The material structure described by Eu3Pt7B2 crystallizes in the trigonal R-3m space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 12-coordinate geometry to one Eu(2), three equivalent Pt(2), and nine equivalent Pt(1) atoms. In the second Eu site, Eu(2) is bonded in a 20-coordinate geometry to two equivalent Eu(1), twelve equivalent Pt(1), and six equivalent B(1) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted L-shaped geometry to two equivalent Eu(2), three equivalent Eu(1), one Pt(2), and two equivalent B(1) atoms. In the second Pt site, Pt(2) is bonded to six equivalent Eu(1) and six equivalent Pt(1) atoms to form edge-sharing PtEu6Pt6 cuboctahedra. B(1) is bonded in a 6-coordinate geometry to three equivalent Eu(2) and six equivalent Pt(1) atoms. is represented by the CIF file [CIF]
data_Eu3B2Pt7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.307
_cell_length_b   8.307
_cell_length_c   8.307
_cell_angle_alpha   39.086
_cell_angle_beta   39.086
_cell_angle_gamma   39.086
_symmetry_Int_Tables_number   1
_cell_volume   204.971
_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
  Eu  Eu0  1  0.856  0.856  0.856  1.0
  Eu  Eu1  1  0.144  0.144  0.144  1.0
  Eu  Eu2  1  0.000  0.000  0.000  1.0
  B  B3  1  0.669  0.669  0.669  1.0
  B  B4  1  0.331  0.331  0.331  1.0
  Pt  Pt5  1  0.436  0.932  0.436  1.0
  Pt  Pt6  1  0.436  0.436  0.932  1.0
  Pt  Pt7  1  0.932  0.436  0.436  1.0
  Pt  Pt8  1  0.564  0.068  0.564  1.0
  Pt  Pt9  1  0.564  0.564  0.068  1.0
  Pt  Pt10  1  0.068  0.564  0.564  1.0
  Pt  Pt11  1  0.500  0.500  0.500  1.0
[/CIF]
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The material structure described by Eu3Pt7B2 crystallizes in the trigonal R-3m space group. There are two inequivalent Eu sites. In the first Eu site, Eu(1) is bonded in a 12-coordinate geometry to one Eu(2), three equivalent Pt(2), and nine equivalent Pt(1) atoms. In the second Eu site, Eu(2) is bonded in a 20-coordinate geometry to two equivalent Eu(1), twelve equivalent Pt(1), and six equivalent B(1) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a distorted L-shaped geometry to two equivalent Eu(2), three equivalent Eu(1), one Pt(2), and two equivalent B(1) atoms. In the second Pt site, Pt(2) is bonded to six equivalent Eu(1) and six equivalent Pt(1) atoms to form edge-sharing PtEu6Pt6 cuboctahedra. B(1) is bonded in a 6-coordinate geometry to three equivalent Eu(2) and six equivalent Pt(1) atoms. is represented by the CIF file [CIF]
data_Eu3B2Pt7
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   8.307
_cell_length_b   8.307
_cell_length_c   8.307
_cell_angle_alpha   39.086
_cell_angle_beta   39.086
_cell_angle_gamma   39.086
_symmetry_Int_Tables_number   1
_cell_volume   204.971
_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
  Eu  Eu0  1  0.856  0.856  0.856  1.0
  Eu  Eu1  1  0.144  0.144  0.144  1.0
  Eu  Eu2  1  0.000  0.000  0.000  1.0
  B  B3  1  0.669  0.669  0.669  1.0
  B  B4  1  0.331  0.331  0.331  1.0
  Pt  Pt5  1  0.436  0.932  0.436  1.0
  Pt  Pt6  1  0.436  0.436  0.932  1.0
  Pt  Pt7  1  0.932  0.436  0.436  1.0
  Pt  Pt8  1  0.564  0.068  0.564  1.0
  Pt  Pt9  1  0.564  0.564  0.068  1.0
  Pt  Pt10  1  0.068  0.564  0.564  1.0
  Pt  Pt11  1  0.500  0.500  0.500  1.0
[/CIF]
.