Database of Zeolite Structures
 
 
Framework Type NPO
Framework
Cell Parameters: hexagonal P 63/m m c (# 194)  
    a = 9.1002 Å b = 9.1002 Å c = 5.2612Å  
  α = 90.000° β = 90.000° γ = 120.000°  
Volume = 377.3Å3  
RDLS = 0.0090  
  Framework density (FDSi): 15.9 T/1000 Å3  
  Topological density: TD10 = 869 TD = 0.75  
Ring sizes (# T-atoms): 12  6  3    
Channel dimensionality: Topological (pore opening > 6-ring): 1-dimensional  
  Maximum diameter of a sphere:  
  that can be included 4.23 Å  
that can diffuse along a:   2.08 Å b:   2.08 Å c:   3.71 Å  
Accessible volume: 2.80   %  
Secondary Building Units: 3          
Composite Building Units:
Natural Tiling t-ato t-npo
Framework images
(click on icon for larger image)

Viewed along [001]

projection along [001]
Framework viewed along [100]

 


Year code assigned 2004
Data last updated Jul 1, 2007