Database of Zeolite Structures
 

Framework Type POS
Reference Material
  Material Name: PKU-16    
 
Chemical Formula:		  
|(DMAP)8(H2O)12.2(HF)5.8| [Ge26.1Si37.9O128]-POS
DMAP = C7H10N2 = 4-dimethylaminopyridine
= N,N-dimethylpyridin-4-amine
SMILES: CN(C)C1=CC=NC=C1   Images:  stick or 3D		  
   
Unit Cell: 		 
tetragonal
 P 42/m n m (# 136)
    a' = 19.0592 Å b' = 19.0592 Å c' = 11.6968 Å  
    α' = 90.000° β' = 90.000° γ' = 90.000°  
   
Framework Density: 		 
15.1 T/1000 Å3
 
  
Channels: 		 
[001] 12 7.5 x 7.5* <-> <110> 11 6.7 x 4.6**
Dimensionality
  Sorption (molecular cross section > 3.4Å): 3-dimensional
  Topological (pore opening > 6-ring): 3-dimensional
   
References:
  Hua, W., Chen, H., Yu, Z.-B., Zou, X., Lin, J. and Sun, J.
  "A Germanosilicate Structure with 11x11x12-Ring Channels Solved by Electron Crystallography"
Angew. Chem. Int. Ed., 53, 5868-5871 (2014)
 
  
Name and Code derivation:
    Peking University - sixteen
  PKU-16 (one-six)
  POS
Limiting Rings
 
12-ring viewed along [001]

11-ring viewed along [110]


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