Database of Disordered Zeolite Structures
 
Intergrowth Family AFX-LEV
Periodic Building Unit
 
  Periodic Building Unit (PerBU): ABC-6 layer of hexagonally arranged (isolated) 6-rings  
 
  Layer symmetry P (6) m m  
 
 
  References

    Tsunoji, N., Gies, H., Funase, N., Kolb, U., Yokoi, T., Masahiro Sadakane, M. and Sano, T.
   "Dual Templating for AFX/LEV Intergrowth Zeolite."
  Chemistry Letters, 51, 121-123 (2022)
DOI: doi.org/10.1246/cl.210605

Connectivity pattern
Examples
The layers are stacked along the [001] direction using the following connectivity patterns

 
Symmetry
Operation*
Translation* Comment Image
  Overview showing the A, B and C positions of the ABC-6 layer
0
  A layer
1/3a, 2/3b
  B layer
2/3a, 1/3b
  C layer
 

* relative to the first layer


Effect on channel system
  The disorder blocks the 8-ring channel of AFX along [001].
Simplest ordered end members
The color of each layer reflects the translation used to generate it from the first layer (see table above).

 
  AFX
 
Cell Parameters: hexagonal P 63/m m c (# 194)
    a = 13.6740 Å b = 13.6740 Å c = 19.6950 Å  
  α = 90.0000° β = 90.0000° γ = 120.0000°  
Ring sizes (# T-atoms): 8 6 4  
Channel dimensionality: Topological (pore opening > 6-ring): 3-dimensional  
Channel system: [001] 8 3.4 x 3.6***  
 
ABC-6 stacking sequence:  AABBAACC
In this space group and setting, the PerBUs are stacked along [001]


Note: This polymorph corresponds to the ordered framework AFX
 
 
  LEV
 
Cell Parameters: trigonal R -3 m:H (# )
    a = 13.1680 Å b = 13.1680 Å c = 22.5780 Å  
  α = 90.0000° β = 90.0000° γ = 120.0000°  
Ring sizes (# T-atoms): 8 6 4  
Channel dimensionality: Topological (pore opening > 6-ring): 2-dimensional  
Channel system: [001] 8 3.6 x 4.8**  
 
ABC-6 stacking sequence: AABCCABBC
In this space group and setting, the PerBUs are stacked along [001]


Note: This polymorph corresponds to the ordered framework LEV