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undergraduate thesis
Spektroskopska ispitivanja novih fluorofora temeljenih na benzazolima
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. urn:nbn:hr:149:363433
Šimić, Veronika
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

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Šimić, V. (2018). Spektroskopska ispitivanja novih fluorofora temeljenih na benzazolima (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:363433

Šimić, Veronika. "Spektroskopska ispitivanja novih fluorofora temeljenih na benzazolima." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:149:363433

Šimić, Veronika. "Spektroskopska ispitivanja novih fluorofora temeljenih na benzazolima." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:149:363433

Šimić, V. (2018). 'Spektroskopska ispitivanja novih fluorofora temeljenih na benzazolima', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 11 July 2024, https://urn.nsk.hr/urn:nbn:hr:149:363433

Šimić V. Spektroskopska ispitivanja novih fluorofora temeljenih na benzazolima [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2018 [cited 2024 July 11] Available at: https://urn.nsk.hr/urn:nbn:hr:149:363433

V. Šimić, "Spektroskopska ispitivanja novih fluorofora temeljenih na benzazolima", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:149:363433

Metadata
TitleSpektroskopska ispitivanja novih fluorofora temeljenih na benzazolima
Title (english)Spectroscopic evaluation of novel flurophores based on benzazoles
AuthorVeronika Šimić
MentorSvjetlana Krištafor (mentor)
Committee memberSvjetlana Krištafor (predsjednik povjerenstva)
Committee memberLidija Furač (član povjerenstva)
Committee memberEma Horak (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2018-09-17, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Applied Chemistry
Abstract
Kemijski senzori su uređaji koji pretvaraju kemijsku informaciju u analitički koristan signal. U novije vrijeme kemijski senzori sve više privlače pozornost znanstvenika zbog njihove široke primjene u medicine, biologiji i biokemiji. Glavni razlog tome je njihova osjetljivost, imunost na elektromagnetne smetnje, sigurnost prilikom rada i niska cijena. Cilj ovog rada je bio ispitati spektroskopska svojstva novih fluorofora koji se baziraju na benzazolima. Benzimidazoli su heterociklički spojevi aromatskog karaktera s imidazolnim prstenom kondenziranom na benzensku jezgru. Derivati benzimidazola pokazuju zanimljiva spektroskopska svojstva, osjetljivi su na promjenu pH zbog postojanja dušika koji se može protonirati, te mogu koordinirati metalne katione zbog prisutnosti dušika. 1,2,3-triazol je sve češća funkcionalna jedinica u optičkim senzorima jer, osim kao poveznica u konjugiranim π-sustavima, može imati ulogu u koordinaciji metalnih iona. U okviru ovog rada, sintetiziran je novi derivat benzimidazola koji sadrži 1,2,3-triazolni prsten, 2-(4-(p-tolil)-1H-1,2,3-triazol-1-il)-1H-benzo[d]imidazol, cikloadicijskom reakcijom iz odgovarajućih azida i alkina u prisutnosti Cu(I) kao katalizatora. Struktura spoja potvrđena je 1H i 13C NMR spektroskopijom, a UV-vidljivom apsorpcijskom i fluorescencijskom spektrofotometrijom ispitana su svojstva spoja u različitim otapalima i univerzalnim puferima u rasponu pH 2-12.
Abstract (english)
Chemical sensors are devices that convert chemical information into an analytically useful sig-nal. More recently, chemical sensors are increasingly attracted to scientists because of their wide application in medicine, biology and biochemistry. The main reason for this is their sen-sitivity, immunity to electromagnetic interference, safety at work and low price. The aim of this paper was to examine the spectroscopic properties of new benzazole based fluorophors. Benzimidazoles are heterocyclic aromatic compounds with imidazole condensed to benzene ring. Benzimidazole derivatives exhibit interesting spectroscopic properties, sensitivity to pH change due to the presence of protonated nitrogen atom, and are sensitive to metal cations due to the presence of two nitrogen atoms. 1,2,3-triazoles became common functional moiety in optical sensors, due to their ability to act as linker in conjugated π-systems and to coordinate metal ions. In this work, new benzimidazole derivative with 1,2,3-triazole ring was synthetized, 2-(4-(p-tolil)-1H-1,2,3-triazol-1-il)-1H-benzo[d]imidazole, by cycloaddition reaction from corresponding azide and alkyne using Cu(I) as catalyst. The structure was determined by means of 1H i 13C NMR, while UV-visible absorption and fluorescence spectroscopy was used to examine the changes of its spectroscopic properties in different solvents and in universal buffer solutions in pH range 2-12.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:363433
ProjectNumber: IP-2014-09-3386
Title: Dizajn i sinteza novih dušikovih heterocikličkih fluorofora i fluorescentnih nanomaterijala kao kemijskih senzora za pH i metalne ione
Title: Design and Synthesis of Novel Nitrogen-Containing Heterocyclic Fluorophores and Fluorescent Nanomaterials for pH and Metal-Ion Sensing
Acronym: iNFiNiTE–SENS
Leader: Robert Vianello
Jurisdiction: Croatia
Funder: HRZZ
Funding stream: IP
Study programmeTitle: Chemical Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
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Created on2022-05-10 12:22:12