The compound described by MnNiSi2 crystallizes in the monoclinic P2_1 space group. Mn(1) is bonded in a 7-coordinate geometry to four equivalent Ni(1), three equivalent Si(1), and four equivalent Si(2) atoms. Ni(1) is bonded in a 13-coordinate geometry to four equivalent Mn(1), two equivalent Ni(1), three equivalent Si(2), and four equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 7-coordinate geometry to three equivalent Mn(1) and four equivalent Ni(1) atoms. In the second Si site, Si(2) is bonded in a 7-coordinate geometry to four equivalent Mn(1) and three equivalent Ni(1) atoms. is represented by the CIF card [CIF]
data_MnSi2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.503
_cell_length_b   4.509
_cell_length_c   4.520
_cell_angle_alpha   89.120
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   91.755
_cell_formula_units_Z   2
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  0.356  0.638  0.609  1.0
  Mn  Mn1  1  0.856  0.362  0.391  1.0
  Si  Si2  1  0.661  0.346  0.905  1.0
  Si  Si3  1  0.161  0.654  0.095  1.0
  Si  Si4  1  0.344  0.152  0.413  1.0
  Si  Si5  1  0.844  0.848  0.587  1.0
  Ni  Ni6  1  0.639  0.858  0.106  1.0
  Ni  Ni7  1  0.139  0.142  0.894  1.0
[/CIF]
.
The compound described by MnNiSi2 crystallizes in the monoclinic P2_1 space group. Mn(1) is bonded in a 7-coordinate geometry to four equivalent Ni(1), three equivalent Si(1), and four equivalent Si(2) atoms. Ni(1) is bonded in a 13-coordinate geometry to four equivalent Mn(1), two equivalent Ni(1), three equivalent Si(2), and four equivalent Si(1) atoms. There are two inequivalent Si sites. In the first Si site, Si(1) is bonded in a 7-coordinate geometry to three equivalent Mn(1) and four equivalent Ni(1) atoms. In the second Si site, Si(2) is bonded in a 7-coordinate geometry to four equivalent Mn(1) and three equivalent Ni(1) atoms. is represented by the CIF card [CIF]
data_MnSi2Ni
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.503
_cell_length_b   4.509
_cell_length_c   4.520
_cell_angle_alpha   89.120
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   91.755
_cell_formula_units_Z   2
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  0.356  0.638  0.609  1.0
  Mn  Mn1  1  0.856  0.362  0.391  1.0
  Si  Si2  1  0.661  0.346  0.905  1.0
  Si  Si3  1  0.161  0.654  0.095  1.0
  Si  Si4  1  0.344  0.152  0.413  1.0
  Si  Si5  1  0.844  0.848  0.587  1.0
  Ni  Ni6  1  0.639  0.858  0.106  1.0
  Ni  Ni7  1  0.139  0.142  0.894  1.0
[/CIF]
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