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Pregled bibliografske jedinice broj: 943873

Zbornik radova

Autori: Cindro, Nikola; Požar, Josip; Barišić, Dajana; Bregović, Nikola; Pičuljan, Katarina; Tomaš, Renato; Frkanec, Leo; Tomišić, Vladislav
Naslov: Synthesis and complexation properties of novel glycoconjugated calix[4]arenes
Izvornik:
Skup: Adriatic NMR
Mjesto i datum: Mali ston, Hrvatska, 15-17. 6. 2018.
Ključne riječi: calixarene ; complexation ; glycoconjugate
Sažetak:
Calixarenes are a class of supramolecular cavitands that can be easily functionalized to give receptors for ionic and neutral species. Structural evolution of these compounds has led to more selective receptors with improved physico-chemical properties. Most of the synthesized calixarene ionic receptors are not sufficiently soluble in water which makes their use quite limited [1]. Water-soluble calixarenes usually own this property to the introduced easily-ionized sulfonic groups. In the scope of this work novel neutral and water- soluble ligands 1–3 (Figure 1) were designed and prepared, and their complexation with alkali-metal cations was investigated. Glucose was embedded in the structure as hydrophilic domain whereas secondary and tertiary amides served as cation-binding sites. The latter motifs were used since the calixarene derivatives comprising such groups were previously proven to form highly stable complexes [2]. Complexation reactions with alkali-metal cations were studied in water, methanol, and formamide thus giving insight into the solvation as well as intra- and intermolecular hydrogen bonds effects. Several techniques were used, such as UV spectrophotometry, isothermal titration calorimetry and NMR spectroscopy.
Vrsta sudjelovanja: Pozvano
Vrsta prezentacije u zborniku: Nije objavljen
Vrsta recenzije: Međunarodna recenzija
Projekt / tema: HRZZ-IP-2014-09-7309
Izvorni jezik: ENG
Kategorija: Znanstveni
Znanstvena područja:
Kemija
Upisao u CROSBI: Nikola Cindro (ncindro@chem.pmf.hr:Nikola.Cindro@chem.pmf.hr), 20. Lip. 2018. u 09:19 sati



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