data_1528586
_publ_section_title
;
 The Crystal Structure of Nb5 Sn2 Si
;
_journal_name_full
;
Bulletin de l'Academie Polonaise des Sciences, Serie des Sciences Chimiques
;
_journal_page_first              59
_journal_page_last               64
_journal_volume                  18
_journal_year                    1970
_chemical_formula_sum            'Nb5 Si Sn2'
_chemical_name_systematic        'Nb5 Sn2 Si'
_space_group_IT_number           140
_symmetry_space_group_name_Hall  '-I 4 2c'
_symmetry_space_group_name_H-M   'I 4/m c m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.541
_cell_length_b                   10.541
_cell_length_c                   5.138
_cell_volume                     570.897
_citation_journal_id_ASTM        BAPCAQ
_cod_data_source_file            Horyn_BAPCAQ_1970_112.cif
_cod_data_source_block           Nb5Si1Sn2
_cod_chemical_formula_sum_orig   'Nb5 Si1 Sn2'
_cod_database_code               1528586
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-y,x,z
-x,-y,z
y,-x,z
x,-y,-z+1/2
y,x,-z+1/2
-x,y,-z+1/2
-y,-x,-z+1/2
-x,-y,-z
y,-x,-z
x,y,-z
-y,x,-z
-x,y,z-1/2
-y,-x,z-1/2
x,-y,z-1/2
y,x,z-1/2
x+1/2,y+1/2,z+1/2
-y+1/2,x+1/2,z+1/2
-x+1/2,-y+1/2,z+1/2
y+1/2,-x+1/2,z+1/2
x+1/2,-y+1/2,-z+1
y+1/2,x+1/2,-z+1
-x+1/2,y+1/2,-z+1
-y+1/2,-x+1/2,-z+1
-x+1/2,-y+1/2,-z+1/2
y+1/2,-x+1/2,-z+1/2
x+1/2,y+1/2,-z+1/2
-y+1/2,x+1/2,-z+1/2
-x+1/2,y+1/2,z
-y+1/2,-x+1/2,z
x+1/2,-y+1/2,z
y+1/2,x+1/2,z
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Sn1 Sn 0.1683 0.6683 0 1 0.0
Nb1 Nb 0.07038 0.21346 0 1 0.0
Nb2 Nb 0 0.5 0.25 1 0.0
Si1 Si 0 0 0.25 1 0.0
