The possible tautomerism of the potential rotary switch 2-(2-(2-Hydroxy-4-nitrophenyl)hydrazono)-1-phenylbutane-1,3-dione
Sign Up to like & getrecommendations! Published in 2017 at "Dyes and Pigments"
DOI: 10.1016/j.dyepig.2017.05.021
Abstract: Abstract The title compound is potentially tautomeric and its tautomerism was studied by means of molecular spectroscopy (1H and 13C NMR and UV–Vis) in DMSO as well as by quantum chemical calculations (M06-2X/TZVP). The detailed… read more here.
Keywords: switch hydroxy; tautomerism; tautomerism potential; rotary switch ... See more keywords
Experimental and theoretical studies on isatin-Schiff bases and their copper(II)-complexes: Syntheses, spectroscopy, tautomerism, redox potentials, EPR, PXRD and DFT/TDDFT
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Molecular Structure"
DOI: 10.1016/j.molstruc.2019.127207
Abstract: Abstract The isatin-Schiff bases 3-(o/p-tolylimino)indolin-2-one (HL1 and HL2) react with the copper(II) acetate or nitrate to give the bis[3-(o/p-tolylimino)indole-2-olato-κ2N,O]copper(II) (1 and 2) via lactam (L)- to enol (E)-tautomerism in solution. IR spectra show solely the… read more here.
Keywords: schiff bases; copper complexes; tautomerism; copper ... See more keywords
Impact of A2V Mutation and Histidine Tautomerism on Aβ42 Monomer Structures from Atomistic Simulations
Sign Up to like & getrecommendations! Published in 2020 at "Journal of chemical information and modeling"
DOI: 10.1021/acs.jcim.0c00267
Abstract: Self-assembly of amyloid-β (Aβ) peptides into senile plaques in the brain is a hallmark of Alzheimer's disease (AD) pathology. Mutation and histidine tautomerism are considered intrinsic origins in accumulation of Aβ. As a first step… read more here.
Keywords: tautomerism; impact a2v; histidine tautomerism; mutation histidine ... See more keywords
Aromaticity and tautomerism of a 4n π electron dihydrohexaazapentacene
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DOI: 10.1039/c9qo01285k
Abstract: Tautomerism is an interesting phenomenon that allows different properties to coexist in the same molecule. However, the understanding of tautomerism of large antiaromatic skeletons is very limited. We report herein the intriguing tautomerism behaviors of… read more here.
Keywords: tautomerism; aromaticity tautomerism; protonation; spectroscopy ... See more keywords
Double Proton Tautomerism via Intra- or Intermolecular Pathways? The Case of Tetramethyl Reductic Acid Studied by Dynamic NMR: Hydrogen Bond Association, Solvent and Kinetic H/D Isotope Effects
Sign Up to like & getrecommendations! Published in 2021 at "Molecules"
DOI: 10.3390/molecules26144373
Abstract: Using dynamic liquid-state NMR spectroscopy a degenerate double proton tautomerism was detected in tetramethyl reductic acid (TMRA) dissolved in toluene-d8 and in CD2Cl2. Similar to vitamin C, TMRA belongs to the class of reductones of… read more here.
Keywords: double proton; hydrogen; tautomerism; tetramethyl reductic ... See more keywords