Database of Zeolite Structures
 

Framework Type PTF
Coordination Sequences and Vertex Symbols
T-atom Name
N1 to N10 (or 12)
Vertex Symbola
T1
4
10
18
33
55
71
95
132
173
208
248
287
4·5·4·10·5·6
T2
4
9
17
30
51
79
103
126
161
205
256
305
4·5·4·5·4·8
T3
4
11
20
34
53
75
106
131
160
202
257
307
4·8·5·6·5·6
T4
4
9
18
30
47
78
108
130
160
203
255
296
4·5·4·5·4·82
T5
4
12
21
30
49
75
105
132
167
204
244
299
5·5·5·6·6·8
T6
4
10
21
31
49
76
102
129
167
204
245
294
4·6·4·6·5·5
T7
4
9
16
30
53
76
102
130
162
210
253
286
4·5·4·5·4·10
T8
4
11
21
36
50
69
104
138
170
205
253
295
4·5·5·6·6·10
T9
4
9
17
31
52
73
101
134
167
205
248
295
4·5·4·5·4·8
T10
4
10
23
36
51
71
99
137
173
210
250
295
4·4·5·10·6·6

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:


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