_chemical_formula_structural
'Nd Mn Si'
loop_
_cryst_phase_label
_cryst_phase_stab_range_temp
_symmetry_cell_setting
_symmetry_space_group_name_H-M
_cryst_phase_stab_ref
'Ce Fe Si -type structure' T>80
tetragonal 'P 4/n m m' [1]
. T<80 orthorhombic 'P m m n' [1]
loop_
_cell_length_a
_cell_length_b
_cell_length_c
_cell_angle_alpha
_cell_angle_beta
_cell_angle_gamma
_cell_measurement_temperature
_cell_measurement_references
4.103(2) 4.103(2) 7.284(5) . . . 300 [1]
4.102(3) 4.102(3) 7.288(7) . . . 93 [1]
4.113(2) 4.081(2) 7.285(5) . . . 2 [1]
loop_
_atom_site_label
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom site_measerm_temperature
_atom_site_references
_atom_site_restraints
Nd 2 c 0.25 0.25 0.666(2) 300 [1] .
Mn 2 a 0.75 0.25 0 300 [1] .
Si 2 c 0.25 0.25 0.206(2) 300 [1] .
Nd 2 c 0.25 0.25 0.665(5) 93 [1] .
Mn 2 a 0.75 0.25 0 93 [1] .
;P 4/n m m
1:(3/4,1/4,0) 2:(1/4,3/4,0);
Si 2 c 0.25 0.25 0.214(3) 93 [1]
'1:(1/4,1/4,z) 2:(3/4,3/4,-z)'
Nd 2 a 0.25 0.25 0.662(1) 2 [1] .
Si 2 a 0.25 0.25 0.202(2) 2 [1] .
Mn 2 a 0.25 0.25 0 2 [1]
;P m m n
1:(1/4,1/4,z) 2:(3/4,3/4,1-z);