Design of organically functionalised hybrid silica fibres through the use of anthracenic organogelatorsElectronic supplementary information (ESI) available: SEM images of other non-calcined/unwashed hybrid samples prepared using DDOA (non-hydrolytic conditions) and DAP organogelators (Fig. S1); additional SEM images of calcined/washed organosilicas (Fig. S2); 29Si MAS NMR spectra of samples A and B (Fig. S3). See http://www.rsc.org/suppdata/jm/b2/b212465n/

2003 ◽  
Vol 13 (3) ◽  
pp. 442-444 ◽  
Author(s):  
Mario Llusar ◽  
Cécile Roux ◽  
Jean L. Pozzo ◽  
Clément Sanchez
Keyword(s):  
Nmr Spectra ◽  
Mas Nmr ◽  
Supplementary Information ◽  
29Si Mas Nmr ◽  
Sem Images ◽  
Hybrid Silica

C-S-H Gels: Interpretation of 29Si MAS-NMR Spectra

2012 ◽  
Vol 95 (4) ◽  
pp. 1440-1446 ◽  
Author(s):  
Ines García-Lodeiro ◽  
Ana Fernández-Jiménez ◽  
Isabel Sobrados ◽  
Jesus Sanz ◽  
Angel Palomo
Keyword(s):  
Nmr Spectra ◽  
Mas Nmr ◽  
29Si Mas Nmr

scholarly journals Local Structures of Two-Dimensional Zeolites—Mordenite and ZSM-5—Probed by Multinuclear NMR

Molecules ◽  
2020 ◽  
Vol 25 (20) ◽  
pp. 4678 ◽  
Author(s):  
Marina G. Shelyapina ◽  
Rosario I. Yocupicio-Gaxiola ◽  
Iuliia V. Zhelezniak ◽  
Mikhail V. Chislov ◽  
Joel Antúnez-García ◽  
...  
Keyword(s):  
Nmr Spectra ◽  
Structural Changes ◽  
Resonance Method ◽  
Magic Angle Spinning ◽  
Mas Nmr ◽  
Magic Angle ◽  
Nuclear Magnetic Resonance Method ◽  
29Si Mas Nmr ◽  
Zeolite Framework ◽  
One Pot

Mesostructured pillared zeolite materials in the form of lamellar phases with a crystal structure of mordenite (MOR) and ZSM-5 (MFI) were grown using CTAB as an agent that creates mesopores, in a one-pot synthesis; then into the CTAB layers separating the 2D zeolite plates were introduced by diffusion the TEOS molecules which were further hydrolyzed, and finally the material was annealed to remove the organic phase, leaving the 2D zeolite plates separated by pillars of silicon dioxide. To monitor the successive structural changes and the state of the atoms of the zeolite framework and organic compounds at all the steps of the synthesis of pillared MOR and MFI zeolites, the nuclear magnetic resonance method (NMR) with magic angle spinning (MAS) was applied. The 27Al and 29Si MAS NMR spectra confirm the regularity of the zeolite frameworks of the as synthetized materials. Analysis of the 1H and 13C MAS NMR spectra and an experiment with variable contact time evidence a strong interaction between the charged “heads” –[N(CH3)3]+ of CTAB and the zeolite framework at the place of [AlO4]− location. According to 27Al and 29Si MAS NMR the evacuation of organic cations leads to a partial but not critical collapse of the local zeolite structure.

Ultra-high resolution 29Si MAS NMR spectra of highly siliceous zeolites

Nature ◽  
1987 ◽  
Vol 326 (6110) ◽  
pp. 281-283 ◽  
Author(s):  
C. A. Fyfe ◽  
J. H. O'Brien ◽  
H. Strobl
Keyword(s):  
High Resolution ◽  
Nmr Spectra ◽  
Mas Nmr ◽  
29Si Mas Nmr

ChemInform Abstract: 29Si MAS NMR Spectra of Lamellar Silicic Acid H-Magadiite and Its Trimethylsilyl Derivative.

ChemInform ◽  
1987 ◽  
Vol 18 (7) ◽  
Author(s):  
J. M. ROJO ◽  
J. SANZ ◽  
E. RUIZ-HITZKY ◽  
J. M. SERRATOSA
Keyword(s):  
Silicic Acid ◽  
Nmr Spectra ◽  
Mas Nmr ◽  
Trimethylsilyl Derivative ◽  
29Si Mas Nmr

29Si-MAS-NMR spectra of keatite-type aluminosilicates

1992 ◽  
Vol 200 (3-4) ◽  
Author(s):  
K. Stumpf-Nothof ◽  
N. Weiden ◽  
G. Müller
Keyword(s):  
Nmr Spectra ◽  
Mas Nmr ◽  
29Si Mas Nmr

Abstract

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