Jump to main content
Jump to site search

Issue 35, 2015
Previous Article Next Article

PRESTO polarization transfer to quadrupolar nuclei: implications for dynamic nuclear polarization

Author affiliations

Abstract

We show both experimentally and numerically on a series of model systems that in experiments involving transfer of magnetization from 1H to the quadrupolar nuclei under magic-angle-spinning (MAS), the PRESTO technique consistently outperforms traditionally used cross polarization (CP), affording more quantitative intensities, improved lineshapes, better overall sensitivity, and straightforward optimization. This advantage derives from the fact that PRESTO circumvents the convoluted and uncooperative spin dynamics during the CP transfer under MAS, by replacing the spin-locking of quadrupolar nuclei with a single central transition selective 90° pulse and using a symmetry-based recoupling sequence in the 1H channel. This is of particular importance in the context of dynamic nuclear polarization (DNP) NMR of quadrupolar nuclei, where the efficient transfer of enhanced 1H polarization is desired to obtain the highest sensitivity.

Graphical abstract: PRESTO polarization transfer to quadrupolar nuclei: implications for dynamic nuclear polarization

Back to tab navigation

Article information


Submitted
15 Jul 2015
Accepted
04 Aug 2015
First published
04 Aug 2015

Phys. Chem. Chem. Phys., 2015,17, 22616-22622
Article type
Paper
Author version available

PRESTO polarization transfer to quadrupolar nuclei: implications for dynamic nuclear polarization

F. A. Perras, T. Kobayashi and M. Pruski, Phys. Chem. Chem. Phys., 2015, 17, 22616
DOI: 10.1039/C5CP04145G

Social activity

Search articles by author

Spotlight

Advertisements