Database of Zeolite Structures
 

Framework Type UTL
Reference Material
  Material Name: IM-12    
 
Chemical Formula:		  
[Ge13.8Si62.2O152]-UTL		  
   
Unit Cell: 		 
monoclinic
 C 1 2/m 1 (# 12)
    a' = 29.8004 Å b' = 13.9926 Å c' = 12.3926 Å  
    α' = 90.000° β' = 105.185° γ' = 90.000°  
   
Framework Density: 		 
15.2 T/1000 Å3
 
  
Channels: 		 
[001] 14 7.1 x 9.5* <-> [010] 12 5.5 x 8.5*
Dimensionality
  Sorption (molecular cross section > 3.4Å): 2-dimensional
  Topological (pore opening > 6-ring): 2-dimensional
   
References:
  Paillaud, J.-L., Harbuzaru, B., Patarin, J. and Bats, N.
  "Extra-large-pore zeolites with two-dimensional channels formed by 14- and 12-rings"
Science, 304, 990-992 (2004)
 
  
Name and Code derivation:
    Institut Français du Pétrole and University of Mulhouse - twelve
  IM-12, Mulhouse (twelve)
  UTL
Limiting Rings
 
14-ring viewed along [001]

12-ring viewed along [010]


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