Database of Zeolite Structures
 
Framework Type STW
29Si MAS NMR spectrum of as-synthesized pure silica HPM-1 (with 2-ethyl-1,3,4-trimethylimidazolium fluoride)


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)
-113.64
1.00
1.35
1.000
B
Q4(0Al)
-106.86
1.00
1.27
1.000
C
Q4(0Al)
-106.38
1.00
1.27
1.000
D
Q4(0Al)
-106.04
1.00
1.27
1.000
E
Q4(0Al)
-105.58
1.00
1.27
1.000



References
Spectrum

  Authors: Rojas, A., Arteaga, O., Kahr, B., Camblor, M.A.
  Title: Synthesis, structure, and optical activity of HPM-1, a pure silica chiral zeolite
  Reference: J. Am. Chem. Soc., 135, 11975-11984 (2013
DOI: 10.1021/ja405088c)
  Figure: Figure 3  

Crystal Structure

  Authors: Rojas, A., Arteaga, O., Kahr, B., Camblor, M.A.
  Title: Synthesis, structure, and optical activity of HPM-1, a pure silica chiral zeolite
  Reference: J. Am. Chem. Soc., 135, 11975-11984 (2013)
DOI: 10.1021/ja405088c

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)
DOI: 10.1016/j.micromeso.2020.110000
Spectrum information

  Obs. freq. 79.49 MHz (Field = 9.4 Tesla)
  Pulse sequence single pulse
  MAS frequency 10 kHz
  Spectrum Digitized and processed by Brouwer Lab, Redeemer University
  Data processing Spectrum digitized with WebPlotDigitizer and deconvoluted with Mathematica notebook
 

Chemical Formula

  |(ETMI+)6F6| [Si60O129]-STW
ETMI+ = C8H15N2+= 2-ethyl-1,3,4-trimethylimidazol-1-ium    (stick drawing)

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)