data_YBe2Cr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.87
_cell_length_b   2.87
_cell_length_c   6.87
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   YBe2Cr
_chemical_formula_sum   'Y1 Be2 Cr1'
_cell_volume   56.63
_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  0.44  0.44  0.16  1.0
  Be  Be0  1  0.0  0.0  0.57  1.0
  Be  Be1  1  0.44  0.44  0.62  1.0
  Cr  Cr2  1  0.0  0.0  0.97  1.0

data_YBe2Cr
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.06
_cell_length_b   4.06
_cell_length_c   6.87
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   YBe2Cr
_chemical_formula_sum   'Y2 Be4 Cr2'
_cell_volume   113.27
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  'x, -y, z'
  3  'x+1/2, y+1/2, z'
  4  'x+1/2, -y+1/2, 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  2  0.44  0.0  0.16  1.0
  Be  Be1  2  0.0  0.0  0.57  1.0
  Be  Be2  2  0.44  0.0  0.62  1.0
  Cr  Cr3  2  0.0  0.0  0.97  1.0

Y Be Be Cr
Be2YCr crystallizes in the monoclinic Cm space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded in a 5-coordinate geometry to four equivalent Be(2) and one Cr(1) atom. There are a spread of Be(1)-Be(2) bond distances ranging from 1.79-2.31 Å. The Be(1)-Cr(1) bond length is 2.71 Å. In the second Be site, Be(2) is bonded in a 5-coordinate geometry to four equivalent Be(1) and one Y(1) atom. The Be(2)-Y(1) bond length is 3.16 Å. Y(1) is bonded in a 4-coordinate geometry to one Be(2) and four equivalent Cr(1) atoms. There are a spread of Y(1)-Cr(1) bond distances ranging from 2.19-2.63 Å. Cr(1) is bonded in a 5-coordinate geometry to one Be(1) and four equivalent Y(1) atoms.