Excitation of singlet-triplet coherences in pairs of nearly-equivalent spins

Physical Chemistry Chemical Physics : PCCP
Kirill F SheberstovKonstantin L Ivanov

Abstract

We present approaches for an efficient excitation of singlet-triplet coherences in pairs of nearly-equivalent spins. Standard Nuclear Magnetic Resonance (NMR) pulse sequences do not excite these coherences at all or with very low efficiency. The single quantum singlet-triplet coherences, here termed the outer singlet-triplet coherences, correspond to lines of low intensity in the NMR spectrum of a strongly-coupled spin pair (they are sometimes referred to as "forbidden transitions"), whereas the zero-quantum coherences, here termed the inner singlet-triplet coherences, do not have a direct spectral manifestation. In the present study, we investigated singlet-triplet coherences in a pair of nearly-equivalent carbon spins of the 13C-isotopomer of a specially designed naphthalene derivative with optimized relaxation properties. We propose and compare several techniques to drive the singlet-triplet coherence in strongly coupled spin pairs. First, we study different methods for efficient excitation of the outer singlet-triplet coherences. The achieved conversion efficiency of magnetization to the coherences of interest is close to the theoretically allowed maximum. Second, we propose methods to convert the outer coherences into the ...Continue Reading

References

May 20, 2004·Journal of the American Chemical Society·Marina Carravetta, Malcolm H Levitt
Jun 1, 2004·Physical Review Letters·Marina CarravettaMalcolm H Levitt
Jan 11, 2007·Journal of the American Chemical Society·Riddhiman SarkarGeoffrey Bodenhausen
May 16, 2009·Journal of the American Chemical Society·Puneet AhujaGeoffrey Bodenhausen
Oct 2, 2009·Physical Review Letters·Giuseppe PileioMalcolm H Levitt
Oct 21, 2009·Proceedings of the National Academy of Sciences of the United States of America·P R VasosG Bodenhausen
Apr 7, 2010·Physical Review Letters·Riddhiman SarkarGeoffrey Bodenhausen
Jul 10, 2010·Journal of Magnetic Resonance·Aurélien BornetGeoffrey Bodenhausen
Oct 5, 2010·Chemical Communications : Chem Comm·Puneet AhujaGeoffrey Bodenhausen
Oct 6, 2010·Progress in Nuclear Magnetic Resonance Spectroscopy·Michal LeskesShimon Vega
Feb 15, 2011·Physical Chemistry Chemical Physics : PCCP·Michael C D Tayler, Malcolm H Levitt
May 24, 2011·Progress in Nuclear Magnetic Resonance Spectroscopy·Riddhiman SarkarGeoffrey Bodenhausen
Aug 10, 2011·Journal of the American Chemical Society·Aurélien BornetGeoffrey Bodenhausen
Sep 2, 2011·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Aurélien BornetPaul R Vasos
Apr 19, 2012·Journal of the American Chemical Society·Michael C D TaylerGiuseppe Pileio
Jun 13, 2012·Journal of the American Chemical Society·Nicola SalviGeoffrey Bodenhausen
Oct 17, 2012·Journal of the American Chemical Society·Giuseppe PileioMalcolm H Levitt
Mar 16, 2013·Journal of the American Chemical Society·Giuseppe PileioMalcolm H Levitt
Jul 27, 2014·Journal of Magnetic Resonance·Jean-Nicolas DumezGiuseppe Pileio
Jan 30, 2015·Angewandte Chemie·Gabriele StevanatoMalcolm H Levitt
Oct 16, 2015·Journal of Magnetic Resonance·Malcolm H Levitt
Mar 12, 2017·Progress in Nuclear Magnetic Resonance Spectroscopy·Giuseppe Pileio
Aug 16, 2017·Magnetic Resonance in Chemistry : MRC·Christian Bengs, Malcolm H Levitt
Sep 20, 2017·Journal of Magnetic Resonance·B KharkovA Jerschow
Dec 7, 2017·Magnetic Resonance in Chemistry : MRC·D A CheshkovV A Chertkov
Dec 13, 2017·Magnetic Resonance in Chemistry : MRC·Alexey S KiryutinKonstantin L Ivanov
Feb 27, 2018·Applied Magnetic Resonance·Kirill F SheberstovAlexandra V Yurkovskaya
Apr 7, 2018·Physical Chemistry Chemical Physics : PCCP·Ivan V ZhukovKonstantin L Ivanov

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Citations

May 3, 2020·The Journal of Chemical Physics·Bogdan A RodinMalcolm H Levitt
Dec 23, 2019·The Journal of Chemical Physics·Bogdan A RodinKonstantin L Ivanov
Dec 29, 2019·Scientific Reports·Kirill F SheberstovAlexandra V Yurkovskaya
Feb 27, 2021·Progress in Nuclear Magnetic Resonance Spectroscopy·Florin TeleanuPaul R Vasos
May 2, 2021·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Kirill F SheberstovAlexandra V Yurkovskaya

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Methods Mentioned

BETA
nuclear magnetic resonance
NMR
the
irradiate

Software Mentioned

SpinDynamica
TopSpin
Shape
- tool
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