Multiplex MQMAS NMR of quadrupolar nuclei

abstract

A multiplex phase cycling method (N. Ivchenko et al., J. Magn. Reson. 160 (2003) 52-58) has been used to record two-dimensional MQMAS spectra with a very short phase cycling. A straightforward procedure has been developed to easily process the data. Combining this Multiplex approach and the new Soft-Pulse-Adding-Mixing (SPAM) method considerably increases the signal-to-noise ratio of the conventional MQMAS experiment. The Multiplex acquisition procedure is much simpler than the echo/ anti-echo method recently proposed, and has been applied with success to record Rb-87 spectra of RbNO3 and Al-27 3Q and 5Q MQMAS NMR of microporous aluminophosphate AIPO(4)-14. (c) 2005 Elsevier Inc. All rights reserved.

keywords

ANGLE-SPINNING NMR; QUANTUM MAS-NMR; RESOLUTION HETERONUCLEAR CORRELATION; FAST AMPLITUDE-MODULATION; TRIPLE-QUANTUM; MAGNETIC-RESONANCE; SIGNAL ENHANCEMENT; NA-23 MAS; 3QMAS NMR; O-17 NMR

subject category

Chemistry; Physics; Spectroscopy

authors

Malicki, N; Mafra, L; Quoineaud, AA; Rocha, J; Thibault-Starzyk, F; Fernandez, C

our authors

Share this project:

Related Publications

We use cookies for marketing activities and to offer you a better experience. By clicking “Accept Cookies” you agree with our cookie policy. Read about how we use cookies by clicking "Privacy and Cookie Policy".