Proceedings of the National Academy of Sciences of the United States of America (2012). Volume: 109, Issue: 31. Pages: 12393-7. Micah P Ledbetter, Giacomo Saielli, Alessandro Bagno, Nhan Tran, Michael V Romalis et al.
Scalar couplings between covalently bound nuclear spins are a ubiquitous feature in nuclear magnetic resonance (NMR) experiments, imparting valuable information to NMR spectra regarding molecular structure and conformation. Such couplings arise due to a second-order hyperfine interaction, and, in principle, the same mechanism should lead to scalar couplings between nuclear spins in unbound van der Waals complexes. Here, we report the first observation of scalar couplings between nuclei in van der Waals complexes. Our measurements are performed in a solution of hyperpolarized (129)Xe and pentane, using superconducting quantum interference devices to detect NMR in 10 mG fields, and are in good agreement with calculations based on density functional theory. van der Waals forces play an important role in many physical phenomena. The techniques presented here may provide a new method for probing such interactions.
The Observation and Dynamics of 1H NMR Spin Noise in Methanol
From The DNP-NMR Blog:
The Observation and Dynamics of 1H NMR Spin Noise in Methanol
Jurkiewicz, A., The Observation and Dynamics of 1H NMR Spin Noise in Methanol. Appl. Magn. Reson., 2013: p. 1-18.
http://dx.doi.org/10.1007/s00723-013-0473-7
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09-11-2013 09:15 PM
Lecture 10. 13C NMR Chemical Shifts. Chemical Equivalence and Spin-Spin Coupling.
Lecture 10. 13C NMR Chemical Shifts. Chemical Equivalence and Spin-Spin Coupling.
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Lecture 10. 13C NMR Chemical Shifts. Chemical Equivalence and Spin-Spin Coupling.
This video is part of a 28-lecture graduate-level course titled "Organic Spectroscopy" taught at UC Irvine by Professor James S. Nowick. The course covers in...
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NMR educational videos
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03-07-2013 05:38 AM
[NMR paper] Electron Spin Density on the Axial His Ligand of High-Spin and Low-Spin Nitrophorin 2 Probed by Heteronuclear NMR Spectroscopy.
Electron Spin Density on the Axial His Ligand of High-Spin and Low-Spin Nitrophorin 2 Probed by Heteronuclear NMR Spectroscopy.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--pubs.acs.org-images-pubmed-acspubs.jpg Related Articles Electron Spin Density on the Axial His Ligand of High-Spin and Low-Spin Nitrophorin 2 Probed by Heteronuclear NMR Spectroscopy.
Inorg Chem. 2013 Jan 17;
Authors: Abriata LA, Zaballa ME, Berry RE, Yang F, Zhang H, Walker FA, Vila AJ
Abstract
The electronic structure of heme proteins is exquisitely tuned...
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Journal club
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02-03-2013 10:19 AM
[NMR paper] Observation of scalar nuclear spin-spin coupling in van der Waals complexes.
From Mendeley Biomolecular NMR group:
Observation of scalar nuclear spin-spin coupling in van der Waals complexes.
Proceedings of the National Academy of Sciences of the United States of America (2012). Volume: 109, Issue: 31. Pages: 12393-7. Micah P Ledbetter, Giacomo Saielli, Alessandro Bagno, Nhan Tran, Michael V Romalis et al.
Scalar couplings between covalently bound nuclear spins are a ubiquitous feature in nuclear magnetic resonance (NMR) experiments, imparting valuable information to NMR spectra regarding molecular structure and conformation. Such couplings arise due to a...
nmrlearner
Journal club
0
11-22-2012 11:49 AM
[NMR paper] Observation of scalar nuclear spin-spin coupling in van der Waals complexes.
From Mendeley Biomolecular NMR group:
Observation of scalar nuclear spin-spin coupling in van der Waals complexes.
Proceedings of the National Academy of Sciences of the United States of America (2012). Volume: 109, Issue: 31. Pages: 12393-7. Micah P Ledbetter, Giacomo Saielli, Alessandro Bagno, Nhan Tran, Michael V Romalis et al.
Scalar couplings between covalently bound nuclear spins are a ubiquitous feature in nuclear magnetic resonance (NMR) experiments, imparting valuable information to NMR spectra regarding molecular structure and conformation. Such couplings arise due to a...
nmrlearner
Journal club
0
10-29-2012 12:57 AM
Computational Study andMolecular Orbital Analysisof NMR Shielding, Spin–Spin Coupling, and Electric Field Gradientsof Azido Platinum Complexes
Computational Study andMolecular Orbital Analysisof NMR Shielding, Spin–Spin Coupling, and Electric Field Gradientsof Azido Platinum Complexes
Kiplangat Sutter and Jochen Autschbach
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja3040762/aop/images/medium/ja-2012-040762_0008.gif
Journal of the American Chemical Society
DOI: 10.1021/ja3040762
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA
http://feeds.feedburner.com/~r/acs/jacsat/~4/XTeiJ4ddvO4
[NMR paper] Investigation of the NMR spin-spin coupling constants across the hydrogen bonds in ub
Investigation of the NMR spin-spin coupling constants across the hydrogen bonds in ubiquitin: the nature of the hydrogen bond as reflected by the coupling mechanism.
Related Articles Investigation of the NMR spin-spin coupling constants across the hydrogen bonds in ubiquitin: the nature of the hydrogen bond as reflected by the coupling mechanism.
J Am Chem Soc. 2004 Apr 28;126(16):5093-107
Authors: Tuttle T, Kraka E, Wu A, Cremer D
The indirect scalar NMR spin-spin coupling constants across the H-bonds of the protein ubiquitin were calculated,...
Observation of scalar nuclear spin-spin coupling in van der Waals complexes.
Linear Mode
