
#######################################################################
#
#                 Cambridge Crystallographic Data Centre
#                                CCDC 
#
#######################################################################
#
# If this CIF has been generated from an entry in the Cambridge 
# Structural Database, then it will include bibliographic, chemical, 
# crystal, experimental, refinement or atomic coordinate data resulting 
# from the CCDC's data processing and validation procedures.
#
#######################################################################

data_none in Fm-3m
_symmetry_cell_setting           cubic
_symmetry_space_group_name_H-M   'F m -3 m'
_symmetry_Int_Tables_number      225
_space_group_name_Hall           '-F 4 2 3'
loop_
_symmetry_equiv_pos_site_id
_symmetry_equiv_pos_as_xyz
1 x,y,z
2 -x,-y,z
3 -x,y,-z
4 x,-y,-z
5 z,x,y
6 z,-x,-y
7 -z,-x,y
8 -z,x,-y
9 y,z,x
10 -y,z,-x
11 y,-z,-x
12 -y,-z,x
13 y,x,-z
14 -y,-x,-z
15 y,-x,z
16 -y,x,z
17 x,z,-y
18 -x,z,y
19 -x,-z,-y
20 x,-z,y
21 z,y,-x
22 z,-y,x
23 -z,y,x
24 -z,-y,-x
25 x,1/2+y,1/2+z
26 -x,1/2-y,1/2+z
27 -x,1/2+y,1/2-z
28 x,1/2-y,1/2-z
29 z,1/2+x,1/2+y
30 z,1/2-x,1/2-y
31 -z,1/2-x,1/2+y
32 -z,1/2+x,1/2-y
33 y,1/2+z,1/2+x
34 -y,1/2+z,1/2-x
35 y,1/2-z,1/2-x
36 -y,1/2-z,1/2+x
37 y,1/2+x,1/2-z
38 -y,1/2-x,1/2-z
39 y,1/2-x,1/2+z
40 -y,1/2+x,1/2+z
41 x,1/2+z,1/2-y
42 -x,1/2+z,1/2+y
43 -x,1/2-z,1/2-y
44 x,1/2-z,1/2+y
45 z,1/2+y,1/2-x
46 z,1/2-y,1/2+x
47 -z,1/2+y,1/2+x
48 -z,1/2-y,1/2-x
49 1/2+x,y,1/2+z
50 1/2-x,-y,1/2+z
51 1/2-x,y,1/2-z
52 1/2+x,-y,1/2-z
53 1/2+z,x,1/2+y
54 1/2+z,-x,1/2-y
55 1/2-z,-x,1/2+y
56 1/2-z,x,1/2-y
57 1/2+y,z,1/2+x
58 1/2-y,z,1/2-x
59 1/2+y,-z,1/2-x
60 1/2-y,-z,1/2+x
61 1/2+y,x,1/2-z
62 1/2-y,-x,1/2-z
63 1/2+y,-x,1/2+z
64 1/2-y,x,1/2+z
65 1/2+x,z,1/2-y
66 1/2-x,z,1/2+y
67 1/2-x,-z,1/2-y
68 1/2+x,-z,1/2+y
69 1/2+z,y,1/2-x
70 1/2+z,-y,1/2+x
71 1/2-z,y,1/2+x
72 1/2-z,-y,1/2-x
73 1/2+x,1/2+y,z
74 1/2-x,1/2-y,z
75 1/2-x,1/2+y,-z
76 1/2+x,1/2-y,-z
77 1/2+z,1/2+x,y
78 1/2+z,1/2-x,-y
79 1/2-z,1/2-x,y
80 1/2-z,1/2+x,-y
81 1/2+y,1/2+z,x
82 1/2-y,1/2+z,-x
83 1/2+y,1/2-z,-x
84 1/2-y,1/2-z,x
85 1/2+y,1/2+x,-z
86 1/2-y,1/2-x,-z
87 1/2+y,1/2-x,z
88 1/2-y,1/2+x,z
89 1/2+x,1/2+z,-y
90 1/2-x,1/2+z,y
91 1/2-x,1/2-z,-y
92 1/2+x,1/2-z,y
93 1/2+z,1/2+y,-x
94 1/2+z,1/2-y,x
95 1/2-z,1/2+y,x
96 1/2-z,1/2-y,-x
97 -x,-y,-z
98 x,y,-z
99 x,-y,z
100 -x,y,z
101 -z,-x,-y
102 -z,x,y
103 z,x,-y
104 z,-x,y
105 -y,-z,-x
106 y,-z,x
107 -y,z,x
108 y,z,-x
109 -y,-x,z
110 y,x,z
111 -y,x,-z
112 y,-x,-z
113 -x,-z,y
114 x,-z,-y
115 x,z,y
116 -x,z,-y
117 -z,-y,x
118 -z,y,-x
119 z,-y,-x
120 z,y,x
121 -x,1/2-y,1/2-z
122 x,1/2+y,1/2-z
123 x,1/2-y,1/2+z
124 -x,1/2+y,1/2+z
125 -z,1/2-x,1/2-y
126 -z,1/2+x,1/2+y
127 z,1/2+x,1/2-y
128 z,1/2-x,1/2+y
129 -y,1/2-z,1/2-x
130 y,1/2-z,1/2+x
131 -y,1/2+z,1/2+x
132 y,1/2+z,1/2-x
133 -y,1/2-x,1/2+z
134 y,1/2+x,1/2+z
135 -y,1/2+x,1/2-z
136 y,1/2-x,1/2-z
137 -x,1/2-z,1/2+y
138 x,1/2-z,1/2-y
139 x,1/2+z,1/2+y
140 -x,1/2+z,1/2-y
141 -z,1/2-y,1/2+x
142 -z,1/2+y,1/2-x
143 z,1/2-y,1/2-x
144 z,1/2+y,1/2+x
145 1/2-x,-y,1/2-z
146 1/2+x,y,1/2-z
147 1/2+x,-y,1/2+z
148 1/2-x,y,1/2+z
149 1/2-z,-x,1/2-y
150 1/2-z,x,1/2+y
151 1/2+z,x,1/2-y
152 1/2+z,-x,1/2+y
153 1/2-y,-z,1/2-x
154 1/2+y,-z,1/2+x
155 1/2-y,z,1/2+x
156 1/2+y,z,1/2-x
157 1/2-y,-x,1/2+z
158 1/2+y,x,1/2+z
159 1/2-y,x,1/2-z
160 1/2+y,-x,1/2-z
161 1/2-x,-z,1/2+y
162 1/2+x,-z,1/2-y
163 1/2+x,z,1/2+y
164 1/2-x,z,1/2-y
165 1/2-z,-y,1/2+x
166 1/2-z,y,1/2-x
167 1/2+z,-y,1/2-x
168 1/2+z,y,1/2+x
169 1/2-x,1/2-y,-z
170 1/2+x,1/2+y,-z
171 1/2+x,1/2-y,z
172 1/2-x,1/2+y,z
173 1/2-z,1/2-x,-y
174 1/2-z,1/2+x,y
175 1/2+z,1/2+x,-y
176 1/2+z,1/2-x,y
177 1/2-y,1/2-z,-x
178 1/2+y,1/2-z,x
179 1/2-y,1/2+z,x
180 1/2+y,1/2+z,-x
181 1/2-y,1/2-x,z
182 1/2+y,1/2+x,z
183 1/2-y,1/2+x,-z
184 1/2+y,1/2-x,-z
185 1/2-x,1/2-z,y
186 1/2+x,1/2-z,-y
187 1/2+x,1/2+z,y
188 1/2-x,1/2+z,-y
189 1/2-z,1/2-y,x
190 1/2-z,1/2+y,-x
191 1/2+z,1/2-y,-x
192 1/2+z,1/2+y,x
_cell_length_a                   3.9500(6)
_cell_length_b                   3.9500(6)
_cell_length_c                   3.9500(6)
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_volume                     61.6299
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Na1 Na 0.25 0.25 0.25
He1 He 0 0 0
Na1 Na -0.25 -0.25 0.25
Na1 Na -0.25 0.25 -0.25
Na1 Na 0.25 -0.25 -0.25
Na1 Na 0.25 0.25 -0.25
Na1 Na 0.25 0.25 0.75
Na1 Na -0.25 -0.25 -0.25
Na1 Na -0.25 -0.25 0.75
Na1 Na -0.75 -0.25 0.25
Na1 Na 0.25 -0.25 0.25
Na1 Na 0.25 0.75 0.25
Na1 Na -0.25 -0.75 0.25
Na1 Na -0.25 0.25 0.25
Na1 Na 0.75 0.25 0.25
He1 He 0 -0.5 0.5
He1 He 0 0.5 0.5
He1 He -0.5 0 0.5
He1 He 0.5 0 0.5
He1 He -0.5 -0.5 0
He1 He 0.5 0.5 0

#END
