data_BeCrPt2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.42
_cell_length_b   4.42
_cell_length_c   2.81
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   101.37
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeCrPt2
_chemical_formula_sum   'Be1 Cr1 Pt2'
_cell_volume   53.98
_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
  Be  Be0  1  0.0  0.0  0.0  1.0
  Cr  Cr1  1  0.8  0.0  0.0  1.0
  Pt  Pt2  1  0.4  0.29  0.41  1.0
  Pt  Pt3  1  0.4  0.71  0.41  1.0

data_BeCrPt2
_symmetry_space_group_name_H-M   P1
_cell_length_a   2.81
_cell_length_b   4.42
_cell_length_c   4.42
_cell_angle_alpha   101.37
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeCrPt2
_chemical_formula_sum   'Be1 Cr1 Pt2'
_cell_volume   53.98
_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
  Be  Be0  1  0.0  0.0  0.0  1.0
  Cr  Cr1  1  0.0  0.8  0.0  1.0
  Pt  Pt2  1  0.41  0.4  0.29  1.0
  Pt  Pt3  1  0.41  0.4  0.71  1.0

Be Cr Pt Pt
Be Cr Pt Pt 0 1 - o o 2 3 o o o 
BeCrPt2 crystallizes in the triclinic P1 space group. Be(1) is bonded in a 1-coordinate geometry to one Cr(1), one Pt(2), and two equivalent Pt(1) atoms. The Be(1)-Cr(1) bond length is 0.87 Å. The Be(1)-Pt(2) bond length is 2.64 Å. There is one shorter (2.28 Å) and one longer (2.58 Å) Be(1)-Pt(1) bond length. Cr(1) is bonded in a 1-coordinate geometry to one Be(1), two equivalent Pt(1), and two equivalent Pt(2) atoms. There is one shorter (2.64 Å) and one longer (2.91 Å) Cr(1)-Pt(1) bond length. There is one shorter (2.28 Å) and one longer (2.58 Å) Cr(1)-Pt(2) bond length. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a 8-coordinate geometry to two equivalent Be(1), two equivalent Cr(1), two equivalent Pt(1), and two equivalent Pt(2) atoms. Both Pt(1)-Pt(1) bond lengths are 2.81 Å. There is one shorter (1.87 Å) and one longer (2.55 Å) Pt(1)-Pt(2) bond length. In the second Pt site, Pt(2) is bonded in a 4-coordinate geometry to one Be(1), two equivalent Cr(1), and two equivalent Pt(1) atoms.