Database of Zeolite Structures
 
Framework Type BEC
29Si MAS NMR spectrum of pure silica Beta polymorph C


Note: Toggle plots by clicking on the legend

Peak
T site
Q-type
Chemical Shift
Relative
Peak Width
Peak Shape
Assigment
(topological)
(ppm)
Peak Area
(ppm)
(x)L (1-x)G
Si3
T3
Q4(0Al)
-116.29
1.000
0.99
0.923
Si2
T2
Q4(0Al)
-111.77
1.000
0.98
0.739
Si1
T1
Q4(0Al)
-109.72
2.000
1.00
0.508


References
Spectrum

  Authors: Cantin, A., Corma, A., Diaz-Cabanas, M.J., Jorda, J.L., Moliner, M., Rey, F.
  Title: Synthesis and characterization of the all-silica pure polymorph C and an enriched polymorph B intergrowth of zeolite Beta
  Reference: Angew. Chem. Int. Ed., 45, 8013-8015 (2006)
  Figure: Supp Info Figure B  

Peak Assignment

  Authors: Cantin, A., Corma, A., Diaz-Cabanas, M.J., Jorda, J.L., Moliner, M., Rey, F.
  Title: Synthesis and characterization of the all-silica pure polymorph C and an enriched polymorph B intergrowth of zeolite Beta
  Reference: Angew. Chem. Int. Ed., 45, 8013-8015 (2006)
  Method: Relative intensities and average bond angles
  Figure: Supp Info Figure B  

Crystal Structure

  Authors: Cantin, A., Corma, A., Diaz-Cabanas, M.J., Jorda, J.L., Moliner, M., Rey, F.
  Title: Synthesis and characterization of the all-silica pure polymorph C and an enriched polymorph B intergrowth of zeolite Beta
  Reference: Angew. Chem. Int. Ed., 45, 8013-8015 (2006)

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. not given
  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

  [Si - O]-BEC

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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