prikaz prve stranice dokumenta Simetrični i asimetrični karbonohidrazidi izvedeni iz 2,3-dihidroksibenzaldehida i 2,4-dihidroksibenzaldehida
  Download
PDF 7.14 MB
master's thesis
Simetrični i asimetrični karbonohidrazidi izvedeni iz 2,3-dihidroksibenzaldehida i 2,4-dihidroksibenzaldehida
Zagreb: University of Zagreb, Faculty of Science, 2019. urn:nbn:hr:217:312363
Šuntić, Iris Renata
University of Zagreb
Faculty of Science
Department of Chemistry

Institutional repository: Repository of the Faculty of Science

Cite this document

Šuntić, I. R. (2019). Simetrični i asimetrični karbonohidrazidi izvedeni iz 2,3-dihidroksibenzaldehida i 2,4-dihidroksibenzaldehida (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:312363

Šuntić, Iris Renata. "Simetrični i asimetrični karbonohidrazidi izvedeni iz 2,3-dihidroksibenzaldehida i 2,4-dihidroksibenzaldehida." Master's thesis, University of Zagreb, Faculty of Science, 2019. https://urn.nsk.hr/urn:nbn:hr:217:312363

Šuntić, Iris Renata. "Simetrični i asimetrični karbonohidrazidi izvedeni iz 2,3-dihidroksibenzaldehida i 2,4-dihidroksibenzaldehida." Master's thesis, University of Zagreb, Faculty of Science, 2019. https://urn.nsk.hr/urn:nbn:hr:217:312363

Šuntić, I. R. (2019). 'Simetrični i asimetrični karbonohidrazidi izvedeni iz 2,3-dihidroksibenzaldehida i 2,4-dihidroksibenzaldehida', Master's thesis, University of Zagreb, Faculty of Science, accessed 28 March 2025, https://urn.nsk.hr/urn:nbn:hr:217:312363

Šuntić IR. Simetrični i asimetrični karbonohidrazidi izvedeni iz 2,3-dihidroksibenzaldehida i 2,4-dihidroksibenzaldehida [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2019 [cited 2025 March 28] Available at: https://urn.nsk.hr/urn:nbn:hr:217:312363

I. R. Šuntić, "Simetrični i asimetrični karbonohidrazidi izvedeni iz 2,3-dihidroksibenzaldehida i 2,4-dihidroksibenzaldehida", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:217:312363

Metadata
TitleSimetrični i asimetrični karbonohidrazidi izvedeni iz 2,3-dihidroksibenzaldehida i 2,4-dihidroksibenzaldehida
Title (english)Symmetrical and asymmetrical carbohydrazides derived from 2,3-dihydroxybenzaldehyde and 2,4-dihydroxybenzaldehyde
AuthorIris Renata Šuntić
MentorMirta Rubčić (mentor)
Committee memberMirta Rubčić (predsjednik povjerenstva)
Committee memberIvana Biljan (član povjerenstva)
Committee memberSanda Rončević (član povjerenstva)
Committee memberVišnja Vrdoljak (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Chemistry)
Zagreb
Defense date and country2019-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
U okviru ovog rada pripravljena su, reakcijom karbonohidrazida i odgovarajućeg aldehida u množinskom omjeru 1:2, dva disupstituirana simetrična derivata karbonohidrazida, 1,5-bis(2,3-dihidroksibenziliden)karbonohidrazid, H4L3OH-3OH i 1,5-bis(2,4-dihidroksibenziliden)karbonohidrazid, H4L4OH-4OH. Također, pripravljena je i serija monosupstituiranih karbonohidrazida izvedenih iz odgovarajućih piridinkarbaldehida, 1-(piridin-2-ilmetiliden)karbonohidrazid, H2L2py, hidrat... More 1-(piridin-3-ilmetiliden)karbonohidrazid, H2L3py·1,5(H2O) i 1-(piridin-4-ilmetiliden)karbonohidrazid, H2L4py. Konačno, korištenjem asimetričnih monosupstituiranih derivata kao ishodnih spojeva, u reakcijama s 2,3- dihidroksibenzaldehidom ili 2,4-dihidroksibenzaldehidom pripravljena je serija asimetričnih disupstituiranih karbonohidrazida, 1-(2,3-dihidroksibenziliden)-5-(piridin-2-ilmetiliden)karbonohidrazid, H3L2py-3OH, 1-(2,3-dihidroksibenziliden)-5-(piridin-3-ilmetiliden)karbonohidrazid, H3L3py-3OH, 1-(2,3-dihidroksibenziliden)-5-(piridin-4-ilmetiliden)karbonohidrazid, H3L4py-3OH, 1-(2,4-dihidroksibenziliden)-5-(piridin-2-ilmetiliden) karbonohidrazid, H3L2py-4OH, 1-(2,4-dihidroksibenziliden)-5-(piridin-3-ilmetiliden)karbonohidrazid, H3L3py-4OH i 1-(2,4-dihidroksibenziliden)-5-(piridin-4-ilmetiliden)karbonohidrazid, H3L4py-4OH. Pripravljeni spojevi okarakterizirani su na temelju podataka infracrvene spektroskopije, difrakcijom rentgenskog zračenja na praškastom uzorku, elementnom analizom, metodama termičke analize te difrakcijom rentgenskog zračenja na jediničnom kristalu. Većina pripravljenih karbonohidrazida dala je dvije kristalnih forme u čvrstom stanju, uglavnom solvat i odgovarajuću nesolvatiranu formu. Detaljna strukturna analiza priređenih kristalnih formi otkriva kako simetrični disupstituirani karbonohidrazidi u čvrstom stanju poprimaju sin konformaciju, dok se asimetrični nalaze u anti konformaciji. Less
Abstract (english)
Within this work, two disubstituted symmetrical carbohydrazides, 1,5-bis(2,3-dihydroxy-benzylidene)carbohydrazide, H4L3OH-3OH and 1,5-bis(2,4-dihydroxybenzylidene)carbohydrazide, H4L4OH-4OH were prepared by the reaction of carbohydrazide and appropriate aldehyde in the molar ratio 1:2. Moreover, a series of monosubstituted carbohydrazides were derived from carbohydrazide, 1-(pyridine-2-ylmethylidene)carbohydrazide, H2L2py, 1-(... More pyridine-3-ylmethylidene)carbohydrazide hydrate, H2L3py·1,5(H2O) and 1-( pyridine-4-ylmethylidene)-carbohydrazide, H2L4py. Using asymmetrical monosubstituted carbohydrazides as precursors in reactions with 2,3- or 2,4-dihydroxybenzaldehide, series of asymmetrical disubstituted carbohydrazides were obtained, 1-(2,3-dihydroxy-benzylidene)-5-(pyridine-2-ylmethylidene)carbohydrazide, H3L2py-3OH, 1-(2,3-dihydroxybenzylidene)-5-( pyridine-3-ylmethylidene)carbohydrazide, H3L3py-3OH, 1-(2,3- dihydroxybenzylidene)-5-( pyridine-4-ylmethylidene)carbohydrazide, H3L4py-3OH, 1-(2,4-dihydroxybenzylidene)-5-( pyridine-2-ylmethylidene)carbohydrazide, H3L2py-4OH, 1-(2,4-dihydroxybenzylidene)-5-( pyridine-3-ylmethylidene)carbohydrazide, H3L3py-4OH i 1-(2,4-dihydroxybenzylidene)-5-( pyridine-4-ylmethylidene)carbohydrazide, H3L4py-4OH. Prepared compounds were identified and characterized by means of infrared spectroscopy, X-ray powder diffraction, elemental analysis, thermal analysis and when it was possible via single-crystal X-ray diffraction. Majority of prepared carbohydrazides gave two crystal forms in the solid-state, mostly solvate and the corresponding unsolvated form. Detailed structural analysis of the crystal forms unveils that symmetrical disubstituted carbohydrazides assume a sin conformation in the solid-state, whereas the asymmetrical ones are found in the anti conformation. Less
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:312363
Study programmeTitle: Graduate university studies in chemistry; specializations in: Research programme
Course: Research programme
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra kemije (magistar/magistra kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2021-09-27
Terms of useLicence In copyright icon
Created on2019-10-16 09:59:52
accessibility

closeAccessibilityrefresh

If you wish to permanently save changes, click on Save, if not - your settings will be reset when you restart the browser.