data_Cr2FeRe
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.08
_cell_length_b   4.08
_cell_length_c   3.0
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Cr2FeRe
_chemical_formula_sum   'Cr2 Fe1 Re1'
_cell_volume   50.03
_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
  Cr  Cr0  1  0.04  0.0  0.5  1.0
  Cr  Cr1  1  0.0  0.04  0.5  1.0
  Fe  Fe2  1  0.0  0.0  0.0  1.0
  Re  Re3  1  0.04  0.04  0.0  1.0

data_Cr2FeRe
_symmetry_space_group_name_H-M   Amm2
_cell_length_a   3.0
_cell_length_b   5.77
_cell_length_c   5.77
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   38
_chemical_formula_structural   Cr2FeRe
_chemical_formula_sum   'Cr4 Fe2 Re2'
_cell_volume   100.06
_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
  Cr  Cr0  4  0.5  0.02  0.02  1.0
  Fe  Fe1  2  0.0  0.0  0.0  1.0
  Re  Re2  2  0.0  0.0  0.04  1.0

Cr Cr Fe Re
(Cr)2FeRe is alpha oxygen-derived structured and crystallizes in the orthorhombic Amm2 space group. The structure is zero-dimensional and consists of two chromium molecules and two iron;rhenium molecules.