Database of Disordered Zeolite Structures
 
Intergrowth Family SSZ-33
Periodic Building Unit
 
  Periodic Building Unit (PerBU): CON layer  
 
  Layer symmetry P m m (2)  
 
  2D cell parameters a = 13.3 Å, b = 12.6 Å  
 
  References

    Lobo, R.F., Pan, M., Chan, I., Li, H.X., Medrud, R.C., Zones, S.I., Crozier, P.A. and Davis, M.E.
   "SSZ-26 and SSZ-33 - 2 Molecular Sieves with Intersecting 10-Ring and 12-Ring Pores"
  Science, 262, 1543-1546 (1993)

Connectivity pattern
Examples


 
Symmetry
Operation*
Translation* Comment Image
1/2 a + 1/3 b
  
1/2 a - 1/3 b
  
 

* relative to the previous layer


Effect on channel system
  The disorder does not block the channel system
Simplest ordered end members
The color of each layer reflects the symmetry/translation operation used to generate it from the previous layer (see table above).

 
  Polymorph A
 
Cell Parameters: orthorhombic P n m a (# 62)
    a = 13.3026 Å b = 12.5934 Å c = 21.3123 Å  
  α = 90.0000° β = 90.0000° γ = 90.0000°  
Ring sizes (# T-atoms): 12 10 6 5 4  
Channel dimensionality: Topological (pore opening > 6-ring): 3-dimensional  
 
In this space group and setting, the PerBUs are stacked along [001]


Note: This polymorph has NOT been observed as a pure ordered material
 
 
  Polymorph B (CON)
 
Cell Parameters: monoclinic C 1 2/m 1 (# 12)
    a = 22.6840 Å b = 13.3730 Å c = 12.5530 Å  
  α = 90.0000° β = 110.5200° γ = 90.0000°  
Ring sizes (# T-atoms): 12 10 6 5 4  
Channel dimensionality: Topological (pore opening > 6-ring): 3-dimensional  
Channel system: [001] 12 6.4 x 7.0* <-> [100] 10 4.5 x 5.1* <-> [010] 10 4.5 x 5.1*  
 
In this space group and setting, the PerBUs are stacked along [100]
Adjacent layers generated by the same connectivity pattern (same basic color) are shown with different shades for clarity.

Note: This polymorph corresponds to the ordered framework CON