data_Sr2MnCr
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   5.68
_cell_length_b   5.68
_cell_length_c   3.89
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   91.15
_symmetry_Int_Tables_number   1
_chemical_formula_structural   Sr2MnCr
_chemical_formula_sum   'Sr2 Mn1 Cr1'
_cell_volume   125.13
_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  Sr2  1  0.99  0.97  0.94  1.0
  Sr  Sr3  1  0.99  0.03  0.94  1.0
  Mn  Mn1  1  0.97  0.0  0.0  1.0
  Cr  Cr0  1  0.0  0.0  0.0  1.0

data_Sr2MnCr
_symmetry_space_group_name_H-M   Pm
_cell_length_a   3.89
_cell_length_b   5.68
_cell_length_c   5.68
_cell_angle_alpha   90.0
_cell_angle_beta   90.0
_cell_angle_gamma   90.0
_symmetry_Int_Tables_number   6
_chemical_formula_structural   Sr2MnCr
_chemical_formula_sum   'Sr2 Mn1 Cr1'
_cell_volume   125.15
_cell_formula_units_Z   1
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
  2  '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  Sr0  2  0.94  0.03  0.99  1.0
  Mn  Mn1  1  -0.0  0.0  0.97  1.0
  Cr  Cr2  1  0.0  0.0  0.0  1.0

Sr Sr Mn Cr
Sr2CrMn crystallizes in the monoclinic Pm space group. The structure is zero-dimensional and consists of one Sr2CrMn cluster. Sr(1) is bonded in a 3-coordinate geometry to one Sr(1), one Cr(1), and one Mn(1) atom. The Sr(1)-Sr(1) bond length is 0.30 Å. The Sr(1)-Cr(1) bond length is 0.28 Å. The Sr(1)-Mn(1) bond length is 0.28 Å. Cr(1) is bonded in a single-bond geometry to two equivalent Sr(1) and one Mn(1) atom. The Cr(1)-Mn(1) bond length is 0.15 Å. Mn(1) is bonded in a single-bond geometry to two equivalent Sr(1) and one Cr(1) atom.