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Hydrophobic interactions in the formation of a complex between a polycationic water-soluble oxacalix[4]arene and a neutral aromatic guest
- Publication Year :
- 2016
-
Abstract
- Polycationic oxacalix[4]arene 1·4HCl was found to be able to recognise, in water, the neutral π-rich aromatic guest 2,7-dihydroxynaphthalene, despite earlier studies indicating that the binding cleft of the oxacalixarene is π rich in nature. 1H NMR titrations at different pH values demonstrate that the tricationic receptor 1·3H+ displays the highest affinity towards DHN. According to a combination of NMR data and semiempirical (PM6) calculations, hydrophobic interactions play a prominent role in the formation of the complex.
- Subjects :
- chemistry.chemical_classification
010405 organic chemistry
Chemistry
Polycyclic aromatic hydrocarbon
General Chemistry
heteroatom-bridged calixarene
hydrophobic interactions
Oxacalix[4]arene
polycation
polycyclic aromatic hydrocarbon
Chemistry (all)
010402 general chemistry
01 natural sciences
Nmr data
0104 chemical sciences
Hydrophobic effect
Water soluble
Polymer chemistry
Proton NMR
Organic chemistry
Titration
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....dc052ef8f4e2f3851166f2d8987f6522