Articles | Volume 1, issue 2
Magn. Reson., 1, 237–246, 2020

Special issue: Geoffrey Bodenhausen Festschrift

Magn. Reson., 1, 237–246, 2020

Research article 14 Oct 2020

Research article | 14 Oct 2020

Surprising absence of strong homonuclear coupling at low magnetic field explored by two-field nuclear magnetic resonance spectroscopy

Ivan V. Zhukov et al.

Related authors

Exchange interaction in short-lived flavine adenine dinucleotide biradical in aqueous solution revisited by CIDNP (chemically induced dynamic nuclear polarization) and nuclear magnetic relaxation dispersion
Ivan V. Zhukov, Alexey S. Kiryutin, Mikhail S. Panov, Natalya N. Fishman, Olga B. Morozova, Nikita N. Lukzen, Konstantin L. Ivanov, Hans-Martin Vieth, Renad Z. Sagdeev, and Alexandra V. Yurkovskaya
Magn. Reson., 2, 139–148,,, 2021
Short summary

Related subject area

Field: Liquid-state NMR | Topic: Theory
Bootstrap aggregation for model selection in the model-free formalism
Timothy Crawley and Arthur G. Palmer III
Magn. Reson., 2, 251–264,,, 2021
Short summary
Approximate representations of shaped pulses using the homotopy analysis method
Timothy Crawley and Arthur G. Palmer III
Magn. Reson., 2, 175–186,,, 2021
Short summary
Detecting segmental anisotropic diffusion in disordered proteins by cross-correlated spin-relaxation
Clemens Kauffmann, Irene Ceccolini, Georg Kontaxis, and Robert Konrat
Magn. Reson. Discuss.,,, 2021
Revised manuscript accepted for MR
Short summary
Revisiting paramagnetic relaxation enhancements in slowly rotating systems: how long is the long range?
Giovanni Bellomo, Enrico Ravera, Vito Calderone, Mauro Botta, Marco Fragai, Giacomo Parigi, and Claudio Luchinat
Magn. Reson., 2, 25–31,,, 2021
Short summary

Cited articles

Appelt, S., Häsing, F. W., Sieling, U., Gordji-Nejad, A., Glöggler, S., and Blümich, B.: Paths from Weak to Strong Coupling in NMR, Phys. Rev. A, 81, 023420,, 2010. 
Blanchard, J. W. and Budker, D.: Zero- to Ultralow-Field NMR, eMagRes, 5, 1395–1409,, 2016. 
Bodenhausen, G., Freeman, R., Morris, G. A., and Turner, D. L.: Proton-Coupled Carbon-13 J Spectra in the Presence of Strong Coupling. II, J. Magn. Reson., 28, 17–28,, 1977. 
Bolik-Coulon, N., Kaderavek, P., Pelupessy, P., Dumez, J. N., Ferrage, F., and Cousin, S. F.: Theoretical and Computational Framework for the Analysis of the Relaxation Properties of Arbitrary Spin Systems. Application to High-Resolution Relaxometry, J. Magn. Reson., 313, 106718,, 2020. 
Braunschweiler, L. and Ernst, R. R.: Coherence Transfer by Isotropic Mixing – Application to Proton Correlation Spectroscopy, J. Magn. Reson., 53, 521–528,, 1983. 
Short summary
We studied spin dynamics in nuclear spin systems at low magnetic fields, where strong coupling among nuclear spins of the same kind, here 13C, is expected. Such conditions are known to be favorable for coherent polarization transfer. However, to our surprise, interactions with other nuclei, i.e., protons, lead to a breakdown of the strong coupling conditions. By using a two-field nuclear magnetic resonance approach, we can manipulate low field-spin dynamics and reintroduce strong coupling.