The material structure described by SrMn2Si crystallizes in the cubic F-43m space group. Sr(1) is bonded in a distorted body-centered cubic geometry to four equivalent Mn(1), six equivalent Mn(2), and four equivalent Si(1) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to four equivalent Sr(1) and four equivalent Mn(2) atoms to form distorted edge-sharing MnSr4Mn4 tetrahedra. In the second Mn site, Mn(2) is bonded in a 14-coordinate geometry to six equivalent Sr(1), four equivalent Mn(1), and four equivalent Si(1) atoms. Si(1) is bonded in a body-centered cubic geometry to four equivalent Sr(1) and four equivalent Mn(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrMn2Si
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.857
_cell_length_b   4.857
_cell_length_c   4.857
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   81.020
_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  Sr0  1  0.250  0.250  0.250  1.0
  Mn  Mn1  1  0.000  0.000  0.000  1.0
  Mn  Mn2  1  0.750  0.750  0.750  1.0
  Si  Si3  1  0.500  0.500  0.500  1.0
[/CIF]
.
The material structure described by SrMn2Si crystallizes in the cubic F-43m space group. Sr(1) is bonded in a distorted body-centered cubic geometry to four equivalent Mn(1), six equivalent Mn(2), and four equivalent Si(1) atoms. There are two inequivalent Mn sites. In the first Mn site, Mn(1) is bonded to four equivalent Sr(1) and four equivalent Mn(2) atoms to form distorted edge-sharing MnSr4Mn4 tetrahedra. In the second Mn site, Mn(2) is bonded in a 14-coordinate geometry to six equivalent Sr(1), four equivalent Mn(1), and four equivalent Si(1) atoms. Si(1) is bonded in a body-centered cubic geometry to four equivalent Sr(1) and four equivalent Mn(2) atoms. is represented by the Crystallographic Information File (CIF) [CIF]
data_SrMn2Si
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.857
_cell_length_b   4.857
_cell_length_c   4.857
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   81.020
_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  Sr0  1  0.250  0.250  0.250  1.0
  Mn  Mn1  1  0.000  0.000  0.000  1.0
  Mn  Mn2  1  0.750  0.750  0.750  1.0
  Si  Si3  1  0.500  0.500  0.500  1.0
[/CIF]
.