The structure described by NdFeSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Nd(1) is bonded in a 9-coordinate geometry to four equivalent Fe(1) and five equivalent Si(1) atoms. Fe(1) is bonded in a 8-coordinate geometry to four equivalent Nd(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 8-coordinate geometry to five equivalent Nd(1) and four equivalent Fe(1) atoms. is represented by the CIF file [CIF]
data_NdFeSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.049
_cell_length_b   4.049
_cell_length_c   6.977
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   114.366
_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
  Nd  Nd0  1  0.250  0.250  0.691  1.0
  Nd  Nd1  1  0.750  0.750  0.309  1.0
  Fe  Fe2  1  0.750  0.250  0.000  1.0
  Fe  Fe3  1  0.250  0.750  0.000  1.0
  Si  Si4  1  0.750  0.750  0.842  1.0
  Si  Si5  1  0.250  0.250  0.158  1.0
[/CIF]
.
The structure described by NdFeSi is Matlockite structured and crystallizes in the tetragonal P4/nmm space group. Nd(1) is bonded in a 9-coordinate geometry to four equivalent Fe(1) and five equivalent Si(1) atoms. Fe(1) is bonded in a 8-coordinate geometry to four equivalent Nd(1) and four equivalent Si(1) atoms. Si(1) is bonded in a 8-coordinate geometry to five equivalent Nd(1) and four equivalent Fe(1) atoms. is represented by the CIF file [CIF]
data_NdFeSi
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   4.049
_cell_length_b   4.049
_cell_length_c   6.977
_cell_angle_alpha   90.000
_cell_angle_beta   90.000
_cell_angle_gamma   90.000
_symmetry_Int_Tables_number   1
_cell_volume   114.366
_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
  Nd  Nd0  1  0.250  0.250  0.691  1.0
  Nd  Nd1  1  0.750  0.750  0.309  1.0
  Fe  Fe2  1  0.750  0.250  0.000  1.0
  Fe  Fe3  1  0.250  0.750  0.000  1.0
  Si  Si4  1  0.750  0.750  0.842  1.0
  Si  Si5  1  0.250  0.250  0.158  1.0
[/CIF]
.