data_BeMo2Os
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.89
_cell_length_b   4.89
_cell_length_c   4.89
_cell_angle_alpha   136.01
_cell_angle_beta   136.01
_cell_angle_gamma   63.97
_symmetry_Int_Tables_number   1
_chemical_formula_structural   BeMo2Os
_chemical_formula_sum   'Be1 Mo2 Os1'
_cell_volume   55.69
_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
  Mo  Mo1  1  0.83  0.0  0.07  1.0
  Mo  Mo2  1  0.0  0.83  0.07  1.0
  Os  Os3  1  0.0  0.0  0.15  1.0

data_BeMo2Os
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.18
_cell_length_b   5.18
_cell_length_c   4.89
_cell_angle_alpha   90.0
_cell_angle_beta   121.98
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   BeMo2Os
_chemical_formula_sum   'Be2 Mo4 Os2'
_cell_volume   111.37
_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  0.0  1.0
  Mo  Mo1  4  0.08  0.08  0.24  1.0
  Os  Os2  2  0.0  0.0  0.15  1.0

Be Mo Mo Os
Be Mo Mo Os 0 3 o o o 1 3 + o o 2 3 o + o 
BeMo2Os is Indium-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two BeMo2Os clusters. Be(1) is bonded in a single-bond geometry to one Os(1) atom. The Be(1)-Os(1) bond length is 0.73 Å. Mo(1) is bonded in a single-bond geometry to one Os(1) atom. The Mo(1)-Os(1) bond length is 0.62 Å. Os(1) is bonded in a trigonal non-coplanar geometry to one Be(1) and two equivalent Mo(1) atoms.