The crystal structure described by SmNiAl2 crystallizes in the orthorhombic Cmcm space group. Sm(1) is bonded in a 13-coordinate geometry to three equivalent Ni(1) and ten equivalent Al(1) atoms. Ni(1) is bonded in a 9-coordinate geometry to three equivalent Sm(1) and six equivalent Al(1) atoms. Al(1) is bonded in a 3-coordinate geometry to five equivalent Sm(1) and three equivalent Ni(1) atoms. is represented by the CIF file [CIF]
data_SmAl2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.032
_cell_length_b   5.710
_cell_length_c   6.860
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   110.672
_symmetry_Int_Tables_number   1
_cell_volume   147.766
_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  0.444  0.888  0.250  1.0
  Sm  Sm1  1  0.556  0.112  0.750  1.0
  Al  Al2  1  0.168  0.336  0.057  1.0
  Al  Al3  1  0.832  0.664  0.943  1.0
  Al  Al4  1  0.832  0.664  0.557  1.0
  Al  Al5  1  0.168  0.336  0.443  1.0
  Ni  Ni6  1  0.717  0.434  0.250  1.0
  Ni  Ni7  1  0.283  0.566  0.750  1.0
[/CIF]
.
The crystal structure described by SmNiAl2 crystallizes in the orthorhombic Cmcm space group. Sm(1) is bonded in a 13-coordinate geometry to three equivalent Ni(1) and ten equivalent Al(1) atoms. Ni(1) is bonded in a 9-coordinate geometry to three equivalent Sm(1) and six equivalent Al(1) atoms. Al(1) is bonded in a 3-coordinate geometry to five equivalent Sm(1) and three equivalent Ni(1) atoms. is represented by the CIF file [CIF]
data_SmAl2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.032
_cell_length_b   5.710
_cell_length_c   6.860
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   110.672
_symmetry_Int_Tables_number   1
_cell_volume   147.766
_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  0.444  0.888  0.250  1.0
  Sm  Sm1  1  0.556  0.112  0.750  1.0
  Al  Al2  1  0.168  0.336  0.057  1.0
  Al  Al3  1  0.832  0.664  0.943  1.0
  Al  Al4  1  0.832  0.664  0.557  1.0
  Al  Al5  1  0.168  0.336  0.443  1.0
  Ni  Ni6  1  0.717  0.434  0.250  1.0
  Ni  Ni7  1  0.283  0.566  0.750  1.0
[/CIF]
.