Database of Zeolite Structures
 

Framework Type ETL
Coordination Sequences and Vertex Symbols
T-atom Name
N1 to N10 (or 12)
Vertex Symbola
T1
4
10
23
41
62
93
131
163
203
267
333
381
4·5·4·6·8·82
T2
4
12
21
39
69
95
124
170
215
258
317
388
5·5·5·52·5·8
T3
4
11
20
36
66
98
125
164
206
257
320
389
4·52·5·5·8·8
T4
4
12
24
41
64
94
123
169
222
259
317
373
5·5·5·5·5·82
T5
4
12
28
44
61
94
137
171
218
271
316
379
5·82·5·82·52·82
T6
4
12
23
39
66
94
123
166
221
264
308
376
5·82·5·82·52·6

aSize and number of smallest 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:
T2,4-6 T1,3