The structure described by GdSn3 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 9-coordinate geometry to one Sn(6), two equivalent Sn(2), two equivalent Sn(3), and four equivalent Sn(1) atoms. In the second Gd site, Gd(2) is bonded in a 10-coordinate geometry to two equivalent Sn(2), two equivalent Sn(5), two equivalent Sn(6), and four equivalent Sn(4) atoms. There are six inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 5-coordinate geometry to four equivalent Gd(1) and one Sn(5) atom. In the second Sn site, Sn(2) is bonded in a 10-coordinate geometry to two equivalent Gd(1), two equivalent Gd(2), two equivalent Sn(4), and four equivalent Sn(3) atoms. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to two equivalent Gd(1) and four equivalent Sn(2) atoms. In the fourth Sn site, Sn(4) is bonded in a distorted rectangular see-saw-like geometry to four equivalent Gd(2) and two equivalent Sn(2) atoms. In the fifth Sn site, Sn(5) is bonded in a 7-coordinate geometry to two equivalent Gd(2), one Sn(1), and four equivalent Sn(6) atoms. In the sixth Sn site, Sn(6) is bonded in a 7-coordinate geometry to one Gd(1), two equivalent Gd(2), and four equivalent Sn(5) atoms. is represented by the CIF file [CIF]
data_GdSn3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.698
_cell_length_b   11.698
_cell_length_c   4.671
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   158.078
_symmetry_Int_Tables_number   1
_cell_volume   238.677
_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
  Gd  Gd0  1  0.769  0.231  0.000  1.0
  Gd  Gd1  1  0.010  0.990  0.500  1.0
  Sn  Sn2  1  0.264  0.736  0.500  1.0
  Sn  Sn3  1  0.636  0.364  0.500  1.0
  Sn  Sn4  1  0.154  0.846  0.000  1.0
  Sn  Sn5  1  0.534  0.466  0.000  1.0
  Sn  Sn6  1  0.394  0.606  0.500  1.0
  Sn  Sn7  1  0.908  0.092  0.000  1.0
[/CIF]
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The structure described by GdSn3 crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Gd sites. In the first Gd site, Gd(1) is bonded in a 9-coordinate geometry to one Sn(6), two equivalent Sn(2), two equivalent Sn(3), and four equivalent Sn(1) atoms. In the second Gd site, Gd(2) is bonded in a 10-coordinate geometry to two equivalent Sn(2), two equivalent Sn(5), two equivalent Sn(6), and four equivalent Sn(4) atoms. There are six inequivalent Sn sites. In the first Sn site, Sn(1) is bonded in a 5-coordinate geometry to four equivalent Gd(1) and one Sn(5) atom. In the second Sn site, Sn(2) is bonded in a 10-coordinate geometry to two equivalent Gd(1), two equivalent Gd(2), two equivalent Sn(4), and four equivalent Sn(3) atoms. In the third Sn site, Sn(3) is bonded in a 6-coordinate geometry to two equivalent Gd(1) and four equivalent Sn(2) atoms. In the fourth Sn site, Sn(4) is bonded in a distorted rectangular see-saw-like geometry to four equivalent Gd(2) and two equivalent Sn(2) atoms. In the fifth Sn site, Sn(5) is bonded in a 7-coordinate geometry to two equivalent Gd(2), one Sn(1), and four equivalent Sn(6) atoms. In the sixth Sn site, Sn(6) is bonded in a 7-coordinate geometry to one Gd(1), two equivalent Gd(2), and four equivalent Sn(5) atoms. is represented by the CIF file [CIF]
data_GdSn3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   11.698
_cell_length_b   11.698
_cell_length_c   4.671
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   158.078
_symmetry_Int_Tables_number   1
_cell_volume   238.677
_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
  Gd  Gd0  1  0.769  0.231  0.000  1.0
  Gd  Gd1  1  0.010  0.990  0.500  1.0
  Sn  Sn2  1  0.264  0.736  0.500  1.0
  Sn  Sn3  1  0.636  0.364  0.500  1.0
  Sn  Sn4  1  0.154  0.846  0.000  1.0
  Sn  Sn5  1  0.534  0.466  0.000  1.0
  Sn  Sn6  1  0.394  0.606  0.500  1.0
  Sn  Sn7  1  0.908  0.092  0.000  1.0
[/CIF]
.