data_Mn2BeRe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   2.7
_cell_length_b   2.7
_cell_length_c   6.09
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Mn2BeRe
_chemical_formula_sum   'Mn2 Be1 Re1'
_cell_volume   44.32
_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
  Mn  Mn1  1  0.35  0.35  0.04  1.0
  Mn  Mn2  1  0.0  0.0  0.29  1.0
  Be  Be0  1  0.0  0.0  0.75  1.0
  Re  Re3  1  0.35  0.35  0.16  1.0

data_Mn2BeRe
_symmetry_space_group_name_H-M   Cm
_cell_length_a   3.81
_cell_length_b   3.81
_cell_length_c   6.09
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   Mn2BeRe
_chemical_formula_sum   'Mn4 Be2 Re2'
_cell_volume   88.64
_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
  Mn  Mn0  2  0.0  0.0  0.29  1.0
  Mn  Mn1  2  0.35  0.0  0.04  1.0
  Be  Be2  2  0.0  0.0  0.75  1.0
  Re  Re3  2  0.35  0.0  0.16  1.0

Mn Mn Be Re
Mn Mn Be Re 0 3 o o o 0 2 + + - 0 2 + o - 0 2 o + - 0 2 o o - 1 3 o o o 1 2 o o o 2 2 + o o 2 2 o + o 2 3 o o + 
BeReMn2 crystallizes in the monoclinic Cm space group. Be(1) is bonded in a 4-coordinate geometry to one Mn(2) and three equivalent Mn(1) atoms. The Be(1)-Mn(2) bond length is 2.79 Å. There is one shorter (2.20 Å) and two longer (2.65 Å) Be(1)-Mn(1) bond lengths. Re(1) is bonded in a distorted single-bond geometry to one Mn(1) and one Mn(2) atom. The Re(1)-Mn(1) bond length is 0.76 Å. The Re(1)-Mn(2) bond length is 1.55 Å. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded in a single-bond geometry to three equivalent Be(1) and one Re(1) atom. In the second Mn site, Mn(2) is bonded in a 1-coordinate geometry to one Be(1) and one Re(1) atom.