Investigating FAM-N pulses for signal enhancement in MQMAS NMR of quadrupolar nuclei.
Sign Up to like & getrecommendations! Published in 2017 at "Solid state nuclear magnetic resonance"
DOI: 10.1016/j.ssnmr.2017.01.001
Abstract: Although a popular choice for obtaining high-resolution solid-state NMR spectra of quadrupolar nuclei, the inherently low sensitivity of the multiple-quantum magic-angle spinning (MQMAS) experiment has limited its application for nuclei with low receptivity or when… read more here.
Keywords: nuclei; quadrupolar nuclei; signal enhancement; investigating fam ... See more keywords
Observation of proximities between spin-1/2 and quadrupolar nuclei in solids: Improved robustness to chemical shielding using adiabatic symmetry-based recoupling.
Sign Up to like & getrecommendations! Published in 2018 at "Solid state nuclear magnetic resonance"
DOI: 10.1016/j.ssnmr.2018.07.001
Abstract: We introduce a novel heteronuclear dipolar recoupling based on the R21-1 symmetry, which uses the tanh/tan (tt) shaped pulse as a basic inversion element and is denoted R21-1(tt). Using first-order average Hamiltonian theory, we show… read more here.
Keywords: quadrupolar nuclei; spin quadrupolar; observation proximities; chemical ... See more keywords