The structure described by EuPm3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Eu(1) is bonded to twelve Pm(1,1) atoms to form EuPm12 cuboctahedra that share corners with six equivalent Eu(1)Pm12 cuboctahedra; corners with twelve Pm(1,1)Pm8Eu4 cuboctahedra; edges with eighteen Pm(1,1)Pm8Eu4 cuboctahedra; faces with eight equivalent Eu(1)Pm12 cuboctahedra; and faces with twelve Pm(1,1)Pm8Eu4 cuboctahedra. There are two inequivalent Pm sites. In the first Pm site, Pm(1) is bonded to four equivalent Eu(1) and eight equivalent Pm(1) atoms to form PmPm8Eu4 cuboctahedra that share corners with four equivalent Eu(1)Pm12 cuboctahedra; corners with fourteen Pm(1,1)Pm8Eu4 cuboctahedra; edges with six equivalent Eu(1)Pm12 cuboctahedra; edges with twelve equivalent Pm(1)Pm8Eu4 cuboctahedra; faces with four equivalent Eu(1)Pm12 cuboctahedra; and faces with sixteen Pm(1,1)Pm8Eu4 cuboctahedra. In the second Pm site, Pm(1) is bonded to four equivalent Eu(1) and eight Pm(1,1) atoms to form PmPm8Eu4 cuboctahedra that share corners with four equivalent Eu(1)Pm12 cuboctahedra; corners with fourteen Pm(1,1)Pm8Eu4 cuboctahedra; edges with six equivalent Eu(1)Pm12 cuboctahedra; edges with twelve Pm(1,1)Pm8Eu4 cuboctahedra; faces with four equivalent Eu(1)Pm12 cuboctahedra; and faces with sixteen Pm(1,1)Pm8Eu4 cuboctahedra. is represented by the CIF file [CIF]
data_Pm3Eu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.418
_cell_length_b   7.418
_cell_length_c   5.989
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   285.430
_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
  Pm  Pm0  1  0.163  0.327  0.250  1.0
  Pm  Pm1  1  0.673  0.837  0.250  1.0
  Pm  Pm2  1  0.163  0.837  0.250  1.0
  Pm  Pm3  1  0.837  0.673  0.750  1.0
  Pm  Pm4  1  0.327  0.163  0.750  1.0
  Pm  Pm5  1  0.837  0.163  0.750  1.0
  Eu  Eu6  1  0.333  0.667  0.750  1.0
  Eu  Eu7  1  0.667  0.333  0.250  1.0
[/CIF]
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The structure described by EuPm3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. Eu(1) is bonded to twelve Pm(1,1) atoms to form EuPm12 cuboctahedra that share corners with six equivalent Eu(1)Pm12 cuboctahedra; corners with twelve Pm(1,1)Pm8Eu4 cuboctahedra; edges with eighteen Pm(1,1)Pm8Eu4 cuboctahedra; faces with eight equivalent Eu(1)Pm12 cuboctahedra; and faces with twelve Pm(1,1)Pm8Eu4 cuboctahedra. There are two inequivalent Pm sites. In the first Pm site, Pm(1) is bonded to four equivalent Eu(1) and eight equivalent Pm(1) atoms to form PmPm8Eu4 cuboctahedra that share corners with four equivalent Eu(1)Pm12 cuboctahedra; corners with fourteen Pm(1,1)Pm8Eu4 cuboctahedra; edges with six equivalent Eu(1)Pm12 cuboctahedra; edges with twelve equivalent Pm(1)Pm8Eu4 cuboctahedra; faces with four equivalent Eu(1)Pm12 cuboctahedra; and faces with sixteen Pm(1,1)Pm8Eu4 cuboctahedra. In the second Pm site, Pm(1) is bonded to four equivalent Eu(1) and eight Pm(1,1) atoms to form PmPm8Eu4 cuboctahedra that share corners with four equivalent Eu(1)Pm12 cuboctahedra; corners with fourteen Pm(1,1)Pm8Eu4 cuboctahedra; edges with six equivalent Eu(1)Pm12 cuboctahedra; edges with twelve Pm(1,1)Pm8Eu4 cuboctahedra; faces with four equivalent Eu(1)Pm12 cuboctahedra; and faces with sixteen Pm(1,1)Pm8Eu4 cuboctahedra. is represented by the CIF file [CIF]
data_Pm3Eu
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.418
_cell_length_b   7.418
_cell_length_c   5.989
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   120.000
_symmetry_Int_Tables_number   1
_cell_volume   285.430
_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
  Pm  Pm0  1  0.163  0.327  0.250  1.0
  Pm  Pm1  1  0.673  0.837  0.250  1.0
  Pm  Pm2  1  0.163  0.837  0.250  1.0
  Pm  Pm3  1  0.837  0.673  0.750  1.0
  Pm  Pm4  1  0.327  0.163  0.750  1.0
  Pm  Pm5  1  0.837  0.163  0.750  1.0
  Eu  Eu6  1  0.333  0.667  0.750  1.0
  Eu  Eu7  1  0.667  0.333  0.250  1.0
[/CIF]
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