Rotational isomerism of the amide units in rotaxanes based on a cyclic tetraamide and secondary ammonium ions
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DOI: 10.1039/c9qo00096h
Abstract: We describe the synthesis of [2]rotaxanes consisting of a macrocyclic tetraamide and mono- and bis-ammonium ions and their conformational isomerism. read more here.
Keywords: ammonium ions; isomerism amide; ammonium; rotational isomerism ... See more keywords
1H-NMR Karplus Analysis of Molecular Conformations of Glycerol under Different Solvent Conditions: A Consistent Rotational Isomerism in the Backbone Governed by Glycerol/Water Interactions
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DOI: 10.3390/ijms24032766
Abstract: Glycerol is a symmetrical, small biomolecule with high flexibility in molecular conformations. Using a 1H-NMR spectroscopic Karplus analysis in our way, we analyzed a rotational isomerism in the glycero backbone which generates three kinds of… read more here.
Keywords: rotational isomerism; water; karplus analysis; geometry ... See more keywords