Naslov
Chiral bis(tyrosinol) and bis(p-hydroxyphenylglycinol) oxalamide gelators. influence of aromatic groups and hydrogen bonding on gelation properties

Autori
Makarević, Janja ; Jokić, Milan ; Raza, Zlata ; Čaplar, Vesna ; Katalenić, Darinka ; Štefanić, Zoran ; Kojić-Prodić, Biserka ; Žinić, Mladen

Izvornik
Croatica chemica acta (0011-1643) 77 (2004), 1-2; 403-414

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
hydrogels; low molecular weight organogelators; self-assembly; oxalamide; hydrogen bonding; supramolecular chemistry

Sažetak
Enantiomerically pure R, R-bis(4-hydroxyphenylglycinol) oxalamides 3 and S, S-bis(tyrosinol) oxalamides 4 were prepared and tested for their gelling properties toward organic solvents water and aqueous mixtures with polar organic solvents. It was found that oxalamide compounds with aryl substituted phenolic hydroxy groups are efficient organogelators of highly polar solvent systems while the derivatives with free phenolic hydroxy groups tend to crystallize. The revealed different behaviour is explained on the basis of specific hydrogen bonding motifs found in the crystal structures.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA