Database of Zeolite Structures
 

Framework Type CFI
Reference Material
  Material Name: CIT-5    
 
Chemical Formula:
 
[Si32O64]-CFI
 
   
Unit Cell:
 
orthorhombic

 P m n 21 (# 74)
    a' = 13.6740 Å b' = 5.0220 Å c' = 25.4880 Å  
    α' = 90.000° β' = 90.000° γ' = 90.000°  
   
Framework Density:
 
18.3 T/1000 Å3
 
 
Channels:
 
[010] 14 7.2 x 7.5*
Dimensionality
  Sorption (molecular cross section > 3.4Å): 1-dimensional
  Topological (pore opening > 6-ring): 1-dimensional
   
References:
  Yoshikawa, M., Wagner, P., Lovallo, M., Tsuji, K., Takewaki, T., Chen, C.Y., Beck, L.W., Jones, C., Tsapatsis, M., Zones, S.I. and Davis, M.E.
  "Synthesis, characterization, and structure solution of CIT-5, a new, high-silica, extra-large-pore molecular sieve"
J. Phys. Chem. B, 102, 7139-7147 (1998)
  Wagner, P., Yoshikawa, M., Lovallo, M., Tsuji, K., Taspatsis, M. and Davis, M.E.
  "CIT-5: a high-silica zeolite with 14-ring pores"
Chem. Commun., , 2179-2180 (1997)
Material name:   CIT-5
Chemical formula:   [Si32O64]-CFI
 
 
Name and Code derivation:
    California Institute of Technology - five
  CIT-5 (five)
  CFI
Limiting Rings
 
14-ring viewed along [010]