Deuterium quadrupole echo NMR spectroscopy. I. Effects of chemical exchange during single and composite pulses

Thomas M. Barbara, Michael S. Greenfield, Robert L. Vold, Regitze R. Vold

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Abstract

The effects of chemical exchange during rf pulses on deuterium quadrupole echo spectra have been evaluated numerically for single pulses as well as for Levitt-Suter-Emst composite pulses. In principle, the inclusion of exchange effects during pulses of finite length requires lengthy calculations of the evolution of the full density matrix. Fortunately, exchanging lineshapes can be simulated accurately using only the smaller single-quantum transition subset of spin-density-matrix elements provided that the lengths of the pulse-echo intervals are properly adjusted.

Original languageEnglish (US)
Pages (from-to)311-330
Number of pages20
JournalJournal of Magnetic Resonance (1969)
Volume69
Issue number2
DOIs
StatePublished - Sep 1986

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