Database of Zeolite Structures
 

Framework Type *UOE
Reference Material
  Material Name: IM-18    
 
Chemical Formula:
 
|(DMAP)0.74F0.59|4 [Si9.14Ge2.86O24]4-*UOE
DMAP = C7H10N2 = 4-dimethylaminopyridine
= N,N-dimethylpyridin-4-amine
SMILES: CN(C)C1=CC=NC=C1   Images:  stick or 3D
 
   
Unit Cell:
 
monoclinic

 P 1 21/m 1 (# 10)
    a' = 10.5089 Å b' = 14.9425 Å c' = 17.7775 Å  
    α' = 90.000° β' = 107.323° γ' = 90.000°  
   
Framework Density:
 
18.0 T/1000 Å3
 
 
Channels:
 
([010] 10 4.0 x 6.4 <-> [001] 8 4.0 x 4.7 <-> [010] 10 3.8 x 6.1)** <-> [100] 8 3.3 x 3.5*
Dimensionality
  Sorption (molecular cross section > 3.4Å): 2-dimensional
  Topological (pore opening > 6-ring): 3-dimensional
   
References:
  Cichocka, M.O., Lorgouilloux, Y., Smeets, S., Su, J., Wan, W., Caullet, P., Bats, N., McCusker, L.B., Paillaud, J.L. and Zou, X.D.
  "Multidimensional disorder in zeolite IM-18 revealed by combining transmission electron microscopy and X-ray powder diffraction analyses"
Crystal Growth Des., 18, 2441-2451 (2018)
 
 
Name and Code derivation:
    Institut Français du Pétrole and University of Mulhouse - eighteen
  IM-18, Mulhouse (one-eight)
  *UOE
Limiting Rings
 
Larger 10-ring along [010]

Smaller 10-ring along [010]

8-ring along [001]

8-ring along [100]