The material structure described by Sm4NiMg crystallizes in the cubic F-43m space group. Mg(1) is bonded to three equivalent Mg(1), three equivalent Sm(1), three equivalent Sm(2), and three equivalent Sm(3) atoms to form a mixture of corner and face-sharing MgSm9Mg3 cuboctahedra. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 3-coordinate geometry to three equivalent Mg(1), three equivalent Sm(3), and three equivalent Ni(1) atoms. In the second Sm site, Sm(2) is bonded in a bent 150 degrees geometry to two equivalent Mg(1), four equivalent Sm(3), and two equivalent Ni(1) atoms. In the third Sm site, Sm(3) is bonded in a 14-coordinate geometry to two equivalent Mg(1), two equivalent Sm(1), four equivalent Sm(2), four equivalent Sm(3), and two equivalent Ni(1) atoms. Ni(1) is bonded in a 6-coordinate geometry to three equivalent Sm(1), three equivalent Sm(2), and three equivalent Sm(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm4MgNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.784
_cell_length_b   9.784
_cell_length_c   9.784
_cell_angle_alpha   60.001
_cell_angle_beta   60.001
_cell_angle_gamma   60.002
_symmetry_Int_Tables_number   1
_cell_volume   662.392
_cell_formula_units_Z   4
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  0.596  0.596  0.596  1.0
  Sm  Sm1  1  0.596  0.596  0.213  1.0
  Sm  Sm2  1  0.596  0.213  0.596  1.0
  Sm  Sm3  1  0.213  0.596  0.596  1.0
  Sm  Sm4  1  0.061  0.439  0.439  1.0
  Sm  Sm5  1  0.439  0.061  0.061  1.0
  Sm  Sm6  1  0.439  0.061  0.439  1.0
  Sm  Sm7  1  0.061  0.439  0.061  1.0
  Sm  Sm8  1  0.439  0.439  0.061  1.0
  Sm  Sm9  1  0.061  0.061  0.439  1.0
  Sm  Sm10  1  0.186  0.814  0.814  1.0
  Sm  Sm11  1  0.814  0.186  0.186  1.0
  Sm  Sm12  1  0.814  0.186  0.814  1.0
  Sm  Sm13  1  0.186  0.814  0.186  1.0
  Sm  Sm14  1  0.814  0.814  0.186  1.0
  Sm  Sm15  1  0.186  0.186  0.814  1.0
  Mg  Mg16  1  0.829  0.829  0.829  1.0
  Mg  Mg17  1  0.829  0.829  0.513  1.0
  Mg  Mg18  1  0.829  0.513  0.829  1.0
  Mg  Mg19  1  0.513  0.829  0.829  1.0
  Ni  Ni20  1  0.392  0.392  0.392  1.0
  Ni  Ni21  1  0.392  0.392  0.824  1.0
  Ni  Ni22  1  0.392  0.824  0.392  1.0
  Ni  Ni23  1  0.824  0.392  0.392  1.0
[/CIF]
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The material structure described by Sm4NiMg crystallizes in the cubic F-43m space group. Mg(1) is bonded to three equivalent Mg(1), three equivalent Sm(1), three equivalent Sm(2), and three equivalent Sm(3) atoms to form a mixture of corner and face-sharing MgSm9Mg3 cuboctahedra. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 3-coordinate geometry to three equivalent Mg(1), three equivalent Sm(3), and three equivalent Ni(1) atoms. In the second Sm site, Sm(2) is bonded in a bent 150 degrees geometry to two equivalent Mg(1), four equivalent Sm(3), and two equivalent Ni(1) atoms. In the third Sm site, Sm(3) is bonded in a 14-coordinate geometry to two equivalent Mg(1), two equivalent Sm(1), four equivalent Sm(2), four equivalent Sm(3), and two equivalent Ni(1) atoms. Ni(1) is bonded in a 6-coordinate geometry to three equivalent Sm(1), three equivalent Sm(2), and three equivalent Sm(3) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm4MgNi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.784
_cell_length_b   9.784
_cell_length_c   9.784
_cell_angle_alpha   60.001
_cell_angle_beta   60.001
_cell_angle_gamma   60.002
_symmetry_Int_Tables_number   1
_cell_volume   662.392
_cell_formula_units_Z   4
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  0.596  0.596  0.596  1.0
  Sm  Sm1  1  0.596  0.596  0.213  1.0
  Sm  Sm2  1  0.596  0.213  0.596  1.0
  Sm  Sm3  1  0.213  0.596  0.596  1.0
  Sm  Sm4  1  0.061  0.439  0.439  1.0
  Sm  Sm5  1  0.439  0.061  0.061  1.0
  Sm  Sm6  1  0.439  0.061  0.439  1.0
  Sm  Sm7  1  0.061  0.439  0.061  1.0
  Sm  Sm8  1  0.439  0.439  0.061  1.0
  Sm  Sm9  1  0.061  0.061  0.439  1.0
  Sm  Sm10  1  0.186  0.814  0.814  1.0
  Sm  Sm11  1  0.814  0.186  0.186  1.0
  Sm  Sm12  1  0.814  0.186  0.814  1.0
  Sm  Sm13  1  0.186  0.814  0.186  1.0
  Sm  Sm14  1  0.814  0.814  0.186  1.0
  Sm  Sm15  1  0.186  0.186  0.814  1.0
  Mg  Mg16  1  0.829  0.829  0.829  1.0
  Mg  Mg17  1  0.829  0.829  0.513  1.0
  Mg  Mg18  1  0.829  0.513  0.829  1.0
  Mg  Mg19  1  0.513  0.829  0.829  1.0
  Ni  Ni20  1  0.392  0.392  0.392  1.0
  Ni  Ni21  1  0.392  0.392  0.824  1.0
  Ni  Ni22  1  0.392  0.824  0.392  1.0
  Ni  Ni23  1  0.824  0.392  0.392  1.0
[/CIF]
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