data_SrHfMn2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.09
_cell_length_b   5.09
_cell_length_c   3.3
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   1
_chemical_formula_structural   SrHfMn2
_chemical_formula_sum   'Sr1 Hf1 Mn2'
_cell_volume   85.36
_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
  Sr  Sr3  1  0.0  0.0  0.0  1.0
  Hf  Hf0  1  0.54  0.54  0.0  1.0
  Mn  Mn1  1  0.54  0.0  0.65  1.0
  Mn  Mn2  1  0.0  0.54  0.65  1.0

data_SrHfMn2
_symmetry_space_group_name_H-M   Cm
_cell_length_a   7.2
_cell_length_b   7.2
_cell_length_c   3.3
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   8
_chemical_formula_structural   SrHfMn2
_chemical_formula_sum   'Sr2 Hf2 Mn4'
_cell_volume   170.73
_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
  Sr  Sr0  2  0.0  0.0  0.0  1.0
  Hf  Hf1  2  0.04  0.5  0.0  1.0
  Mn  Mn2  4  0.27  0.27  0.65  1.0

Sr Hf Mn Mn
SrHfMn2 crystallizes in the monoclinic Cm space group. Sr(1) is bonded in a 2-coordinate geometry to eight equivalent Mn(1) atoms. There are a spread of Sr(1)-Mn(1) bond distances ranging from 2.59-3.50 Å. Hf(1) is bonded in a 2-coordinate geometry to eight equivalent Mn(1) atoms. There are a spread of Hf(1)-Mn(1) bond distances ranging from 2.59-3.50 Å. Mn(1) is bonded in a 8-coordinate geometry to four equivalent Sr(1) and four equivalent Hf(1) atoms.