Mathematica 9 is now available

Wolfram Library Archive


Courseware Demos MathSource Technical Notes
All Collections Articles Books Conference Proceedings
Title

A way of visualizing NMR experiments on quadrupolar nuclei
Authors

David J. Philp
Organization: School of Molecular and Microbial Biosciences, University of Sydney
Philip W. Kuchek
Organization: School of Molecular and Microbial Biosciences, University of Sydney
Journal / Anthology

Concepts in Magnetic Resonance Part A
Year: 2005
Volume: 25a
Issue: 1
Page range: 40-52
Description

A graphical representation of the spin states of quadrupolar nuclei in NMR experiments is described. The spherical harmonics represent the irreducible spherical tensor operator basis set, and therefore any density matrix can be illustrated with computer graphics by converting it to a sum of spherical harmonics. Using a multiple quantum-filtered experiment as an example, we demonstrate how the phase and flip angle of RF pulses can be used to create multiple quantum coherences, to suppress the creation of particular coherences, and to select coherences by exploiting their symmetry. This visual approach complements the algebraic description of pulse sequences, providing an intuitive way of designing and analyzing pulse sequences.
Subject

*Science > Physics > Nuclear and Particle Physics