data_BeCu2Rh
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   3.41
_cell_length_b   3.41
_cell_length_c   3.98
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeCu2Rh
_chemical_formula_sum   'Be1 Cu2 Rh1'
_cell_volume   46.38
_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  0.0  1.0
  Cu  Cu1  1  0.0  0.71  0.99  1.0
  Cu  Cu2  1  0.71  0.0  0.99  1.0
  Rh  Rh3  1  0.71  0.71  0.0  1.0

data_BeCu2Rh
_symmetry_space_group_name_H-M   Amm2
_cell_length_a   3.98
_cell_length_b   4.82
_cell_length_c   4.82
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   38
_chemical_formula_structural   BeCu2Rh
_chemical_formula_sum   'Be2 Cu4 Rh2'
_cell_volume   92.76
_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, y, z'
  4  'x, -y, z'
  5  'x, y+1/2, z+1/2'
  6  '-x, -y+1/2, z+1/2'
  7  '-x, y+1/2, z+1/2'
  8  'x, -y+1/2, z+1/2'
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  0.0  1.0
  Cu  Cu1  4  0.0  0.15  0.85  1.0
  Rh  Rh2  2  0.0  0.0  0.71  1.0

Be Cu Cu Rh
BeRhCu2 is alpha Po structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two BeRhCu2 clusters. Be(1) is bonded in an L-shaped geometry to two equivalent Cu(1) atoms. Both Be(1)-Cu(1) bond lengths are 1.00 Å. Rh(1) is bonded in an L-shaped geometry to two equivalent Cu(1) atoms. Both Rh(1)-Cu(1) bond lengths are 1.00 Å. Cu(1) is bonded in an L-shaped geometry to one Be(1) and one Rh(1) atom.