Naslov
Thermodynamic and structural studies of complexation reactions of phenanthridine-based calix[4]arene derivative with alkaline earth metal cations

Autori
Babić, Tea ; Leko, Katarina ; Usenik, Andrea ; Modrušan, Matija ; Jakupec, Nikola ; Uran, Erik ; Tomišić, Vladislav

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
27th Croatian Meeting of Chemists and Chemical Engineers and 5th Symposium Vladimir Prelog : Book of Abstracts / Marković, Dean ; Meštrović, Ernest ; Namjesnik, Danijel ; Tomašić, Vesna - Zagreb : Hrvatsko kemijsko društvo, 2021, 276-276

Skup
27. hrvatski skup kemičara i kemijskih inženjera (27HSKIKI)

Mjesto i datum
Veli Lošinj, Hrvatska, 05.10.2021. - 08.10.2021

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
calix[4]arene ; calorimetry ; fluorescence ; NMR ; phenanthridine ; thermodynamics ; UV

Sažetak
Calixarenes are macrocyclic compounds comprised of phenolic units ortho-linked by methylene bridges. Depending on their size and substituents at upper or lower rim, these ligands have been found to be suitable receptors for various ionic and/or neutral species. Calixarenes bearing suitable binding sites as well as fluorescent moieties (e. g. naphthalene, anthracene, pyrene, phenanthridine) have been recognized as highly sensitive ion sensors, which can be attributed to the prominent sensitivity of fluorescence spectroscopy. In this work the binding affinities of fluorescent calix[4]arene derivatives L1 and L2 towards transition metal cations in acetonitrile were investigated by means of UV, fluorescence, and NMR spectroscopies, as well as isothermal titration calorimetry. The obtained results were discussed regarding the hosts and guests structural properties.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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