data_BeCrRh2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.88
_cell_length_b   2.88
_cell_length_c   5.88
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeCrRh2
_chemical_formula_sum   'Be1 Cr1 Rh2'
_cell_volume   48.63
_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
  Be  Be0  1  0.0  0.0  0.94  1.0
  Cr  Cr1  1  0.44  0.44  0.29  1.0
  Rh  Rh2  1  0.0  0.0  0.65  1.0
  Rh  Rh3  1  0.44  0.44  0.8  1.0

data_BeCrRh2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   4.07
_cell_length_b   4.07
_cell_length_c   5.88
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BeCrRh2
_chemical_formula_sum   'Be2 Cr2 Rh4'
_cell_volume   97.27
_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
  Be  Be0  2  0.0  0.0  0.94  1.0
  Cr  Cr1  2  0.44  0.0  0.29  1.0
  Rh  Rh2  2  0.0  0.0  0.65  1.0
  Rh  Rh3  2  0.44  0.0  0.8  1.0

Be Cr Rh Rh
BeCrRh2 crystallizes in the monoclinic Cm space group. Be(1) is bonded in a 1-coordinate geometry to three equivalent Cr(1), one Rh(1), and four equivalent Rh(2) atoms. There is one shorter (2.75 Å) and two longer (2.93 Å) Be(1)-Cr(1) bond lengths. The Be(1)-Rh(1) bond length is 1.66 Å. There are a spread of Be(1)-Rh(2) bond distances ranging from 1.95-2.41 Å. Cr(1) is bonded in a 13-coordinate geometry to three equivalent Be(1), four equivalent Cr(1), two equivalent Rh(2), and four equivalent Rh(1) atoms. All Cr(1)-Cr(1) bond lengths are 2.88 Å. There is one shorter (2.88 Å) and one longer (3.00 Å) Cr(1)-Rh(2) bond length. There are a spread of Cr(1)-Rh(1) bond distances ranging from 2.77-3.12 Å. There are two inequivalent Rh sites. In the first Rh site, Rh(1) is bonded in a single-bond geometry to one Be(1), four equivalent Cr(1), and four equivalent Rh(2) atoms. There are a spread of Rh(1)-Rh(2) bond distances ranging from 1.99-2.45 Å. In the second Rh site, Rh(2) is bonded in a 10-coordinate geometry to four equivalent Be(1), two equivalent Cr(1), and four equivalent Rh(1) atoms.