Database of Zeolite Structures
 
 
Framework Type ATT
Framework
Cell Parameters: orthorhombic P m m a (# 51)  
    a = 9.9800 Å b = 7.5140 Å c = 9.3690Å  
  α = 90.000° β = 90.000° γ = 90.000°  
Volume = 702.6Å3  
RDLS = 0.0027  
  Framework density (FDSi): 17.1 T/1000 Å3  
  Topological density: TD10 = 768 TD = 0.647619  
Ring sizes (# T-atoms): 8  6  4    
Channel dimensionality: Topological (pore opening > 6-ring): 2-dimensional  
  Maximum diameter of a sphere:  
  that can be included 5.42 Å  
that can diffuse along a:   3.79 Å b:   3.69 Å c:   1.41 Å  
Accessible volume: 9.18   %  
Secondary Building Units: 4-2 or   6        
Composite Building Units:
abw (t-kdq )
gis (t-gsm )
  Chains: dcc
  Chains: dsc
Natural Tiling t-gsm t-kdq
Framework images
(click on icon for larger image)

Viewed along [100]

projection along [100]
viewed along [010]
projection along [010]
8-ring channel viewed normal to [100]
8-ring channel viewed normal to [010]

 


Year code assigned 1987
Data last updated Jul 1, 2007