Database of Zeolite Structures
 

Framework Type BEC
Coordination Sequences and Vertex Symbols
T-atom Name
N1 to N10 (or 12)
Vertex Symbola
T1
4
9
18
32
50
71
96
129
167
199
0
0
4·5·4·6·4·126
T2
4
12
17
30
48
71
98
126
156
198
0
0
5·5·52·125· 6·6
T3
4
11
20
28
41
70
103
127
150
188
0
0
4·52·5·6·5·6

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:
T1 T2 T3