-IVY: Type Material
 
Database of Zeolite Structures
 

Framework Type -IVY
Reference Material
  Material Name: ITQ-70    
 
Chemical Formula:		  
|TDEAP+6| [Si63O138H18]--IVY
TDEAP+ = C16H40N4P+ = tetrakis(diethylamino)phosphanium ion
= tetrakis(diethylamino)phosphonium
SMILES: CCN(CC)[P+](N(CC)CC)(N(CC)CC)N(CC)CC
Images:  stick or 
   
Unit Cell: 		 
hexagonal
 P 62 2 2 (# 180)
    a' = 9.2950 Å b' = 9.2950 Å c' = 9.5080 Å  
    α' = 90.000° β' = 90.000° γ' = 120.000°  
   
Framework Density: 		 
10.0 T/1000 Å3
 
  
Channels: 		 
<100> 18 10.3 x 11.1* <-> [001] 18 12.5 x 12.5*
Dimensionality
  Sorption (molecular cross section > 3.4Å): 3-dimensional
  Topological (pore opening > 6-ring): 3-dimensional
 
Stability:		  
The calcined material presents a well-defined porosity, with some structural disorder occuring during the calcination
   
References:
  Tirado, J.I., Sala, A., Bordes, A., Das, P.P., Palatinus, L., Nicolopoulos, S., Jordá, J.L., Vidal-Moya, A., Blasco, T., Sastre, G., Valencia, S. and Rey, F.
  "Synthesis and Structure Determination by 3D Electron Diffraction of the Extra-large Pore Zeolite ITQ-70"
Angew. Chem. Int. Ed. , 64, e202416515 (2025)
 
  
Name and Code derivation:
    Instituto de Tecnologia Quimica Valencia - seventy
  ITQ-70 (seventy)
  -IVY
Limiting Rings
 
18-ring along [100]

Helical channel viewed along [001]
formimg a pseudo-18-ring

Helical channel along [001]
viewed normal to [001]

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