Database of Zeolite Structures
 

Framework Type VET
Reference Material
  Material Name: VPI-8    
 
Chemical Formula:		  
[Si17O34]-VET		  
   
Unit Cell: 		 
tetragonal
 P -4 (# 81)
    a' = 13.0450 Å b' = 13.0450 Å c' = 5.0340 Å  
    α' = 90.000° β' = 90.000° γ' = 90.000°  
   
Framework Density: 		 
19.8 T/1000 Å3
 
  
Channels: 		 
[001] 12 5.9 x 5.9*
Dimensionality
  Sorption (molecular cross section > 3.4Å): 1-dimensional
  Topological (pore opening > 6-ring): 1-dimensional
   
References:
  Freyhardt, C.C., Lobo, R.F., Khodabandeh, S., Lewis, J.E., Tsapatsis, M., Yoshikawa, M., Camblor, M.A., Pan, M., Helmkamp, M.M., Zones, S.I. and Davis, M.E.
  "VPI-8: A high-silica molecular sieve with a novel ''pinwheel'' building unit and its implications for the synthesis of extra-large pore molecular sieves"
J. Am. Chem. Soc., 118, 7299-7310 (1996)
 
  
Name and Code derivation:
    Virgina Polytechnic Institute - eight
  VPI-8 (eight)
  VET
Limiting Rings
 
12-ring viewed along [001]


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