Naslov
Fluorescent phenanthridine-based calix[4]arene derivatives: synthesis and thermodynamics of complexation reactions with metal cations

Autori
Leko, Katarina ; Usenik, Andrea ; Babić, Tea ; Modrušan, Matija ; Požar, Josip ; Tomišić, Vladislav

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

Izvornik
Adriatic NMR Conference 2021 : Book of abstracts / Bregović, Nikola ; Namjesnik, Danijel ; Novak, Predrag ; Parlov Vuković, Jelena - Zagreb : Hrvatsko kemijsko društvo, 2021, 34-34

Skup
Adriatic NMR Conference 2021

Mjesto i datum
Primošten, Hrvatska, 13.09.2021. - 15.09.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
calix[4]arene ; phenantridine ; metal cation ; fluorescence

Sažetak
Calixarenes are macrocyclic oligomers consisted of four or more phenolic residues linked by methylene groups in ortho position. Depending on their size and substituents at lower and/or upper rim, these compounds have been found to be very efficient receptors for various chemical species. Those bearing suitable binding sites as well as fluorescent moieties can be considered as very sensitive ion sensors due to the high sensitivity of fluorescence spectroscopy. In the scope of this work, two fluorescent phenanthridinebased calix[4]arene derivatives L1 and L2 (Figure 1) were designed and prepared. Their binding affinities towards alkali, alkaline earth, and transition metal cations in various organic solvents (acetonitrile, methanol, ethanol, N, N- dimethylformamide, dimethyl sulfoxide) were investigated by means of UV, fluorimetry, NMR, and isothermal titration calorimetry. The obtained results were discussed regarding the structural characteristics of the studied calixarene derivatives and solvation abilities of the solvents used.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA