Database of Zeolite Structures
 
Framework Type CSV
29Si MAS NMR spectrum of calcined pure silica CIT-7


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)
-115.59
1.000
0.28
0.907
B
Q4(0Al)
-115.21
1.000
0.46
0.907
C
Q4(0Al)
-115.15
1.000
0.46
0.907
D
Q4(0Al)
-111.29
1.000
0.44
0.907
E
Q4(0Al)
-111.26
1.000
0.44
0.907
F
Q4(0Al)
-110.97
1.000
0.44
0.907
G
Q4(0Al)
-109.56
1.000
0.42
0.907
H
Q4(0Al)
-109.23
1.000
0.42
0.907
I
Q4(0Al)
-108.78
1.000
0.33
0.907
J
Q4(0Al)
-106.71
1.000
0.43
0.907


References
Spectrum

  Authors: Schmidt, J.E., Xie, D., Rea, T. and Davis, M.E.
  Title: CIT-7, a crystalline, molecular sieve with pores bounded by 8 and 10-membered rings
  Reference: Chem. Sci., 6, 1728-1734 (2015)
  Figure: Figure 2  

Crystal Structure

  Authors: Schmidt, J.E., Xie, D., Rea, T. and Davis, M.E.
  Title: CIT-7, a crystalline, molecular sieve with pores bounded by 8 and 10-membered rings
  Reference: Chem. Sci., 6, 1728-1734 (2015)

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. 99.4 MHz (Field = 11.8 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

  [Si20O40]-CSV

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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