Database of Zeolite Structures
 

Framework Type EEI
Reference Material
  Material Name: ERS-18    
 
Chemical Formula:
 
|(CpDABCO)8 | [Si200O400]-EEI
CpDABCO = C11H21N2+ = N-cyclopentyl-DABCO
= 1-Cyclopentyl-4-aza-1-azoniabicyclo[2.2.2]octane
SMILES: C1CCC(C1)[N+]23CCN(CC2)CC3   Images:  stick or 3D
 
   
Unit Cell:§
 
orthorhombic

 F m m 2 (# 69)
    a' = 13.7195 Å b' = 35.2245 Å c' = 22.1362 Å  
    α' = 90.000° β' = 90.000° γ' = 90.000°  
   
Framework Density:
 
18.7 T/1000 Å3
 
 
Channels:
 
[100] 8 2.6 x 4.4*
Dimensionality
  Sorption (molecular cross section > 3.4Å): 0-dimensional
  Topological (pore opening > 6-ring): 1-dimensional
   
References:
  Zanardi, S., Millini, R., Frigerio, F, Belloni, A., Cruciani, G., Bellussi, G., Carati, A., Rizzo, C. and Montanari, E.
  "ERS-18: a new member of the NON-EUO-NES zeolite family"
Microporous Mesoporous Mat., 143, 6-13 (2011)
Material name:   ERS-18
Chemical formula:   [Si200O400]-EEI
  § Smeets, S., Xie, D., McCusker, L.B., Baerlocher, Ch., Zones, S.I., Thompson, J.A., Lacheen, H., Huang, H.-M.
  "SSZ-45: a molecular sieve with large cavities and small pore openings"
Chem. Mater., 26, 3909-3913 (2014)
 
 
Name and Code derivation:
    Eniricerche-molecular-sieve-eighteen
  ERS-18 (eighteen)
  EEI
 
 
§ Chemical Formula and Unit Cell taken from the reference marked with this sign
Limiting Rings
 
8-ring viewed along [100]