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master's thesis
Određivanje molekulske i kristalne građe Schiffovih baza s kinazolinom
2023. urn:nbn:hr:182:619030
Poplašen, Antonija
Josip Juraj Strossmayer University of Osijek
Department of Chemistry

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Poplašen, A. (2023). Određivanje molekulske i kristalne građe Schiffovih baza s kinazolinom (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry. Retrieved from https://urn.nsk.hr/urn:nbn:hr:182:619030

Poplašen, Antonija. "Određivanje molekulske i kristalne građe Schiffovih baza s kinazolinom." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2023. https://urn.nsk.hr/urn:nbn:hr:182:619030

Poplašen, Antonija. "Određivanje molekulske i kristalne građe Schiffovih baza s kinazolinom." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, 2023. https://urn.nsk.hr/urn:nbn:hr:182:619030

Poplašen, A. (2023). 'Određivanje molekulske i kristalne građe Schiffovih baza s kinazolinom', Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, accessed 10 December 2024, https://urn.nsk.hr/urn:nbn:hr:182:619030

Poplašen A. Određivanje molekulske i kristalne građe Schiffovih baza s kinazolinom [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of Chemistry; 2023 [cited 2024 December 10] Available at: https://urn.nsk.hr/urn:nbn:hr:182:619030

A. Poplašen, "Određivanje molekulske i kristalne građe Schiffovih baza s kinazolinom", Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of Chemistry, Osijek, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:182:619030

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Metadata
TitleOdređivanje molekulske i kristalne građe Schiffovih baza s kinazolinom
Title (english)Determination of molecular and crystal structure of Schiff bases with quinazoline
AuthorAntonija Poplašen
MentorTomislav Balić (mentor)
MentorMaja Molnar (mentor)
MBZ: 299335
Committee memberTomislav Balić (član povjerenstva)
Committee memberElvira Kovač-Andrić (predsjednik povjerenstva)
Committee memberMaja Molnar (član povjerenstva)
MBZ: 299335
GranterJosip Juraj Strossmayer University of Osijek
Department of Chemistry
Osijek
Defense date and country2023-02-22, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Supstituirani imin, dušični analog ketona ili aldehida gdje je karbonilna (C=O) skupina nadomještena iminskom (C=N) skupinom, dvostrukom vezom ugljika i dušika, naziva se Schiffova baza. Reakcija gdje se aminobenzojeve kiseline i dialdehidi mogu upotrebljavati kao reaktanti, reverzibilna je reakcija te se naziva sinteza Schiffove baze. Dva primarna faktora nadziru efikasnost navedene reakcije te imaju značajan učinak na iskorištenje. Neophodni su blago kiseli uvjeti pri čemu može doći do nestanka vode što znači da koncentracija kiseline ne smije biti povećana (pH između 3 i 5), u protivnom, ukoliko je otopina previše kisela, doći će do protoniranja amina što će inhibirati prvi stupanj odnosno reakcija se neće moći nastaviti. Heterociklički spojevi koji su načinjeni od spojenog pirimidinskog i benzenskog prstena nazivaju se kinazolini. Svojstva supstituiranih derivata kinazolina uvelike ovise o prirodi samog supstituenta. U ovom diplomskom radu kristalizirane su tri Schiffove baze s kinazolinskim supstituentom te im je određena molekulska i kristalna građa.
Abstract (english)
A substituted imine, a nitrogen analog of a ketone or aldehyde where the carbonyl ( C=O) group is replaced by an imine (C=N) group, a carbon-nitrogen double bond is called a Schiff base. The reaction where aminobenzoic acids and dialdehydes can be used as reactants is a reversible reaction it is called Schiff base synthesis. Two primary factors control the efficiency of the above reactions and have a significant effect on utilization. Slightly acidic conditions are necessary, where water can disappear, which means that the acid concetration must not be increased ( pH between 3 and 5), otherwise, if the solution is too acidic, the protonation of the amine will occur, which will inhibit the first stage and the reaction will not be able to continue. Heterocyclic compounds that are made from a fused pyrimidine and benzene ring are called quinazolines. The properties of substituted quinazoline derivatives largely depend on the nature of the substituent itself. In this thesis, three Schiff bases with a quinazoline substituent were crystallized and their crystal and molecular structures were determined.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:182:619030
Study programmeTitle: Graduate University Study of Chemistry; educational program; specializations in: Educational program
Course: Educational program
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra edukacije kemije (magistar/magistra edukacije kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2023-03-08 10:28:37