Database of Zeolite Structures
 
Framework Type ITW
29Si MAS NMR spectrum of calcined pure silica ITQ-12


Note: Toggle plots by clicking on the legend

Peak
Q-type
Chemical Shift
Relative
Peak Width
Peak Shape
Label
(ppm)
Peak Area
(ppm)
(x)L (1-x)G
A
Q4(0Al)
-118.32
1.000
0.44
0.402
B
Q4(0Al)
-114.53
1.000
0.74
0.402
C
Q4(0Al)
-112.26
1.000
0.45
0.402
D
Q4(0Al)
-111.87
1.000
0.45
0.402
E
Q4(0Al)
-111.05
1.000
0.43
0.402
F
Q4(0Al)
-110.06
1.000
0.49
0.402


References
Spectrum

  Authors: Khay, I., Tzanis, L., Daou, T.J., Nouali, H., Ryzhikov, A., Patarin, J.
  Title: Energetic behavior of the pure silica ITQ-12 (ITW) zeolite under high pressure water intrusion
  Reference: PCCP, 15, 20320-20325 (2013)
  Figure: Figure 6  

Crystal Structure

  Authors: Rojas, A., Martinez-Morales, E., Zicovich-Wilson, C.M., Camblor, M.A.
  Title: Zeolite synthesis in fluoride media: Structure direction toward ITW by small methylimidazolium cations
  Reference: J. Am. Chem. Soc., 134, 2255-2263 (2012)

Digitization and Modeling of Spectrum

  To reference this collection of solid-state NMR spectra, we suggest:
  Authors: Brouwer, D.H., Brouwer, C.C., Mesa, S., Semelhago, C.A., Steckley, E.E., Sun, M.P.Y., Mikolajewski, J.G., and Baerlocher, Ch.
  Title: Solid-state 29Si NMR spectra of pure silica zeolites for the International Zeolite Association Database of Zeolite Structures
  Reference: Microporous Mesoporous Mat., 297, 110000 (2020)
Spectrum information

  Obs. freq. 59.6 MHz (Field = 7 Tesla)
  Pulse sequence single pulse
  MAS frequency 4 kHz
  Spectrum Digitized and processed by Brouwer Lab, Redeemer University
  Data processing Spectrum digitized with WebPlotDigitizer and deconvoluted with Mathematica notebook
 

Chemical Formula

  [Si - O]-ITW

Downloads

  Download digitized spectrum in JCAMP-DX format
(This file includes also the data listed on this page)
  Download all lines from the above plot in .csv format
(This file contains only the plotted data)

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