Database of Zeolite Structures
 
 
Framework Type HEU
Framework
Cell Parameters: monoclinic C 1 2/m 1 (# 12)  
    a = 17.5230 Å b = 17.6440 Å c = 7.4010Å  
  α = 90.000° β = 116.104° γ = 90.000°  
Volume = 2054.8Å3  
RDLS = 0.0019  
  Framework density (FDSi): 17.5 T/1000 Å3  
  Topological density: TD10 = 909 TD = 0.778254  
Ring sizes (# T-atoms): 10  8  5  4    
Channel dimensionality: Topological (pore opening > 6-ring): 2-dimensional  
  Maximum diameter of a sphere:  
  that can be included 5.97 Å  
that can diffuse along a:   3.05 Å b:   1.34 Å c:   3.67 Å  
Accessible volume: 9.42   %  
Secondary Building Units: 4-4=1          
Composite Building Units:
bre (t-bru )
Natural Tiling t-bru t-heu-1 t-heu-2
Framework images
(click on icon for larger image)

Viewed along [001]

projection along [001]
viewed along [100]
projection along [100]
layer viewed along [010]

 


Year code assigned 1978
Data last updated Jul 1, 2007