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Application of DEFT and SEFT for signal-to-noise ratio enhancement and T2-selective spectra in 29Si MAS NMR of zeolites (1992)

Anderson, Michael W.

Chichester : Wiley-Blackwell

Organic Magnetic Resonance 30 (1992), S. 898-904

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ISSN: 0749-1581

Keywords: Solid-state NMR ; Zeolite ; 29Si ; MAS NMR ; T2 relaxation ; Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Driven equilibrium and spin-echo Fourier transform spectroscopy (DEFT and SEFT) were used to observe 29Si high-resolution solid-state nuclear magnetic resonance with magic-angle spinning (MAS NMR) spectra of zeolites. The sequences allow the measurement of T2 relaxation times, dramatic improvements in signal-to-noise ratios and selective observation of signals with long T2 relaxation times. This last criterion permits the simplification of 29Si spectra of highly aluminous zeolites, yielding important crystallographic information.

Additional Material: 7 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/mrc.1260300919

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