Database of Zeolite Structures
 

Framework Type IHW
Coordination Sequences and Vertex Symbols
T-atom Name
N1 to N10 (or 12)
Vertex Symbola
T1
4
11
24
41
69
95
122
165
221
276
323
374
4·8·5·5·5·5
T2
4
12
23
40
67
96
130
161
208
273
329
373
5·5·5·5·5·8
T3
4
12
22
40
62
96
127
166
213
258
320
381
5·5·5·5·5·6
T4
4
12
24
41
65
94
129
171
216
264
322
382
5·5·5·62·5·8
T5
4
12
25
40
63
94
134
177
208
258
324
393
5·6·52·8·6·62
T6
4
12
22
37
65
95
129
170
212
259
310
397
5·5·5·5·5·62
T7
4
12
24
38
62
97
137
168
211
260
312
389
5·5·5·5·12·*
T8
4
12
22
37
65
99
128
164
210
262
319
383
5·5·5·5·5·62
T9
4
12
24
36
62
95
132
169
204
251
326
399
5·5·5·5·126·*

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 T2-9