Database of Zeolite Structures
 
 
Framework Type ITT
Framework
Cell parameters: hexagonal P 6/m m m (# 191)
    a = 18.8677 Å b = 18.8677 Å c = 11.6332 Å  
  α = 90.000° β = 90.000° γ = 120.000°  
Volume = 3586.6 Å3  
RDLS = 0.0000  
  Framework density (FDSi): 12.8 T/1000 Å3  
  Topological density: TD10 = 625  
Essential rings: [181·101·62·52·43·31]  
Channel dimensionality: Topological (pore opening > 6-ring): 3-dimensional  
  Maximum diameter of a sphere:  
  that can be included 11.74 Å  
that can diffuse along a:   2.29 Å b:   2.29 Å c:   11.2 Å  
Accessible volume: 25.10   %  
Composite Building Units:
d4r (t-cub )
mel
Natural Tiling t-cub t-irr-3 t-itt t-kah t-mel t-uwy-1 t-znb
Framework images
(click on icon for larger image)
viewed along [001]

projection along [001]
viewed along <100>
projection along <100>
chain along [001]
Shear planes
 
Shear plane reported along {100} with c/2 shift

A probable location is shown in the pictures to the right.
References
"Disorder in extra-large pore zeolite ITQ-33 revealed by single crystal XRD"
Liu, L., Yu, Z.-B., Chen, H., Deng, Y., Lee, B.-L. and Sun, J.
Crystal Growth & Design, 13, 4168-4171 (2013)
Shear planes viewed along [001]

Example of {100} shear plane

 

Year code assigned 2013
Data last updated June 30, 2023

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