Naslov
Spektroskopske karakteristike i imobilizacija fluorescentnih amino supstituiranih benzimidazo[1, 2-a]kinolina
(Spectroscopic properties and immobilisation of fluorescent amino substituted benzimidazo[1, 2-a]quinolines)

Autori
Hranjec, Marijana ; Perin, Nataša ; Horak, Ema ; Murković Steinberg, Ivana ; Babić, Darko ; Vianello, Robert

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

Izvornik
26. Hrvatski skup kemičara i kemijskih inženjera, Knjiga sažetaka / Galić, Nives ; Rogošić, Marko - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2019, 117-117

ISBN
9789536894673

Skup
26. hrvatski skup kemičara i kemijskih inženjera (26HSKIKI) ; 4. simpozij Vladimir Prelog

Mjesto i datum
Šibenik, Hrvatska, 09.04.2019. - 12.04.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
benzimidazo[1, 2-a]kinolini ; spektroskopska svojstva ; fluorescencija ; imobilizacija
(benzimidazo[1, 2-a]quinolines ; spectroscopic properties ; fluorescence ; immobilisation)

Sažetak
Recently, one of the extensively studied classes of organic fluorescent sensors is that based on benzimidazole nuclei [1]. Due to the highly conjugated planar chromophore, the benzimidazole benzannulated derivatives offer promising applications in optoelectronics, optical lasers, fluorescence probes and organic luminophores [2]. Presented amino substituted benzimidazo[1, 2-a]quinolines designed as fluorescence sensors to determine pH changes, posses also interesting spectroscopic properties. The studied benzimidazo[1, 2-a]quinolines enable internal charge transfer (ICT) interactions, causing expressed pH sensing properties. It was noticed that the type and position of amino substituent placed at the tetracyclic skeleton, strongly influenced absorption and emission. Moreover, upon acidification, the push - pull character of the ICT transition is enhanced in all aminated fluorescent dyes. Computational analysis complemented experiments by elucidating acid-base and excited-state features of investigated systems, thus aided in the determination of protonation forms present in solution and interpretation of the electronic transitions.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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