The material structure described by SmNiGa2 crystallizes in the orthorhombic Cmmm space group. Sm(1) is bonded in a 14-coordinate geometry to four equivalent Ni(1), two equivalent Ga(2), two equivalent Ga(3), and six equivalent Ga(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to four equivalent Sm(1), one Ni(1), one Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to six equivalent Sm(1), one Ni(1), and two equivalent Ga(1) atoms. In the second Ga site, Ga(2) is bonded in a 4-coordinate geometry to four equivalent Sm(1) and four equivalent Ni(1) atoms. In the third Ga site, Ga(3) is bonded in a 4-coordinate geometry to four equivalent Sm(1) and four equivalent Ni(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SmGa2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.107
_cell_length_b   4.140
_cell_length_c   8.906
_cell_angle_alpha   103.435
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   147.289
_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  0.358  0.716  1.0
  Sm  Sm1  1  0.500  0.642  0.284  1.0
  Ga  Ga2  1  0.000  0.209  0.419  1.0
  Ga  Ga3  1  0.000  0.790  0.581  1.0
  Ga  Ga4  1  0.500  0.000  0.000  1.0
  Ga  Ga5  1  0.000  0.500  0.000  1.0
  Ni  Ni6  1  0.000  0.074  0.146  1.0
  Ni  Ni7  1  1.000  0.926  0.854  1.0
[/CIF]
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The material structure described by SmNiGa2 crystallizes in the orthorhombic Cmmm space group. Sm(1) is bonded in a 14-coordinate geometry to four equivalent Ni(1), two equivalent Ga(2), two equivalent Ga(3), and six equivalent Ga(1) atoms. Ni(1) is bonded in a 10-coordinate geometry to four equivalent Sm(1), one Ni(1), one Ga(1), two equivalent Ga(2), and two equivalent Ga(3) atoms. There are three inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 9-coordinate geometry to six equivalent Sm(1), one Ni(1), and two equivalent Ga(1) atoms. In the second Ga site, Ga(2) is bonded in a 4-coordinate geometry to four equivalent Sm(1) and four equivalent Ni(1) atoms. In the third Ga site, Ga(3) is bonded in a 4-coordinate geometry to four equivalent Sm(1) and four equivalent Ni(1) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SmGa2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.107
_cell_length_b   4.140
_cell_length_c   8.906
_cell_angle_alpha   103.435
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   147.289
_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  0.358  0.716  1.0
  Sm  Sm1  1  0.500  0.642  0.284  1.0
  Ga  Ga2  1  0.000  0.209  0.419  1.0
  Ga  Ga3  1  0.000  0.790  0.581  1.0
  Ga  Ga4  1  0.500  0.000  0.000  1.0
  Ga  Ga5  1  0.000  0.500  0.000  1.0
  Ni  Ni6  1  0.000  0.074  0.146  1.0
  Ni  Ni7  1  1.000  0.926  0.854  1.0
[/CIF]
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