Now showing items 1-10 of 452
Detection of methylation, acetylation and glycosylation of protein residues by monitoring 13C chemical-shift changes: A quantum-chemical study
Post-translational modifications of proteins expand the diversity of the proteome by several orders of magnitude and have a profound effect on several biological processes. Their detection by experimental methods is not ...
Configuration of stilbene derivatives by (1)H NMR and theoretical calculation of chemical shifts
(ELSEVIER SCIENCE BV, 2010)
The direct E/Z configuration assignment of tri- and tetra-substituted stilbenes (and other analogous olefins) when only one of the isomers is available is a quite challenging task. Sometimes, a chemical transformation or ...
19F chemical shifts, coupling constants and conformational preferences in monosubstituted perfluoroparacyclophanes
(John Wiley & Sons Ltd, 2011-02)
In the process of studying the chemistry of perfluoro[2.2]paracyclophanes (PFPCs), a novel class of compounds, it became necessary to identify some disubstituted products. To achieve this goal, we characterize in this work ...
PROTON-RESONANCE SPECTRA AND SUBSTITUENT-INDUCED CHEMICAL-SHIFTS OF 3-HALOCAMPHORS
(John Wiley & Sons LtdW SussexInglaterra, 1994)
PRINCIPAL COMPONENT ANALYSIS OF THE C-13 NMR SHIFTS OF NORBORNYL DERIVATIVES .2. TETRACYCLIC DODECANE DERIVATIVES
(John Wiley & Sons LtdW SussexInglaterra, 1993)
Combined (13)C NMR and DFT/GIAO studies of the polyketides Aurasperone A and Fonsecinone A
Structural characterization by NMR spectroscopy and DFT calculations was performed for two dimeric naptho-gamma-pyrones, the polyketides Aurasperone A and Fonsecinone A. Experimental data ((13)C NMR chemical shifts and ...
Substituent effects in the C-13 NMR chemical shifts of alpha-mono-substituted acetonitriles
(Pergamon-elsevier Science LtdOxfordInglaterra, 2007)
Ontogenetic habitat shift of an herbivorous crab: a chemically mediated defense mechanism?
(UNIV VALPARAISO, 2011)
BEHAVIOR OF [2.2]PARACYCLOPHANE IN MAGNETIC FIELDS: A SURVEY OF THE MAGNETIC RESPONSE PROPERTIES FROM CHEMICAL SHIFT TENSOR MAPS
(ELSEVIER SCIENCE PUBLISHERS B.V., 2011)