Native Quercetin as a Chloride Receptor in an Organic Solvent.
Mohamed Lamin Abdi BellauOlga BortoliniGiancarlo FantinMarco FogagnoloDaniele RagnoIgnacio DelsoPedro MerinoPublished in: Molecules (Basel, Switzerland) (2018)
The binding properties of quercetin toward chloride anions were investigated by means of ¹H-NMR, 13C-NMR, and electrospray ionization mass spectrometry (ESI-MS) measurements, as well as computational calculations. The results indicate that quercetin behaves primarily as a ditopic receptor with the binding site of the B ring that exhibits stronger chloride affinity compared to the A ring. However, these sites are stronger receptors than those of catechol and resorcinol because of their conjugation with the carbonyl group located on the C ring. The 1:1 and 1:2 complexation of this flavonoid with Cl- was also supported by ESI mass spectrometry.
Keyphrases
- mass spectrometry
- ms ms
- high resolution
- capillary electrophoresis
- liquid chromatography
- magnetic resonance
- gas chromatography
- ionic liquid
- high performance liquid chromatography
- solid state
- binding protein
- molecular dynamics
- density functional theory
- molecular dynamics simulations
- multiple sclerosis
- simultaneous determination
- water soluble
- high speed