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Updated: May 9, 2026

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Published on: December 1, 2020
A Floquet description of phase alternated sequences for efficient homonuclear recoupling in solid perdeuterated
Sundaresan Jayanthi1, Ümit Akbey, Boran Uluca
1Department of Chemical Physics, Weizmann Institute of Science, Rehovot 76100, Israel.
Abstract:
A Floquet description of a phase alternated homonuclear recoupling scheme for perdeuterated systems is presented. As a result, we demonstrate improvements in the recoupling efficiency of the DOuble Nucleus Enhanced Recoupling [DONER; J. Am. Chem. Soc. 131 (2009) 17054] technique by utilizing Phase Alternated Recoupling Irradiation Schemes [PARIS; Chem. Phys. Lett. 469 (2009) 342]. The effect of proton and deuterium radio frequency irradiation during recoupling has been systematically studied and theoretical observations have been verified experimentally using a deuterated model compound, L-Alanine, at 10 and 20 kHz magic angle spinning frequency. Experimental results are well in agreement with theoretical observations, thereby significantly increasing the recoupling efficiency of conventional DONER in perdeuterated systems.
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