Perspectives in the application of residual dipolar couplings in the structure elucidation of weakly aligned small molecules
Sign Up to like & getrecommendations! Published in 2017 at "Magnetic Resonance in Chemistry"
DOI: 10.1002/mrc.4543
Abstract: This perspective article aims to review the general methodology in the application of residual dipolar couplings (RDCs) in the structure elucidation of small molecules and give the author's view on challenges for future applications. Recent… read more here.
Keywords: residual dipolar; structure elucidation; small molecules; application residual ... See more keywords
Partial alignment, residual dipolar couplings and molecular symmetry in solution NMR.
Sign Up to like & getrecommendations! Published in 2019 at "Journal of biomolecular NMR"
DOI: 10.1007/s10858-019-00256-2
Abstract: Residual dipolar couplings (RDCs) and residual anisotropic chemical shifts (RACSs) are produced by the partial alignment of solution NMR samples. RDCs and RACSs yield high-resolution structural and dynamic information on the orientation of bonds and… read more here.
Keywords: solution nmr; residual dipolar; symmetry; molecular symmetry ... See more keywords
A practical strategy for the accurate measurement of residual dipolar couplings in strongly aligned small molecules.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of magnetic resonance"
DOI: 10.1016/j.jmr.2018.04.002
Abstract: Accurate measurement of residual dipolar couplings (RDCs) requires an appropriate degree of alignment in order to optimize data quality. An overly weak alignment yields very small anisotropic data that are susceptible to measurement errors, whereas… read more here.
Keywords: residual dipolar; alignment; accurate measurement; measurement ... See more keywords
Molecular Structure Refinement Based on Residual Dipolar Couplings: A Comparison of the Molecular Rotational-Sampling Method with the Alignment-Tensor Approach
Sign Up to like & getrecommendations! Published in 2024 at "Journal of chemical information and modeling"
DOI: 10.1021/acs.jcim.4c00416
Abstract: In NMR experiments, residual dipolar couplings (RDCs) in a molecule can be measured by averaging the dipolar couplings (DCs) over the rotational motion of a molecule in an environment that induces a slight anisotropic orientation… read more here.
Keywords: orientation; molecule; orientation distribution; dipolar couplings ... See more keywords
Cyclic Peptide C5aR1 Antagonist Design Using Solution Conformational Analysis Derived from Residual Dipolar Couplings.
Sign Up to like & getrecommendations! Published in 2024 at "ACS medicinal chemistry letters"
DOI: 10.1021/acsmedchemlett.4c00316
Abstract: To gain further insight into the conformational properties of small cyclic peptides that bind to the G-protein coupled receptor C5aR1, we report here for the first time the elucidation of three peptide solution conformations using… read more here.
Keywords: residual dipolar; solution conformations; solution; dipolar couplings ... See more keywords
A Highly Versatile Enantiodifferentiating Polyglutamate Alignment Medium to Measure Residual Dipolar Couplings in Non-Polar and Polar Solvents.
Sign Up to like & getrecommendations! Published in 2025 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.5c09152
Abstract: Helical structures are ubiquitous in nature and exhibit fascinating properties. They are inherently chiral, and many rely on hydrogen bonds to stabilize their conformation. Homopolypeptides of the glutamate type form α-helical secondary structures and are… read more here.
Keywords: residual dipolar; highly versatile; versatile enantiodifferentiating; alignment medium ... See more keywords
Programmable alignment media from self-assembled oligopeptide amphiphiles for the measurement of independent sets of residual dipolar couplings in organic solvents
Sign Up to like & getrecommendations! Published in 2022 at "Chemical Science"
DOI: 10.1039/d2sc01057g
Abstract: NMR spectroscopy in anisotropic media has emerged as a powerful technique for the structural elucidation of organic molecules. Its application requires weak alignment of analytes by means of suitable alignment media. Although a number of… read more here.
Keywords: alignment media; organic solvents; residual dipolar; sets residual ... See more keywords
Residual dipolar couplings as a tool for structural analysis of ionic liquids.
Sign Up to like & getrecommendations! Published in 2023 at "Chemical communications"
DOI: 10.1039/d3cc00929g
Abstract: An acrylonitrile/dimethylacrylamide cross-linked polymer could be swollen in different imidazolium ionic liquids. Mechanical compression of the obtained polymer gels inside an NMR tube allowed the measurement of residual dipolar couplings. Conformational analysis of the 1-methyl-3-butyl-imidazolium… read more here.
Keywords: tool structural; couplings tool; ionic liquids; analysis ... See more keywords
NMR of orientationally ordered short-chain hydrocarbons
Sign Up to like & getrecommendations! Published in 2018 at "Liquid Crystals"
DOI: 10.1080/02678292.2018.1481540
Abstract: ABSTRACT The proton NMR spectra of the straight-chain hydrocarbons from methane to -hexane orientationally ordered in nematic liquid-crystal solvents are reviewed. The theory behind reorientation-vibration coupling (that explains the anisotropic splittings observed in the spectrum… read more here.
Keywords: chain hydrocarbons; orientationally ordered; ordered short; nmr orientationally ... See more keywords