Database of Zeolite Structures
 
Framework Type VFI
31P MAS NMR spectrum of as-made VPI-5 (hydrated)


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
P1
T2
Q4(4Al)
-32.97
1.00
1.70
0.319
P2
T1
Q4(4Al)
-27.23
1.00
1.54
0.319
P3
T1
Q4(4Al)
-23.60
1.00
1.81
0.319



References
Spectrum

  Authors: Grobet, P.J., Martens, J.A., Balakrishnan, I., Mertens, M., Jacobs, P.A.
  Title: The very large pore molecular sieve VPI-5: An aluminophosphate-hydrate
  Reference: Applied Catalysis, 56, L21-L27 (1989)
  Figure: Figure 1  

Peak Assignment

  Authors: Engelhardt, G., Veeman, W.S.
  Title: Assignment of the 27Al and 31P NMR spectra of the aluminophosphate molecular sieve VPI-5
  Reference: J. Chem. Soc., Chem. Commun., , 622-623 (1993)
  Method: 2D correlation NMR
  Figure: Table 1  

Crystal Structure

  Authors: McCusker, L.B., Baerlocher, Ch., Jahn, E. and Bülow, M.
  Title: The triple helix inside the large-pore aluminophosphate molecular sieve VPI-5
  Reference: Zeolites, 11, 308-313 (1991)
Spectrum information

  Obs. freq. 162 MHz (Field = 9.4 Tesla)
  Pulse sequence single pulse
  MAS frequency 5 kHz
  Spectrum Digitized and processed by Brouwer Lab, Redeemer University
  Data processing Spectrum digitized with WebPlotDigitizer and deconvoluted with Mathematica notebook
 
  CommentPeak assignments based on the 2D 27Al/31P correlation spectrum in van Eck and Veeman, JACS 115, 1168-1169 (1993) Figure 3

Chemical Formula

  [Al - P - O]-VFI

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)