Database of Zeolite Structures
 

Framework Type ITR
Reference Material
  Material Name: ITQ-34    
 
Chemical Formula:
 
[Si100.8Ge11.2O224]-ITR
 
   
Unit Cell:
 
orthorhombic

 C m c m (# 63)
    a' = 11.5086 Å b' = 22.1730 Å c' = 25.2558 Å  
    α' = 90.000° β' = 90.000° γ' = 90.000°  
   
Framework Density:
 
17.4 T/1000 Å3
 
 
Channels:
 
[100] 10 4.8 x 6.0* <-> [010] 10 4.7 x 5.8* <-> [001] 9 4.1 x 5.1*
Dimensionality
  Sorption (molecular cross section > 3.4Å): 3-dimensional
  Topological (pore opening > 6-ring): 3-dimensional
   
References:
  Corma, A., Díaz-Cabañas, M.J., Jorda, J.L., Rey, F., Sastre, G., and Strohmaier, K.G
  "A zeolitic structure (ITQ-34) with connected 9- and 10-Ring channels obtained using phosphonium cations as structure directing agents"
J. Am. Chem. Soc., 130, 16482 (2008)
 
 
Name and Code derivation:
    Instituto de Tecnologia Quimica Valencia - thirty-four
  ITQ-34 (thirty-four)
  ITR
Limiting Rings
 
10-ring viewed along [100]

10-ring viewed along [010]

9-ring viewed along [001]