Exploring the limits of polarization transfer efficiency in homonuclear three spin systems

Journal of Magnetic Resonance
Jorge L NevesSteffen J Glaser

Abstract

The limits of polarization transfer efficiency are explored for systems consisting of three isotropically coupled spins 1/2 in the absence of relaxation. An idealized free evolution and control Hamiltonian is studied, which provides an upper limit of transfer efficiency (in terms of transfer amplitude and transfer time) for realistic homonuclear spin systems with arbitrary Heisenberg-type coupling constants J12, J13, and J23. It is shown that optimal control based pulse sequences have significantly improved transfer efficiencies compared to conventional transfer schemes. An experimental demonstration of optimal polarization transfer is given for the case of the carbon spin system of fully 13C labelled alanine at 62.5 MHz Larmor frequency.

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Citations

Feb 13, 2008·The Journal of Chemical Physics·Dieter Suter, T S Mahesh
Sep 18, 2012·Journal of Magnetic Resonance·Franz Schilling, Steffen J Glaser
May 15, 2012·Journal of Magnetic Resonance·Philipp E SpindlerThomas F Prisner
Mar 20, 2012·Journal of Magnetic Resonance·Thomas E SkinnerSteffen J Glaser
Oct 7, 2011·Journal of Magnetic Resonance·Martin A JanichSteffen J Glaser
Mar 9, 2010·Journal of Magnetic Resonance·Meike RothKerstin Münnemann
Aug 22, 2009·Journal of Magnetic Resonance·Jorge L NevesSteffen J Glaser
Jan 3, 2009·Journal of Magnetic Resonance·Zdenek TosnerNiels Chr Nielsen
Sep 28, 2010·Journal of Magnetic Resonance·Michael Braun, Steffen J Glaser
May 2, 2016·The Journal of Chemical Physics·S S KöcherS J Glaser
Nov 23, 2006·The Journal of Chemical Physics·Zdenek TosnerNiels Chr Nielsen
Mar 23, 2017·Magnetic Resonance in Chemistry : MRC·Martin R M KoosBurkhard Luy
May 8, 2010·Physical Chemistry Chemical Physics : PCCP·Nikolas Pomplun, Steffen J Glaser

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