The material described by Sm(Ni2Sn)2 crystallizes in the tetragonal I-4c2 space group. Sm(1) is bonded in a 8-coordinate geometry to eight equivalent Ni(1) and eight equivalent Sn(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to two equivalent Sm(1), four equivalent Ni(1), and four equivalent Sn(1) atoms. Sn(1) is bonded in a 12-coordinate geometry to four equivalent Sm(1) and eight equivalent Ni(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm(Ni2Sn)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.718
_cell_length_b   6.718
_cell_length_c   6.718
_cell_angle_alpha   107.694
_cell_angle_beta   110.367
_cell_angle_gamma   110.367
_symmetry_Int_Tables_number   1
_cell_volume   233.246
_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
  Sm  Sm0  1  0.500  0.000  0.500  1.0
  Sm  Sm1  1  0.500  0.500  0.000  1.0
  Ni  Ni2  1  0.719  0.443  0.444  1.0
  Ni  Ni3  1  0.281  0.725  0.724  1.0
  Ni  Ni4  1  0.999  0.943  0.224  1.0
  Ni  Ni5  1  0.001  0.225  0.944  1.0
  Ni  Ni6  1  0.001  0.276  0.557  1.0
  Ni  Ni7  1  0.999  0.556  0.275  1.0
  Ni  Ni8  1  0.281  0.056  0.057  1.0
  Ni  Ni9  1  0.719  0.776  0.775  1.0
  Sn  Sn10  1  0.316  0.408  0.408  1.0
  Sn  Sn11  1  0.684  0.092  0.092  1.0
  Sn  Sn12  1  0.000  0.908  0.592  1.0
  Sn  Sn13  1  0.000  0.592  0.908  1.0
[/CIF]
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The material described by Sm(Ni2Sn)2 crystallizes in the tetragonal I-4c2 space group. Sm(1) is bonded in a 8-coordinate geometry to eight equivalent Ni(1) and eight equivalent Sn(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to two equivalent Sm(1), four equivalent Ni(1), and four equivalent Sn(1) atoms. Sn(1) is bonded in a 12-coordinate geometry to four equivalent Sm(1) and eight equivalent Ni(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm(Ni2Sn)2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.718
_cell_length_b   6.718
_cell_length_c   6.718
_cell_angle_alpha   107.694
_cell_angle_beta   110.367
_cell_angle_gamma   110.367
_symmetry_Int_Tables_number   1
_cell_volume   233.246
_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
  Sm  Sm0  1  0.500  0.000  0.500  1.0
  Sm  Sm1  1  0.500  0.500  0.000  1.0
  Ni  Ni2  1  0.719  0.443  0.444  1.0
  Ni  Ni3  1  0.281  0.725  0.724  1.0
  Ni  Ni4  1  0.999  0.943  0.224  1.0
  Ni  Ni5  1  0.001  0.225  0.944  1.0
  Ni  Ni6  1  0.001  0.276  0.557  1.0
  Ni  Ni7  1  0.999  0.556  0.275  1.0
  Ni  Ni8  1  0.281  0.056  0.057  1.0
  Ni  Ni9  1  0.719  0.776  0.775  1.0
  Sn  Sn10  1  0.316  0.408  0.408  1.0
  Sn  Sn11  1  0.684  0.092  0.092  1.0
  Sn  Sn12  1  0.000  0.908  0.592  1.0
  Sn  Sn13  1  0.000  0.592  0.908  1.0
[/CIF]
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