 crystallizes in the tetragonal I4/mcm space group. Sr(1) is bonded in a 8-coordinate geometry to eight equivalent Cu(1) and eight equivalent Sn(1) atoms. Cu(1) is bonded in a 9-coordinate geometry to two equivalent Sr(1), three equivalent Cu(1), and four equivalent Sn(1) atoms. Sn(1) is bonded in a 12-coordinate geometry to four equivalent Sr(1) and eight equivalent Cu(1) atoms. is represented by the CIF card [CIF]
data_Sr(Cu2Sn)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.003
_cell_length_b   7.003
_cell_length_c   7.003
_cell_angle_alpha   108.230
_cell_angle_beta   108.230
_cell_angle_gamma   111.983
_symmetry_Int_Tables_number   1
_cell_volume   264.019
_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
  Sr  Sr0  1  0.750  0.750  0.000  1.0
  Sr  Sr1  1  0.250  0.250  0.000  1.0
  Cu  Cu2  1  0.475  0.975  0.771  1.0
  Cu  Cu3  1  0.203  0.703  0.229  1.0
  Cu  Cu4  1  0.703  0.475  0.500  1.0
  Cu  Cu5  1  0.975  0.203  0.500  1.0
  Cu  Cu6  1  0.525  0.025  0.229  1.0
  Cu  Cu7  1  0.797  0.297  0.771  1.0
  Cu  Cu8  1  0.297  0.525  0.500  1.0
  Cu  Cu9  1  0.025  0.797  0.500  1.0
  Sn  Sn10  1  0.161  0.661  0.821  1.0
  Sn  Sn11  1  0.839  0.339  0.179  1.0
  Sn  Sn12  1  0.339  0.161  0.500  1.0
  Sn  Sn13  1  0.661  0.839  0.500  1.0
[/CIF]
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