The compound described by SmCo3Ga2 crystallizes in the orthorhombic Cmmm space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a hexagonal planar geometry to two equivalent Co(3), four equivalent Co(4), four equivalent Ga(1), and eight equivalent Ga(2) atoms. In the second Sm site, Sm(2) is bonded in a 18-coordinate geometry to two equivalent Co(1), two equivalent Co(3), four equivalent Co(2), four equivalent Co(4), two equivalent Ga(1), and four equivalent Ga(2) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to four equivalent Sm(2), four equivalent Co(4), and four equivalent Ga(1) atoms to form a mixture of face and corner-sharing CoSm4Ga4Co4 cuboctahedra. In the second Co site, Co(2) is bonded to four equivalent Sm(2), two equivalent Co(3), two equivalent Co(4), and four equivalent Ga(2) atoms to form a mixture of face and corner-sharing CoSm4Ga4Co4 cuboctahedra. In the third Co site, Co(3) is bonded in a 9-coordinate geometry to one Sm(1), two equivalent Sm(2), two equivalent Co(2), and four equivalent Ga(2) atoms. In the fourth Co site, Co(4) is bonded in a 9-coordinate geometry to one Sm(1), two equivalent Sm(2), one Co(1), one Co(2), two equivalent Ga(1), and two equivalent Ga(2) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 12-coordinate geometry to two equivalent Sm(1), two equivalent Sm(2), two equivalent Co(1), four equivalent Co(4), and two equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 12-coordinate geometry to two equivalent Sm(1), two equivalent Sm(2), two equivalent Co(2), two equivalent Co(3), two equivalent Co(4), one Ga(1), and one Ga(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_SmGa2Co3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.850
_cell_length_b   9.065
_cell_length_c   9.053
_cell_angle_alpha   120.046
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   273.496
_cell_formula_units_Z   3
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  0.000  1.000  0.000  1.0
  Sm  Sm1  1  0.500  0.334  0.667  1.0
  Sm  Sm2  1  0.500  0.666  0.333  1.0
  Ga  Ga3  1  0.500  0.315  0.000  1.0
  Ga  Ga4  1  0.500  0.686  0.686  1.0
  Ga  Ga5  1  0.500  0.000  0.314  1.0
  Ga  Ga6  1  0.500  0.685  0.000  1.0
  Ga  Ga7  1  0.500  0.314  0.314  1.0
  Ga  Ga8  1  0.500  1.000  0.686  1.0
  Co  Co9  1  0.000  0.500  0.000  1.0
  Co  Co10  1  0.000  0.500  0.500  1.0
  Co  Co11  1  0.000  1.000  0.500  1.0
  Co  Co12  1  0.000  0.183  0.367  1.0
  Co  Co13  1  0.000  0.183  0.816  1.0
  Co  Co14  1  0.000  0.633  0.816  1.0
  Co  Co15  1  0.000  0.817  0.633  1.0
  Co  Co16  1  0.000  0.367  0.184  1.0
  Co  Co17  1  0.000  0.817  0.184  1.0
[/CIF]
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The compound described by SmCo3Ga2 crystallizes in the orthorhombic Cmmm space group. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a hexagonal planar geometry to two equivalent Co(3), four equivalent Co(4), four equivalent Ga(1), and eight equivalent Ga(2) atoms. In the second Sm site, Sm(2) is bonded in a 18-coordinate geometry to two equivalent Co(1), two equivalent Co(3), four equivalent Co(2), four equivalent Co(4), two equivalent Ga(1), and four equivalent Ga(2) atoms. There are four inequivalent Co sites. In the first Co site, Co(1) is bonded to four equivalent Sm(2), four equivalent Co(4), and four equivalent Ga(1) atoms to form a mixture of face and corner-sharing CoSm4Ga4Co4 cuboctahedra. In the second Co site, Co(2) is bonded to four equivalent Sm(2), two equivalent Co(3), two equivalent Co(4), and four equivalent Ga(2) atoms to form a mixture of face and corner-sharing CoSm4Ga4Co4 cuboctahedra. In the third Co site, Co(3) is bonded in a 9-coordinate geometry to one Sm(1), two equivalent Sm(2), two equivalent Co(2), and four equivalent Ga(2) atoms. In the fourth Co site, Co(4) is bonded in a 9-coordinate geometry to one Sm(1), two equivalent Sm(2), one Co(1), one Co(2), two equivalent Ga(1), and two equivalent Ga(2) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 12-coordinate geometry to two equivalent Sm(1), two equivalent Sm(2), two equivalent Co(1), four equivalent Co(4), and two equivalent Ga(2) atoms. In the second Ga site, Ga(2) is bonded in a 12-coordinate geometry to two equivalent Sm(1), two equivalent Sm(2), two equivalent Co(2), two equivalent Co(3), two equivalent Co(4), one Ga(1), and one Ga(2) atom. is represented by the Crystallographic Information File (CIF) [CIF]
data_SmGa2Co3
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.850
_cell_length_b   9.065
_cell_length_c   9.053
_cell_angle_alpha   120.046
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   273.496
_cell_formula_units_Z   3
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  0.000  1.000  0.000  1.0
  Sm  Sm1  1  0.500  0.334  0.667  1.0
  Sm  Sm2  1  0.500  0.666  0.333  1.0
  Ga  Ga3  1  0.500  0.315  0.000  1.0
  Ga  Ga4  1  0.500  0.686  0.686  1.0
  Ga  Ga5  1  0.500  0.000  0.314  1.0
  Ga  Ga6  1  0.500  0.685  0.000  1.0
  Ga  Ga7  1  0.500  0.314  0.314  1.0
  Ga  Ga8  1  0.500  1.000  0.686  1.0
  Co  Co9  1  0.000  0.500  0.000  1.0
  Co  Co10  1  0.000  0.500  0.500  1.0
  Co  Co11  1  0.000  1.000  0.500  1.0
  Co  Co12  1  0.000  0.183  0.367  1.0
  Co  Co13  1  0.000  0.183  0.816  1.0
  Co  Co14  1  0.000  0.633  0.816  1.0
  Co  Co15  1  0.000  0.817  0.633  1.0
  Co  Co16  1  0.000  0.367  0.184  1.0
  Co  Co17  1  0.000  0.817  0.184  1.0
[/CIF]
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