data_SrBeCr2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.12
_cell_length_b   3.12
_cell_length_c   7.26
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrBeCr2
_chemical_formula_sum   'Sr1 Be1 Cr2'
_cell_volume   70.48
_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
  Sr  Sr3  1  0.56  0.56  0.74  1.0
  Be  Be0  1  0.0  0.0  0.06  1.0
  Cr  Cr1  1  0.56  0.56  0.21  1.0
  Cr  Cr2  1  0.0  0.0  0.14  1.0

data_SrBeCr2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.41
_cell_length_b   4.41
_cell_length_c   7.26
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrBeCr2
_chemical_formula_sum   'Sr2 Be2 Cr4'
_cell_volume   140.95
_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
  Sr  Sr0  2  0.06  0.5  0.74  1.0
  Be  Be1  2  0.0  0.0  0.06  1.0
  Cr  Cr2  2  0.0  0.0  0.14  1.0
  Cr  Cr3  2  0.06  0.5  0.21  1.0

Sr Be Cr Cr
SrBeCr2 crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 10-coordinate geometry to four equivalent Sr(1), four equivalent Be(1), and two equivalent Cr(1) atoms. All Sr(1)-Sr(1) bond lengths are 3.12 Å. There are a spread of Sr(1)-Be(1) bond distances ranging from 3.01-3.36 Å. There is one shorter (3.40 Å) and one longer (3.86 Å) Sr(1)-Cr(1) bond length. Be(1) is bonded in a single-bond geometry to four equivalent Sr(1), one Cr(2), and four equivalent Cr(1) atoms. The Be(1)-Cr(2) bond length is 0.59 Å. There are a spread of Be(1)-Cr(1) bond distances ranging from 2.24-2.70 Å. There are two inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 10-coordinate geometry to two equivalent Sr(1), four equivalent Be(1), and four equivalent Cr(2) atoms. There are a spread of Cr(1)-Cr(2) bond distances ranging from 2.02-2.51 Å. In the second Cr site, Cr(2) is bonded in a single-bond geometry to one Be(1) and four equivalent Cr(1) atoms.