Database of Zeolite Structures
 

Framework Type VNI
Coordination Sequences and Vertex Symbols
T-atom Name
N1 to N10 (or 12)
Vertex Symbola
T1
4
11
23
39
63
93
126
170
210
255
0
0
4·8·5·82·52·82
T2
4
11
19
39
59
89
130
166
207
274
0
0
4·52·5·8·5·8
T3
4
9
20
37
61
92
117
152
201
246
0
0
3·4·8·82·8·82
T4
4
9
20
37
62
87
119
158
195
248
0
0
3·4·82·83·82·83
T5
4
9
21
41
59
85
133
155
195
261
0
0
3·4·8·83·8·83
T6
4
10
18
39
65
83
119
169
218
236
0
0
3·83·5·52·5·52
T7
4
10
18
36
64
82
118
176
202
264
0
0
3·82·5·5·5·5

aSize and number of shortest ring on each angle of the T-atom (M. O'Keeffe and S.T. Hyde, Zeolites 19, 370 (1997))
* = no closed ring at this angle
 
Loop configuration of T-atoms:
T1,2 T3-5 T6,7