Database of Zeolite Structures
 
Framework Type EWE
29Si MAS NMR spectrum of calcined and steamed pure silica EMM-28


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)
-118.40
1.000
1.97
0.500
B
Q4(0Al)
-116.64
2.000
2.48
0.500
C
Q4(0Al)
-114.66
1.000
2.63
0.500
D
Q4(0Al)
-112.98
1.000
2.63
0.500
E
Q4(0Al)
-112.22
1.000
2.63
0.500
F
Q4(0Al)
-112.02
2.000
2.63
0.500
G
Q4(0Al)
-109.01
2.000
2.34
0.500
H
Q4(0Al)
-108.81
2.000
2.34
0.500
I
Q4(0Al)
-106.62
1.000
2.34
0.500
J
Q4(0Al)
-103.28
1.000
1.97
0.500


References
Spectrum

  Authors: Cichocka, M. O., Burton, A. W., Afeworki, M., Mabon, R., Schmitt, K. D., Strohmaier, K. G., Vroman, H. B., Marella, M. A., Weston, S. C., Zou, X. and Willhammar, T.
  Title: Aluminosilicate Zeolite EMM-28 Containing Supercavities Determined by Continuous Rotation Electron Diffraction
  Reference: Inorg. Chem. , 61, 11103−11109 (2022)
  Figure: Figure 2  

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. 99.36 MHz (Field = 11.7 Tesla)
  Pulse sequence single pulse
  Spectrum Digitized and processed by Brouwer Lab, Redeemer University
  Data processing Spectrum digitized with WebPlotDigitizer and deconvoluted with Mathematica notebook
 

Chemical Formula

  [Al0.56Si223.44O448]-EWE

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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