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A study of anion binding behaviour of 1,3-alternate thiacalix[4]arene-based receptors bearing urea moieties
- Source :
- New Journal of Chemistry. 40:9245-9251
- Publication Year :
- 2016
- Publisher :
- Royal Society of Chemistry (RSC), 2016.
-
Abstract
- Three novel thiacalix[4]arene receptors 4a–c each with a 1,3-alternate conformation and possessing two urea moieties linking various phenyl groups substituted with either para electron-donating or -withdrawing groups have been synthesized. The binding properties of these receptors were investigated by means of 1H NMR spectroscopy and UV-vis absorption titration experiments using various anions. The structures and complexation energies were also studied by density functional theory (DFT) methods. The results suggested that receptor 4c, which possesses two p-(trifluoromethyl)phenyl ureido moieties, can complex most efficiently in the urea cavity and exhibits high selectivity towards F− and AcO− ions.
- Subjects :
- Trifluoromethyl
010405 organic chemistry
Stereochemistry
General Chemistry
010402 general chemistry
01 natural sciences
Medicinal chemistry
Catalysis
0104 chemical sciences
Ion
chemistry.chemical_compound
chemistry
Materials Chemistry
Urea
Density functional theory
Titration
Absorption (chemistry)
Receptor
Anion binding
Subjects
Details
- ISSN :
- 13699261 and 11440546
- Volume :
- 40
- Database :
- OpenAIRE
- Journal :
- New Journal of Chemistry
- Accession number :
- edsair.doi...........f55f14bbae940882ce8015d8ca9c18bc