Database of Zeolite Structures
 

Framework Type AFR
Coordination Sequences and Vertex Symbols
T-atom Name
N1 to N10 (or 12)
Vertex Symbola
T1
4
9
16
27
43
63
88
115
141
171
0
0
4·6·4·62·4·8
T2
4
9
18
30
43
64
90
111
140
181
0
0
4·4·4·8·63·8
T3
4
9
18
29
42
66
93
112
139
177
0
0
4·4·4·12·6·63
T4
4
10
17
28
47
65
86
117
144
169
0
0
4·6·4·6·6·12

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 T2-3 T4