Database of Zeolite Structures
 

Framework Type ATT
Reference Material
  Material Name: AlPO-12-TAMU    
 
Chemical Formula:		  
|(TMA+)2 (OH)2|2 [Al6P6O24]2-ATT
TMA+ = C4H12N+ = tetramethylammonium ion
= tetramethylazanium
SMILES: C[N+](C)(C)C   Images:  stick or 3D		  
   
Unit Cell: 		 
orthorhombic
 P 21 21 2 (# 18)
    a' = 10.3320 Å b' = 14.6400 Å c' = 9.5110 Å  
    α' = 90.000° β' = 90.000° γ' = 90.000°  
(Relationship to unit cell of Framework Type: a' = a, b' = 2b, c' = c)
   
Framework Density: 		 
16.7 T/1000 Å3
 
  
Channels: 		 
[100] 8 4.2 x 4.6* <-> [010] 8 3.8 x 3.8*
Dimensionality
  Sorption (molecular cross section > 3.4Å): 2-dimensional
  Topological (pore opening > 6-ring): 2-dimensional
   
References:
  Rudolf, P.R., Saldarriaga-Molina, C. and Clearfield, A.
  "Preparation and x-ray powder structure solution of a novel aluminum phosphate molecular sieve, (AlPO4)3·(CH3)4NOH"
J. Phys. Chem., 90, 6122-6125 (1986)
 
  
Name and Code derivation:
    AlPO4-12-Texas A&M University
  AlPO4-12 (twelve)-TAMU
  ATT
Limiting Rings
 
8-ring viewed along [100]

complex 8-ring viewed along [010]


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