data_EuMn
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.19
_cell_length_b   5.19
_cell_length_c   5.19
_cell_angle_alpha   37.5
_cell_angle_beta   37.5
_cell_angle_gamma   37.5
_symmetry_Int_Tables_number   1
_chemical_formula_structural   EuMn
_chemical_formula_sum   'Eu1 Mn1'
_cell_volume   46.44
_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
  Eu  Eu0  1  0.0  0.0  0.23  1.0
  Mn  Mn1  1  0.0  0.0  0.0  1.0

data_EuMn
_symmetry_space_group_name_H-M   Cm
_cell_length_a   5.78
_cell_length_b   3.34
_cell_length_c   5.19
_cell_angle_alpha   90.0
_cell_angle_beta   111.79
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   EuMn
_chemical_formula_sum   'Eu2 Mn2'
_cell_volume   92.87
_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
  Eu  Eu0  2  0.0  0.0  0.77  1.0
  Mn  Mn1  2  0.0  0.0  0.0  1.0

Eu Mn
EuMn is alpha carbon monoxide-like structured and crystallizes in the monoclinic Cm space group. The structure is zero-dimensional and consists of two EuMn clusters. Eu(1) is bonded in a single-bond geometry to one Mn(1) atom. The Eu(1)-Mn(1) bond length is 1.18 Å. Mn(1) is bonded in a single-bond geometry to one Eu(1) atom.