The crystal structure described by Mn3Ni2Si crystallizes in the cubic Fd-3m space group. Mn(1) is bonded in a 14-coordinate geometry to eight equivalent Mn(1), four equivalent Ni(1), and two equivalent Si(1) atoms. Ni(1) is bonded in a 12-coordinate geometry to six equivalent Mn(1), three equivalent Ni(1), and three equivalent Si(1) atoms. Si(1) is bonded to six equivalent Mn(1) and six equivalent Ni(1) atoms to form face-sharing SiMn6Ni6 cuboctahedra. is represented by the CIF card [CIF]
data_Mn3SiNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.558
_cell_length_b   7.558
_cell_length_c   7.558
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   305.242
_cell_formula_units_Z   4
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
  Mn  Mn0  1  0.941  0.559  0.559  1.0
  Mn  Mn1  1  0.691  0.309  0.309  1.0
  Mn  Mn2  1  0.691  0.691  0.309  1.0
  Mn  Mn3  1  0.691  0.309  0.691  1.0
  Mn  Mn4  1  0.559  0.941  0.559  1.0
  Mn  Mn5  1  0.559  0.941  0.941  1.0
  Mn  Mn6  1  0.309  0.691  0.309  1.0
  Mn  Mn7  1  0.309  0.691  0.691  1.0
  Mn  Mn8  1  0.941  0.941  0.559  1.0
  Mn  Mn9  1  0.941  0.559  0.941  1.0
  Mn  Mn10  1  0.559  0.559  0.941  1.0
  Mn  Mn11  1  0.309  0.309  0.691  1.0
  Si  Si12  1  0.125  0.125  0.125  1.0
  Si  Si13  1  0.125  0.125  0.625  1.0
  Si  Si14  1  0.125  0.625  0.125  1.0
  Si  Si15  1  0.625  0.125  0.125  1.0
  Ni  Ni16  1  0.336  0.992  0.336  1.0
  Ni  Ni17  1  0.336  0.336  0.992  1.0
  Ni  Ni18  1  0.914  0.258  0.914  1.0
  Ni  Ni19  1  0.914  0.914  0.258  1.0
  Ni  Ni20  1  0.992  0.336  0.336  1.0
  Ni  Ni21  1  0.914  0.914  0.914  1.0
  Ni  Ni22  1  0.258  0.914  0.914  1.0
  Ni  Ni23  1  0.336  0.336  0.336  1.0
[/CIF]
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The crystal structure described by Mn3Ni2Si crystallizes in the cubic Fd-3m space group. Mn(1) is bonded in a 14-coordinate geometry to eight equivalent Mn(1), four equivalent Ni(1), and two equivalent Si(1) atoms. Ni(1) is bonded in a 12-coordinate geometry to six equivalent Mn(1), three equivalent Ni(1), and three equivalent Si(1) atoms. Si(1) is bonded to six equivalent Mn(1) and six equivalent Ni(1) atoms to form face-sharing SiMn6Ni6 cuboctahedra. is represented by the CIF card [CIF]
data_Mn3SiNi2
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   7.558
_cell_length_b   7.558
_cell_length_c   7.558
_cell_angle_alpha   60.000
_cell_angle_beta   60.000
_cell_angle_gamma   60.000
_symmetry_Int_Tables_number   1
_cell_volume   305.242
_cell_formula_units_Z   4
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
  Mn  Mn0  1  0.941  0.559  0.559  1.0
  Mn  Mn1  1  0.691  0.309  0.309  1.0
  Mn  Mn2  1  0.691  0.691  0.309  1.0
  Mn  Mn3  1  0.691  0.309  0.691  1.0
  Mn  Mn4  1  0.559  0.941  0.559  1.0
  Mn  Mn5  1  0.559  0.941  0.941  1.0
  Mn  Mn6  1  0.309  0.691  0.309  1.0
  Mn  Mn7  1  0.309  0.691  0.691  1.0
  Mn  Mn8  1  0.941  0.941  0.559  1.0
  Mn  Mn9  1  0.941  0.559  0.941  1.0
  Mn  Mn10  1  0.559  0.559  0.941  1.0
  Mn  Mn11  1  0.309  0.309  0.691  1.0
  Si  Si12  1  0.125  0.125  0.125  1.0
  Si  Si13  1  0.125  0.125  0.625  1.0
  Si  Si14  1  0.125  0.625  0.125  1.0
  Si  Si15  1  0.625  0.125  0.125  1.0
  Ni  Ni16  1  0.336  0.992  0.336  1.0
  Ni  Ni17  1  0.336  0.336  0.992  1.0
  Ni  Ni18  1  0.914  0.258  0.914  1.0
  Ni  Ni19  1  0.914  0.914  0.258  1.0
  Ni  Ni20  1  0.992  0.336  0.336  1.0
  Ni  Ni21  1  0.914  0.914  0.914  1.0
  Ni  Ni22  1  0.258  0.914  0.914  1.0
  Ni  Ni23  1  0.336  0.336  0.336  1.0
[/CIF]
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