data_SrBe2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.97
_cell_length_b   5.97
_cell_length_c   4.1
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   46.19
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrBe2
_chemical_formula_sum   'Sr2 Be4'
_cell_volume   105.52
_cell_formula_units_Z   2
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
  Sr  Sr4  1  0.5  0.23  0.02  1.0
  Sr  Sr5  1  0.5  0.77  0.07  1.0
  Be  Be0  1  0.02  0.4  0.02  1.0
  Be  Be1  1  0.97  0.6  0.07  1.0
  Be  Be2  1  0.97  0.4  0.02  1.0
  Be  Be3  1  0.02  0.6  0.07  1.0

data_SrBe2
_symmetry_space_group_name_H-M   P-1
_cell_length_a   4.1
_cell_length_b   4.69
_cell_length_c   5.97
_cell_angle_alpha   113.1
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   2
_chemical_formula_structural   SrBe2
_chemical_formula_sum   'Sr2 Be4'
_cell_volume   105.52
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '-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
  Sr  Sr0  2  0.48  0.23  0.73  1.0
  Be  Be1  2  0.48  0.4  0.38  1.0
  Be  Be2  2  0.48  0.4  0.42  1.0

Sr Sr Be Be Be Be
Sr Sr Be Be Be Be 0 5 o o o 0 2 o o o 0 4 - o o 0 3 - o o 1 2 + o o 1 4 o o o 1 5 + o o 1 3 o o o 2 4 - o o 3 5 + o o 
SrBe2 crystallizes in the triclinic P-1 space group. The structure is zero-dimensional and consists of one SrBe2 cluster. Sr(1) is bonded in a 1-coordinate geometry to one Be(2) atom. The Sr(1)-Be(2) bond length is 2.09 Å. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded in a 2-coordinate geometry to one Be(1) and one Be(2) atom. The Be(1)-Be(1) bond length is 1.02 Å. The Be(1)-Be(2) bond length is 0.25 Å. In the second Be site, Be(2) is bonded in a distorted single-bond geometry to one Sr(1) and one Be(1) atom.