crta
Hrvatska znanstvena Sekcija img
bibliografija
3 gif
 Naslovna
 O projektu
 FAQ
 Kontakt
4 gif
Pregledavanje radova
Jednostavno pretraživanje
Napredno pretraživanje
Skupni podaci
Upis novih radova
Upute
Ispravci prijavljenih radova
Ostale bibliografije
Slični projekti
 Bibliografske baze podataka

Pregled bibliografske jedinice broj: 208536

Časopis

Autori: Miljanić, Snežana; Frkanec, Leo; Meić, Zlatko; Žinić, Mladen
Naslov: Gelation Ability of Novel Oxalamide-based Derivatives Bearing a Stilbene as a Photo-responsive Unit
Izvornik: European journal of organic chemistry (1434-193X) 2006 (2006), 5; 1323-1334
Vrsta rada: članak
Ključne riječi: Gelation; Isomers; Oxalamide; Self-assembly; Stilbene
Sažetak:
Oxalamide-based derivatives containing one or two oxalyl amide moieties coupled to 4 or 4, 4’ positions of cis- and trans-stilbene were synthesized. In order to modulate the solvent gelation tendencies, a series of derivatives with modified terminal functions were prepared. The trans-stilbene dioxalamide-based derivatives were sparingly soluble or insoluble in water and in organic solvents, whereas the trans-stilbene monooxalamide-based derivatives were soluble in most organic solvents. Incorporation of a C12 alkyl chain in the structure of the latter compounds resulted in a decreased solubility but in an increased gelation tendency of the substances. The ethyl ester oxalamide-based derivative trans-3a and the amino acid oxalamide-based derivative trans-3e acted as efficient gelators of various organic solvents. In contrast, cis-3a showed a poor gelation ability or none at all, owing to its good solubility. Considering the difference in gelation abilities of the compounds trans-3a and cis-3a and the photo-responsive conformational changes of the stilbene part of the molecule, a controlled gelation by light was achieved. FT-IR and 1H NMR spectroscopic measurements supported the view that the hydrogen bonding between oxalamide fragments played an important role in gel formation.
Projekt / tema: 0119641, 0098053
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Kemija
URL Internet adrese: http://www3.interscience.wiley.com/cgi-bin/abstract/112217621/ABSTRACT
URL cjelovitog teksta:
Google Scholar: Gelation Ability of Novel Oxalamide-based Derivatives Bearing a Stilbene as a Photo-responsive Unit



  Verzija za printanje   za tiskati


upomoc
foot_4