Database of Zeolite Structures
 

Framework Type MEI
Coordination Sequences and Vertex Symbols
T-atom Name
N1 to N10 (or 12)
Vertex Symbola
T1
4
9
18
30
46
63
94
125
152
183
0
0
4·4·4·12·5·7
T2
4
10
17
30
46
67
91
123
153
190
0
0
4·5·4·7·5·12
T3
4
10
16
26
46
66
94
114
158
194
0
0
3·7·5·5·5·5
T4
4
9
18
30
39
67
98
121
147
189
0
0
4·7·4·7·4·7

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 T2 T3 T4