The crystal structure described by Mg3Sm4Co2 crystallizes in the monoclinic P2/m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 10-coordinate geometry to one Mg(1), four equivalent Sm(1), four equivalent Sm(2), and one Co(1) atom. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to four equivalent Sm(1), four equivalent Sm(2), and two equivalent Co(1) atoms. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 4-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), and four equivalent Co(1) atoms. In the second Sm site, Sm(2) is bonded in a distorted L-shaped geometry to two equivalent Mg(2), four equivalent Mg(1), and two equivalent Co(1) atoms. Co(1) is bonded in a 9-coordinate geometry to one Mg(1), one Mg(2), two equivalent Sm(2), four equivalent Sm(1), and one Co(1) atom. is represented by the CIF file [CIF]
data_Sm4Mg3Co2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.671
_cell_length_b   7.731
_cell_length_c   8.444
_cell_angle_alpha   109.314
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   226.141
_cell_formula_units_Z   1
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  0.393  0.181  1.0
  Sm  Sm1  1  0.500  0.906  0.278  1.0
  Sm  Sm2  1  0.500  0.607  0.819  1.0
  Sm  Sm3  1  0.500  0.094  0.722  1.0
  Mg  Mg4  1  0.000  0.297  0.503  1.0
  Mg  Mg5  1  0.000  0.000  0.000  1.0
  Mg  Mg6  1  0.000  0.703  0.497  1.0
  Co  Co7  1  0.000  0.353  0.899  1.0
  Co  Co8  1  0.000  0.647  0.101  1.0
[/CIF]
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The crystal structure described by Mg3Sm4Co2 crystallizes in the monoclinic P2/m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 10-coordinate geometry to one Mg(1), four equivalent Sm(1), four equivalent Sm(2), and one Co(1) atom. In the second Mg site, Mg(2) is bonded in a 10-coordinate geometry to four equivalent Sm(1), four equivalent Sm(2), and two equivalent Co(1) atoms. There are two inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 4-coordinate geometry to two equivalent Mg(2), four equivalent Mg(1), and four equivalent Co(1) atoms. In the second Sm site, Sm(2) is bonded in a distorted L-shaped geometry to two equivalent Mg(2), four equivalent Mg(1), and two equivalent Co(1) atoms. Co(1) is bonded in a 9-coordinate geometry to one Mg(1), one Mg(2), two equivalent Sm(2), four equivalent Sm(1), and one Co(1) atom. is represented by the CIF file [CIF]
data_Sm4Mg3Co2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.671
_cell_length_b   7.731
_cell_length_c   8.444
_cell_angle_alpha   109.314
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   226.141
_cell_formula_units_Z   1
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  0.393  0.181  1.0
  Sm  Sm1  1  0.500  0.906  0.278  1.0
  Sm  Sm2  1  0.500  0.607  0.819  1.0
  Sm  Sm3  1  0.500  0.094  0.722  1.0
  Mg  Mg4  1  0.000  0.297  0.503  1.0
  Mg  Mg5  1  0.000  0.000  0.000  1.0
  Mg  Mg6  1  0.000  0.703  0.497  1.0
  Co  Co7  1  0.000  0.353  0.899  1.0
  Co  Co8  1  0.000  0.647  0.101  1.0
[/CIF]
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