Naslov
Synthesis and complexation properties of fluorescent phenanthridine-basesd calix[4]arene derivates

Autori
Leko, Katarina ; Usenik , Andrea ; Cindro, Nikola ; Tomišić Vladislav

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

Izvornik
Adriatic NMR Conference : Book of Abstract / Bregović, Nikola ; Namjesnik, Danijel ; Novak, Predrag ; Pičuljan, Katarina - Zagreb : Kemijski odsjek Prirodoslovno-matematičkog fakulteta Sveučilišta u Zagrebu ; Geološki odsjek Prirodoslovno-matematičkog fakulteta Sveučilišta u Zagrebu, 2018, 52-52

ISBN
978-953-6076-42-0

Skup
Adriatic NMR 2018

Mjesto i datum
Mali Ston, Hrvatska, 15.06.2018. - 17.06.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
calix[4]arenes ; phenantridine ; metal cations ; fluorescence

Sažetak
Calixarenes are macrocyclic oligomers consisted of four or more phenolic residues linked by methylene bridges in the ortho position and can be easily functionalized to give receptors for various ionic or neutral species. Calixarenes bearing fluorescent moieties can be considered as potentially very sensitive fluorimetric ion sensors due to the high sensitivity of fluorescence spectroscopy and high affinity of these macrocyclic ligands towards cations. [1-3] In the scope of this work, novel fluorescent phenathridine-based calix[4]arene derivatives L1 and L2 were designed and prepared (Figure 1) and their complexation properties towards metal cations in several solvents were investigated. Phenanthridine moities were introduced at a lower calixarene rim and served both as fluorescent probes and parts of cation-binding site. Stability constants of the corresponding complexes were determined by means of fluorimetry, UV spectrophotometry, NMR spectroscopy and isothermal titration calorimetry.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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