Database of Zeolite Structures
 

Framework Type PUN
Type Material
  Material Name: PKU-9    
 
Chemical Formula:
 
|(C5H14N)+18 |[Ge28Al8O72]-PUN
 
   
Unit Cell:
 
orthorhombic

 P b c n (# 60)
    a' = 15.5780Å b' = 9.1704Å c' = 19.9930Å  
    α' = 90.000 ° β' = 90.000° γ' = 90.000°  
   
Framework density:
 
12.6 T/1000 Å3
 
 
Channels:
 
[010] 12 6.3 x 7.6* <-> [100] 10 4.7 x 7.0* <-> [001] 8 4.5 x 5.6*
Dimensionality
  Sorption (molecular cross section > 3.4Å): 3-dimensional
  Topological (pore opening > 6-ring): 3-dimensional
   
References:
  Su, J., Wang, Y., Wang, Z. and Lin, J.
   "PKU-9: an aluminogermanate with a new three-dimensional zeolite framework constructed from CGS layers and spiro-5 units"
   J. Am. Chem. Soc., 131, 6080-6081 (2009)
 
 
Name and Code derivation:
    Peking University - nine
  PKU-9 (nine)
  PUN
Limiting Rings
 
12-ring viewed along [010]

10-ring viewed along [100]

8-ring viewed along [001]