prikaz prve stranice dokumenta Priprava kompleksnih spojeva molibdena(VI) s derivatima hidrazida octene kiseline
Embargo period 2025-09-22
master's thesis
Priprava kompleksnih spojeva molibdena(VI) s derivatima hidrazida octene kiseline
Zagreb: University of Zagreb, Faculty of Science, 2023. urn:nbn:hr:217:101299
Pajski, Matea
University of Zagreb
Faculty of Science
Department of Chemistry

Institutional repository: Repository of the Faculty of Science

Cite this document

Pajski, M. (2023). Priprava kompleksnih spojeva molibdena(VI) s derivatima hidrazida octene kiseline (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:101299

Pajski, Matea. "Priprava kompleksnih spojeva molibdena(VI) s derivatima hidrazida octene kiseline." Master's thesis, University of Zagreb, Faculty of Science, 2023. https://urn.nsk.hr/urn:nbn:hr:217:101299

Pajski, Matea. "Priprava kompleksnih spojeva molibdena(VI) s derivatima hidrazida octene kiseline." Master's thesis, University of Zagreb, Faculty of Science, 2023. https://urn.nsk.hr/urn:nbn:hr:217:101299

Pajski, M. (2023). 'Priprava kompleksnih spojeva molibdena(VI) s derivatima hidrazida octene kiseline', Master's thesis, University of Zagreb, Faculty of Science, accessed 23 December 2024, https://urn.nsk.hr/urn:nbn:hr:217:101299

Pajski M. Priprava kompleksnih spojeva molibdena(VI) s derivatima hidrazida octene kiseline [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2023 [cited 2024 December 23] Available at: https://urn.nsk.hr/urn:nbn:hr:217:101299

M. Pajski, "Priprava kompleksnih spojeva molibdena(VI) s derivatima hidrazida octene kiseline", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:217:101299

Metadata
TitlePriprava kompleksnih spojeva molibdena(VI) s derivatima hidrazida octene kiseline
Title (english)Preparation of molybdenum(VI) complexes with acetic acid hydrazide derivatives
AuthorMatea Pajski
MentorJana Pisk (mentor)
Committee memberJana Pisk (predsjednik povjerenstva)
Committee memberMorana Dulić (član povjerenstva)
Committee memberDavor Kovačević (član povjerenstva)
Committee memberMirta Rubčić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Chemistry)
Zagreb
Defense date and country2023-09-22, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Kompleksni spojevi molibdena(VI) i hidrazonskih liganada su vrlo dobar modelni sustav za proučavanje enzimske aktivnosti molibdena u biološkim sustavima te se također koriste i kao katalizatori mnogobrojnih reakcija. U sklopu ovog rada pripremljena su dva hidrazonska liganda, derivati hidrazida octene kiseline i 2-hidroksibenzaldehida (H2L 1 ), odnosno 2-hidroksi5-nitrobenzaldehida (H2L 2 ). Reakcijama dioksobis(pentan-2,4-dionato)molibdena(VI) i odgovarajućeg hidrazonskog liganda uz zagrijavanje pripravljeni su kompleksni spojevi molibdena(VI). Mononuklearni kompleksni spojevi molibdena(VI), [MoO2(L)(D)] (L2– =deprotonirani ligand, D=molekula otapala), sintetizirani su reakcijama u metanolu, etanolu i acetonitrilu, a polinukleani kompleksni spojevi molibdena(VI), [MoO2(L)]n, dobiveni su zagrijavanjem mononuklearnih spojeva na odgovarajuću temperaturu. Dobiveni hidrazonski ligandi i kompleksni spojevi molibdena(VI) identificirani su i analizirani metodama infracrvene spektroskopije, razlikovne pretražne kalorimetrije i termogravimetrijske analize. Kristalne i molekulske strukture mononuklearnih kompleksa [MoO2(L1 )(MeOH)], [MoO2(L2 )(MeOH)], [MoO2(L1 )(H2O)] i [MoO2(L2 )(EtOH)] određene su difrakcijom rentgenskih zraka na jediničnom kristalu.
Abstract (english)
Molybdenum(VI) complexes with hydrazone ligands are an excellent model system for studying the enzymatic activity of molybdenum in biological systems, also, they are used as catalysts of many reactions. As a part of this thesis, two hydrazone ligands, derivatives of acetic acid hydrazide and 2-hydroxybenzaldehyde (H2L 1 ) or 2-hydroxy-5-nitrobenzaldehyde (H2L 2 ) were prepared. By reacting dioxobis(pentane-2,4-dionato)molybdenum(VI) and a corresponding hydrazone ligand under high-temperature conditions, molybdenum(VI) complexes were prepared. Mononuclear complexes of molybdenum(VI), [MoO2(L)(D)] (L2– =deprotonated ligand, D=solvent molecule) were synthesized by reactions in methanol, ethanol, and acetonitrile, while the polynuclear complexes of molybdenum(VI), [MoO2(L)]n were obtained by heating the mononuclear complexes to an appropriate temperature. Obtained hydrazone ligands and molybdenum(VI) complexes were identified and analyzed by infrared spectroscopy, differential scanning calorimetry, and thermogravimetry. Crystal and molecular structures of mononuclear complexes [MoO2(L1 )(MeOH)], [MoO2(L2 )(MeOH)], [MoO2(L1 )(H2O)] and [MoO2(L2 )(EtOH)] were determined by using single crystal X-ray diffraction.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:101299
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 conditionsEmbargoed access
Embargo expiration date: 2025-09-22
Terms of useLicence In copyright icon
Created on2023-10-17 12:19:19