data_YBeCr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.31
_cell_length_b   4.13
_cell_length_c   4.39
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YBeCr2
_chemical_formula_sum   'Y1 Be1 Cr2'
_cell_volume   60.07
_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
  Y  Y3  1  0.66  0.07  0.0  1.0
  Be  Be0  1  0.0  0.0  0.0  1.0
  Cr  Cr1  1  0.0  0.07  0.19  1.0
  Cr  Cr2  1  0.66  0.0  0.19  1.0

data_YBeCr2
_symmetry_space_group_name_H-M   P1
_cell_length_a   3.31
_cell_length_b   4.13
_cell_length_c   4.39
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YBeCr2
_chemical_formula_sum   'Y1 Be1 Cr2'
_cell_volume   60.07
_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
  Y  Y0  1  0.66  0.07  0.0  1.0
  Be  Be1  1  0.0  0.0  0.0  1.0
  Cr  Cr2  1  0.0  0.07  0.19  1.0
  Cr  Cr3  1  0.66  0.0  0.19  1.0

Y Be Cr Cr
Y Be Cr Cr 0 3 o o o 1 2 o o o 
BeYCr2 is alpha Po structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one BeYCr2 cluster. Be(1) is bonded in a distorted L-shaped geometry to one Y(1) and one Cr(1) atom. The Be(1)-Y(1) bond length is 1.17 Å. The Be(1)-Cr(1) bond length is 0.90 Å. Y(1) is bonded in a distorted single-bond geometry to one Be(1) and one Cr(2) atom. The Y(1)-Cr(2) bond length is 0.90 Å. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a distorted single-bond geometry to one Be(1) atom. In the second Cr site, Cr(2) is bonded in a single-bond geometry to one Y(1) atom.