EVF: Type Material
 
Database of Zeolite Structures
 

Framework Type EVF
Reference Material
  Material Name: EMM-75    
 
Chemical Formula:
 
[Si48O96]-EVF
   
Unit Cell:
 
orthorhombic

 P n n m (# 58)
    a' = 7.3673 Å b' = 17.7740 Å c' = 21.5690 Å  
    α' = 90.000° β' = 90.000° γ' = 90.000°  
   
Framework Density:
 
17.0 T/1000 Å3
 
 
Channels:
 
{[100] 12 8.2 x 6.2 <-> [010] 8 2.3 x 4.7 <-> [100] 8 2.4 x 5.8}**
Dimensionality
  Sorption (molecular cross section > 3.4Å): 1-dimensional
  Topological (pore opening > 6-ring): 2-dimensional
   
References:
  Ikonnikova, E., Cho, J., Zou, X., Sutrisno, A., Burton, A., Pham, T., Willhammar, T.
  "Low-dimensional zeotypes templated by stacked cyclic benzimidazolium revealed by electron crystallography"
J. Am. Chem. Soc., 148, 6686–6694 (2026)
 
 
Name and Code derivation:
    Exxon Mobil Material - seventy five
  EMM-75 (seventy five)
  EVF
Limiting Rings
 
12-ring viewed along [100]

8-ring viewed along [100]

8-ring viewed along [010]