Database of Zeolite Structures
 

Framework Type IWV
Reference Material
  Material Name: ITQ-27    
 
Chemical Formula:
 
[Al5Si147O304]-IWV
 
   
Unit Cell:
 
orthorhombic

 F m m m (# 69)
    a' = 27.7508Å b' = 25.2969Å c' = 13.7923Å  
    α' = 90.000 ° β' = 90.000° γ' = 90.000°  
   
Framework Density:
 
15.7 T/1000 Å3
 
 
Channels:
 
{ [001] 12 6.2 x 6.9 <-> [011] 12 6.2 x 6.9 }**
Dimensionality
  Sorption (molecular cross section > 3.4Å): 2-dimensional
  Topological (pore opening > 6-ring): 2-dimensional
    Note:
The channel dimensions are limited by the same 12-ring in both directions
   
References:
  Dorset, D.L., Kennedy, G.J., Strohmaier, K.G., Díaz-Cabañas, M.J., Rey, F. and Corma, A.
  "P-derived organic cations as structure-directing agents: synthesis of a high-silica zeolite (ITQ-27) with a two-dimensional 12-ring channel system"
J. Am. Chem. Soc., 128, 8862-8867 (2006)
 
 
Name and Code derivation:
    Instituto de Tecnologia Quimica Valencia - twenty-seven
  ITQ-27 (twenty-seven)
  IWV
Limiting Rings
 
12-ring viewed along [001]