Database of Zeolite Structures
 

Framework Type MEL
Coordination Sequences and Vertex Symbols
T-atom Name
N1 to N10 (or 12)
Vertex Symbola
T1
4
12
21
36
63
88
121
153
192
249
0
0
5·5·5·5·5·6
T2
4
11
23
38
61
93
121
153
198
246
0
0
4·5·5·62·5·102
T3
4
12
23
38
62
91
116
155
203
244
0
0
5·5·5·52·5·103
T4
4
12
23
38
59
87
122
158
198
243
0
0
5·62·5·102·52·6
T5
4
11
22
36
57
90
127
157
194
244
0
0
4·5·5·6·5·82
T6
4
11
23
38
57
88
126
158
191
236
0
0
4·52·62·62·10·10
T7
4
12
21
40
63
83
124
155
197
244
0
0
5·5·5·5·52·102

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:
T1,3,4,7 T2,5,6


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