Database of Zeolite Structures
 

Framework Type HEU
Coordination Sequences and Vertex Symbols
T-atom Name
N1 to N10 (or 12)
Vertex Symbola
T1
4
10
20
34
62
85
104
148
201
241
0
0
4·5·4·5·5·8
T2
4
11
23
39
55
82
127
158
178
221
0
0
4·8·5·8·5·8
T3
4
10
19
37
58
84
109
149
201
236
0
0
4·5·4·8·5·5
T4
4
11
21
35
61
89
111
146
194
243
0
0
4·5·5·5·5·8
T5
4
12
18
34
62
88
110
132
196
254
0
0
5·5·52·52·10·10

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:
T1,3 T2,4 T5