data_Be4Pt
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.32
_cell_length_b   6.32
_cell_length_c   6.32
_cell_angle_alpha   109.47
_cell_angle_beta   109.47
_cell_angle_gamma   109.47
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Be4Pt
_chemical_formula_sum   'Be16 Pt4'
_cell_volume   194.2
_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
  Be  Be0  1  0.84  0.84  0.84  1.0
  Be  Be1  1  0.19  0.81  0.81  1.0
  Be  Be2  1  0.81  0.19  0.81  1.0
  Be  Be3  1  0.81  0.81  0.19  1.0
  Be  Be4  1  0.0  0.0  0.7  1.0
  Be  Be5  1  0.0  0.0  0.59  1.0
  Be  Be6  1  0.0  0.7  0.0  1.0
  Be  Be7  1  0.0  0.59  0.0  1.0
  Be  Be8  1  0.7  0.0  0.0  1.0
  Be  Be9  1  0.59  0.0  0.0  1.0
  Be  Be10  1  0.65  0.0  0.82  1.0
  Be  Be11  1  0.0  0.65  0.82  1.0
  Be  Be12  1  0.0  0.82  0.65  1.0
  Be  Be13  1  0.65  0.82  0.0  1.0
  Be  Be14  1  0.82  0.65  0.0  1.0
  Be  Be15  1  0.82  0.0  0.65  1.0
  Pt  Pt16  1  0.47  0.47  0.47  1.0
  Pt  Pt17  1  0.82  0.18  0.18  1.0
  Pt  Pt18  1  0.18  0.82  0.18  1.0
  Pt  Pt19  1  0.18  0.18  0.82  1.0

data_Be4Pt
_symmetry_space_group_name_H-M   R3m
_cell_length_a   10.32
_cell_length_b   10.32
_cell_length_c   6.32
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   120.0
_symmetry_Int_Tables_number   160
_chemical_formula_structural   Be4Pt
_chemical_formula_sum   'Be48 Pt12'
_cell_volume   582.59
_cell_formula_units_Z   12
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-y, x-y, z'
  3  '-x+y, -x, z'
  4  '-y, -x, z'
  5  '-x+y, y, z'
  6  'x, x-y, z'
  7  'x+2/3, y+1/3, z+1/3'
  8  '-y+2/3, x-y+1/3, z+1/3'
  9  '-x+y+2/3, -x+1/3, z+1/3'
  10  '-y+2/3, -x+1/3, z+1/3'
  11  '-x+y+2/3, y+1/3, z+1/3'
  12  'x+2/3, x-y+1/3, z+1/3'
  13  'x+1/3, y+2/3, z+2/3'
  14  '-y+1/3, x-y+2/3, z+2/3'
  15  '-x+y+1/3, -x+2/3, z+2/3'
  16  '-y+1/3, -x+2/3, z+2/3'
  17  '-x+y+1/3, y+2/3, z+2/3'
  18  'x+1/3, x-y+2/3, z+2/3'
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
  Be  Be0  18  0.0  0.18  0.82  1.0
  Be  Be1  9  0.06  0.53  0.53  1.0
  Be  Be2  9  0.1  0.2  0.9  1.0
  Be  Be3  9  0.21  0.41  0.6  1.0
  Be  Be4  3  0.0  0.0  0.84  1.0
  Pt  Pt5  9  0.1  0.55  0.73  1.0
  Pt  Pt6  3  0.0  0.0  0.47  1.0

Be Be Be Be Be Be Be Be Be Be Be Be Be Be Be Be Pt Pt Pt Pt
Be4Pt crystallizes in the trigonal R3m space group. There are five inequivalent Be sites. In the first Be site, Be(1) is bonded in a 10-coordinate geometry to three equivalent Be(3), six equivalent Be(5), and one Pt(1) atom. All Be(1)-Be(3) bond lengths are 1.80 Å. All Be(1)-Be(5) bond lengths are 1.82 Å. The Be(1)-Pt(1) bond length is 2.33 Å. In the second Be site, Be(2) is bonded in a 5-coordinate geometry to one Be(4), two equivalent Be(5), and two equivalent Pt(2) atoms. The Be(2)-Be(4) bond length is 2.07 Å. Both Be(2)-Be(5) bond lengths are 1.35 Å. Both Be(2)-Pt(2) bond lengths are 2.34 Å. In the third Be site, Be(3) is bonded to one Be(1), one Be(4), two equivalent Be(5), and one Pt(2) atom to form distorted corner-sharing BeBe4Pt trigonal pyramids. The Be(3)-Be(4) bond length is 0.72 Å. Both Be(3)-Be(5) bond lengths are 1.05 Å. The Be(3)-Pt(2) bond length is 1.06 Å. In the fourth Be site, Be(4) is bonded in a single-bond geometry to one Be(2) and one Be(3) atom. In the fifth Be site, Be(5) is bonded in a 1-coordinate geometry to one Be(1), one Be(2), and one Be(3) atom. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a single-bond geometry to one Be(1) atom. In the second Pt site, Pt(2) is bonded in a single-bond geometry to one Be(3) and two equivalent Be(2) atoms.