The material structure described by SrSn4 crystallizes in the orthorhombic Cmcm space group. Sr(1) is bonded in a 13-coordinate geometry to three equivalent Sn(2), four equivalent Sn(3), and six equivalent Sn(1) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(2) is bonded in a 11-coordinate geometry to three equivalent Sr(1), four equivalent Sn(1), and four equivalent Sn(3) atoms. In the second Sn site, Sn(3) is bonded in a 4-coordinate geometry to four equivalent Sr(1), two equivalent Sn(1), and four equivalent Sn(2) atoms. In the third Sn site, Sn(1) is bonded in a 9-coordinate geometry to three equivalent Sr(1), one Sn(3), two equivalent Sn(2), and three equivalent Sn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrSn4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.675
_cell_length_b   7.086
_cell_length_c   9.063
_cell_angle_alpha   90.000
_cell_angle_beta   104.947
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   290.080
_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  0.612  0.250  0.223  1.0
  Sr  Sr1  1  0.388  0.750  0.777  1.0
  Sn  Sn2  1  0.804  0.045  0.608  1.0
  Sn  Sn3  1  0.196  0.955  0.392  1.0
  Sn  Sn4  1  0.196  0.545  0.392  1.0
  Sn  Sn5  1  0.804  0.455  0.608  1.0
  Sn  Sn6  1  0.410  0.250  0.820  1.0
  Sn  Sn7  1  0.590  0.750  0.180  1.0
  Sn  Sn8  1  0.000  0.000  0.000  1.0
  Sn  Sn9  1  0.000  0.500  0.000  1.0
[/CIF]
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The material structure described by SrSn4 crystallizes in the orthorhombic Cmcm space group. Sr(1) is bonded in a 13-coordinate geometry to three equivalent Sn(2), four equivalent Sn(3), and six equivalent Sn(1) atoms. There are three inequivalent Sn sites. In the first Sn site, Sn(2) is bonded in a 11-coordinate geometry to three equivalent Sr(1), four equivalent Sn(1), and four equivalent Sn(3) atoms. In the second Sn site, Sn(3) is bonded in a 4-coordinate geometry to four equivalent Sr(1), two equivalent Sn(1), and four equivalent Sn(2) atoms. In the third Sn site, Sn(1) is bonded in a 9-coordinate geometry to three equivalent Sr(1), one Sn(3), two equivalent Sn(2), and three equivalent Sn(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrSn4
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.675
_cell_length_b   7.086
_cell_length_c   9.063
_cell_angle_alpha   90.000
_cell_angle_beta   104.947
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   290.080
_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  0.612  0.250  0.223  1.0
  Sr  Sr1  1  0.388  0.750  0.777  1.0
  Sn  Sn2  1  0.804  0.045  0.608  1.0
  Sn  Sn3  1  0.196  0.955  0.392  1.0
  Sn  Sn4  1  0.196  0.545  0.392  1.0
  Sn  Sn5  1  0.804  0.455  0.608  1.0
  Sn  Sn6  1  0.410  0.250  0.820  1.0
  Sn  Sn7  1  0.590  0.750  0.180  1.0
  Sn  Sn8  1  0.000  0.000  0.000  1.0
  Sn  Sn9  1  0.000  0.500  0.000  1.0
[/CIF]
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