Naslov
Coordination chemistry of calix[4]arenes: thermodynamic and structural points of view

Autori
Tomišić, Vladislav

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

Izvornik
Adriatic NMR Conference 2017 : Book of Abstracts / Namjesnik, Danijel ; Pičuljan, Katarina ; Bregović, Nikola ; Novak, Predrag - Zagreb : Prirodoslovno-matematički fakultet Sveučilišta u Zagrebu, 2017, 19-19

ISBN
978-953-6076-41-3

Skup
Adriatic NMR Conference

Mjesto i datum
Mali Ston, Hrvatska, 16.06.2017. - 18.06.2017

Vrsta sudjelovanja
Plenarno

Vrsta recenzije
Nije recenziran

Ključne riječi
calixarenes ; complexation ; solvation ; hydrogen bonding ; thermodynamics

Sažetak
Calixarenes are macrocyclic oligomers which consist of four or more phenolic residues linked by methylene group in the ortho position. Many calixarene derivatives are known to be very efficient, and, in some cases, selective binders of ions and neutral molecules. In this lecture the comprehensive investigation of several calix[4]arene complexation reactions will be described. The thermodynamic data (complex stability constants and derived reaction Gibbs energies, reaction enthalpies and entropies) determined by means of UV and NMR spectroscopies, fluorimetry, potentiometry, conductometry, and microcalorimetry will be correlated with structural results obtained by X- ray crystallography, NMR, and computational methods (DFT and molecular dynamics). The intra- and intermolecular hydrogen-bonding and solvent effects (especially specific solvent-solute interactions) on the equilibria of binding reactions will be particularly addressed. The results of the above-mentioned studies have clearly indicated how remarkable and complex the influence of the solvent on the ion-hosting abilities of the calixarene derivatives, and macrocycles in general, can be. They have also suggested that integrated and comprehensive experimental and computational investigations can provide a rather detailed insight into the ligand properties and reactivities, i.e. the factors governing the complexation processes. This can serve as a basis for targeted design of efficient and selective supramolecular receptors.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA