Database of Zeolite Structures
 

Framework Type -ERS
Coordination Sequences and Vertex Symbols
T-atom Name
N1 to N10 (or 12)
Vertex Symbola
T1
4
11
19
27
42
59
78
102
131
169
212
262
5·5·5·5·5·6
T2
4
12
21
31
42
58
85
107
129
169
225
272
5·52·5·6·5·10
T3
4
11
19
29
41
57
74
104
134
171
208
258
5·5·5·52·5·10
T4
4
10
19
30
43
62
80
101
128
165
226
270
5·5·5·5·6·0
T5
3
9
17
27
41
60
78
90
125
166
205
257
5·0·5·0·5·0
T6
3
9
20
29
40
56
76
101
129
161
205
265
5·0·5·0·5·0
T7
4
12
16
23
40
64
80
88
121
170
220
253
5·5·5·5·5·5
T8
4
12
19
29
43
55
77
103
148
176
202
250
5·5·5·5·5·5

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: