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Updated: Jul 18, 2026

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy
Published on: October 9, 2020
On the application of magic echo cycles for quadrupolar echo spectroscopy of spin-1 nuclei
E S Mananga1, R Roopchand, Y S Rumala
1York College, The City University of New York, Department of Natural Sciences, Physics, 94-20 Guy R. Brewer Boulevard, Jamaica, NY 11451, USA.
Abstract:
Magic echo cycles are introduced for performing quadrupolar echo spectroscopy of spin-1 nuclei. An analysis is performed via average Hamiltonian theory showing that the evolution under chemical shift or static field inhomogeneity can be refocused simultaneously with the quadrupolar interaction using these cycles. Due to the higher convergence in the Magnus expansion, with sufficient RF power, magic echo based quadrupolar echo spectroscopy outperforms the conventional two pulse quadrupolar echo in signal to noise. Experiments highlighting a signal to noise enhancement over the entire bandwidth of the quadrupolar pattern of a powdered sample of deuterated polyethelene are shown.
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