The material structure described by Ga3Sm5 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 4-coordinate geometry to two equivalent Ga(1) and four equivalent Ga(2) atoms. In the second Sm site, Sm(2) is bonded to two equivalent Ga(1) and three equivalent Ga(2) atoms to form a mixture of distorted edge, face, and corner-sharing SmGa5 trigonal bipyramids. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to two equivalent Sm(1) and eight equivalent Sm(2) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to two equivalent Sm(1), six equivalent Sm(2), and one Ga(2) atom. is represented by the CIF card [CIF]
data_Sm5Ga3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.069
_cell_length_b   9.069
_cell_length_c   9.068
_cell_angle_alpha   129.315
_cell_angle_beta   129.315
_cell_angle_gamma   74.517
_symmetry_Int_Tables_number   1
_cell_volume   434.959
_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  0.500  0.000  1.0
  Sm  Sm1  1  0.000  0.000  0.000  1.0
  Sm  Sm2  1  0.525  0.025  0.846  1.0
  Sm  Sm3  1  0.179  0.679  0.154  1.0
  Sm  Sm4  1  0.025  0.179  0.500  1.0
  Sm  Sm5  1  0.679  0.525  0.500  1.0
  Sm  Sm6  1  0.475  0.975  0.154  1.0
  Sm  Sm7  1  0.821  0.321  0.846  1.0
  Sm  Sm8  1  0.975  0.821  0.500  1.0
  Sm  Sm9  1  0.321  0.475  0.500  1.0
  Ga  Ga10  1  0.250  0.250  0.000  1.0
  Ga  Ga11  1  0.750  0.750  0.000  1.0
  Ga  Ga12  1  0.882  0.382  0.264  1.0
  Ga  Ga13  1  0.118  0.618  0.736  1.0
  Ga  Ga14  1  0.382  0.118  0.500  1.0
  Ga  Ga15  1  0.618  0.882  0.500  1.0
[/CIF]
.
The material structure described by Ga3Sm5 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 4-coordinate geometry to two equivalent Ga(1) and four equivalent Ga(2) atoms. In the second Sm site, Sm(2) is bonded to two equivalent Ga(1) and three equivalent Ga(2) atoms to form a mixture of distorted edge, face, and corner-sharing SmGa5 trigonal bipyramids. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to two equivalent Sm(1) and eight equivalent Sm(2) atoms. In the second Ga site, Ga(2) is bonded in a 9-coordinate geometry to two equivalent Sm(1), six equivalent Sm(2), and one Ga(2) atom. is represented by the CIF card [CIF]
data_Sm5Ga3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.069
_cell_length_b   9.069
_cell_length_c   9.068
_cell_angle_alpha   129.315
_cell_angle_beta   129.315
_cell_angle_gamma   74.517
_symmetry_Int_Tables_number   1
_cell_volume   434.959
_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  0.500  0.000  1.0
  Sm  Sm1  1  0.000  0.000  0.000  1.0
  Sm  Sm2  1  0.525  0.025  0.846  1.0
  Sm  Sm3  1  0.179  0.679  0.154  1.0
  Sm  Sm4  1  0.025  0.179  0.500  1.0
  Sm  Sm5  1  0.679  0.525  0.500  1.0
  Sm  Sm6  1  0.475  0.975  0.154  1.0
  Sm  Sm7  1  0.821  0.321  0.846  1.0
  Sm  Sm8  1  0.975  0.821  0.500  1.0
  Sm  Sm9  1  0.321  0.475  0.500  1.0
  Ga  Ga10  1  0.250  0.250  0.000  1.0
  Ga  Ga11  1  0.750  0.750  0.000  1.0
  Ga  Ga12  1  0.882  0.382  0.264  1.0
  Ga  Ga13  1  0.118  0.618  0.736  1.0
  Ga  Ga14  1  0.382  0.118  0.500  1.0
  Ga  Ga15  1  0.618  0.882  0.500  1.0
[/CIF]
.