Database of Zeolite Structures
 

Framework Type POS
Coordination Sequences and Vertex Symbols
T-atom Name
N1 to N10 (or 12)
Vertex Symbola
T1
4
12
19
31
52
74
103
135
169
211
253
305
5·6·5·62·5·11
T2
4
9
17
33
53
74
96
133
177
211
248
307
4·5·4·5·4·112
T3
4
9
19
34
53
73
100
135
176
212
248
299
4·6·4·62·4·112
T4
4
11
22
31
45
73
109
140
167
198
251
316
4·52·6·62·6·62
T5
4
11
20
28
44
76
110
135
156
195
257
326
4·5·5·62·5·62

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 T2,3 T4,5