# CIF file 

data_findsym-output
_audit_creation_method FINDSYM

_chemical_name_mineral 'Uranium Silicide'
_chemical_formula_sum 'Si U3'
 
loop_
_publ_author_name
 'W. H. Zachariasen'
_journal_name_full
;
Acta Crystallographica
;
_journal_volume 2
_journal_year 1949
_journal_page_first 94
_journal_page_last 99
_publ_Section_title
;
 Crystal chemical studies of the 5f-series of elements. VIII. Crystal structure studies of uranium silicides and of CeSi$_2$, NpSi$_2$, and PuSi$_2$
;

_aflow_proto 'AB3_tI16_140_b_ah' 
_aflow_params 'a,c/a,x3' 
_aflow_params_values '6.017,1.44241316271,0.231' 
_aflow_Strukturbericht 'D0_c' 
_aflow_Pearson 'tI16' 

_symmetry_space_group_name_Hall "-I 4 2c"
_symmetry_space_group_name_H-M "I 4/m c m"
_symmetry_Int_Tables_number 140

_cell_length_a    6.01700
_cell_length_b    6.01700
_cell_length_c    8.67900
_cell_angle_alpha 90.00000
_cell_angle_beta  90.00000
_cell_angle_gamma 90.00000
 
loop_
_space_group_symop_id
_space_group_symop_operation_xyz
1 x,y,z
2 x,-y,-z+1/2
3 -x,y,-z+1/2
4 -x,-y,z
5 -y,-x,-z+1/2
6 -y,x,z
7 y,-x,z
8 y,x,-z+1/2
9 -x,-y,-z
10 -x,y,z+1/2
11 x,-y,z+1/2
12 x,y,-z
13 y,x,z+1/2
14 y,-x,-z
15 -y,x,-z
16 -y,-x,z+1/2
17 x+1/2,y+1/2,z+1/2
18 x+1/2,-y+1/2,-z
19 -x+1/2,y+1/2,-z
20 -x+1/2,-y+1/2,z+1/2
21 -y+1/2,-x+1/2,-z
22 -y+1/2,x+1/2,z+1/2
23 y+1/2,-x+1/2,z+1/2
24 y+1/2,x+1/2,-z
25 -x+1/2,-y+1/2,-z+1/2
26 -x+1/2,y+1/2,z
27 x+1/2,-y+1/2,z
28 x+1/2,y+1/2,-z+1/2
29 y+1/2,x+1/2,z
30 y+1/2,-x+1/2,-z+1/2
31 -y+1/2,x+1/2,-z+1/2
32 -y+1/2,-x+1/2,z
 
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
U1  U    4 a 0.00000 0.00000 0.25000 1.00000
Si1 Si   4 b 0.00000 0.50000 0.25000 1.00000
U2  U    8 h 0.23100 0.73100 0.00000 1.00000
