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master's thesis
Mononuklearni kompleksi molibdena(VI) s hidrazonskim ligandima: trans-utjecaj kisikova atoma
Zagreb: University of Zagreb, Faculty of Science, 2016. urn:nbn:hr:217:860979
Bjelopetrović, Alen
University of Zagreb
Faculty of Science
Department of Chemistry

Institutional repository: Repository of the Faculty of Science

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Bjelopetrović, A. (2016). Mononuklearni kompleksi molibdena(VI) s hidrazonskim ligandima: trans-utjecaj kisikova atoma (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:860979

Bjelopetrović, Alen. "Mononuklearni kompleksi molibdena(VI) s hidrazonskim ligandima: trans-utjecaj kisikova atoma." Master's thesis, University of Zagreb, Faculty of Science, 2016. https://urn.nsk.hr/urn:nbn:hr:217:860979

Bjelopetrović, Alen. "Mononuklearni kompleksi molibdena(VI) s hidrazonskim ligandima: trans-utjecaj kisikova atoma." Master's thesis, University of Zagreb, Faculty of Science, 2016. https://urn.nsk.hr/urn:nbn:hr:217:860979

Bjelopetrović, A. (2016). 'Mononuklearni kompleksi molibdena(VI) s hidrazonskim ligandima: trans-utjecaj kisikova atoma', Master's thesis, University of Zagreb, Faculty of Science, accessed 29 December 2024, https://urn.nsk.hr/urn:nbn:hr:217:860979

Bjelopetrović A. Mononuklearni kompleksi molibdena(VI) s hidrazonskim ligandima: trans-utjecaj kisikova atoma [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2016 [cited 2024 December 29] Available at: https://urn.nsk.hr/urn:nbn:hr:217:860979

A. Bjelopetrović, "Mononuklearni kompleksi molibdena(VI) s hidrazonskim ligandima: trans-utjecaj kisikova atoma", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:217:860979

Metadata
TitleMononuklearni kompleksi molibdena(VI) s hidrazonskim ligandima: trans-utjecaj kisikova atoma
Title (english)Mononuclear molybdenum(VI) complexes with hydrazone ligands: trans-influence of oxygen atom
AuthorAlen Bjelopetrović
MentorMarina Cindrić (mentor)
Committee memberMarina Cindrić (predsjednik povjerenstva)
Committee memberPredrag Novak (član povjerenstva)
Committee memberDavor Kovačević (član povjerenstva)
Committee memberVišnja Vrdoljak (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Chemistry)
Zagreb
Defense date and country2016-07-15, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
U okviru ovog diplomskog rada ispitivane su reakcije salicilaldehid benzoilhidrazona, 4– metoksisalicilaldehid benzoilhidrazona i 3–metoksisalicilaldehid benzoilhidrazona s bis(pentan–2,4– dionato)dioksomolibdenom(VI). Kompleksi su priređeni klasičnim metodama sinteze (na sobnoj i na povišenoj temperaturi te solvotermalno). Izolirani produkti mogu se opisati formulom [MoO2(L)(D)], gdje je L tridentatni, dvostruko deprotonirani hidrazonato ligand, a D neutralna molekula otapala (metanol, voda, piridin) vezana kao monodentatni ligand na šesto koordinacijsko mjesto. Kako bi se dodatno istražila jakost veze između neutralnog monodentatnog liganda i metalnog centra, kompleksi su otopljeni u etanolu, n–propanolu, n–butanolu, t–butanolu, piridinu, α–pikolinu i γ−pikolinu. Kompleksi su također izlagani parama otapala, pri čemu dolazi do zamjene neutralnog liganda molekulom otapala. Dodatno, otapanjem [MoO2(VanHB)(MeOH)] (VanHB = salicilaldehid 3– metoksibenzoilhidrazon) u acetonitrilu, priređen je polimerni kompleksni spoj koji se može opisati formulom [MoO2(VanHB)]n ∙ nCH3CN. Svi dobiveni produkti su okarakterizirani na temelju podataka iz infracrvenih spektara i difrakcije rendgenskog zračenja na polikristalnom uzorku, a u pojedinim slučajevima i termogravimetrijske analize, kao i difrakcije rentgenskog zračenja na jediničnom kristalu. Izolirani kompleksi kojima je određena molekulska i kristalna struktura su: [MoO2(L)(MeOH)], [MoO2(L)(OH2)] (L= salicilaldehid benzoilhidrazon, salicilaldehid 4–metoksibenzoilhidrazon ili salicilaldehid 3–metoksibezoilhidrazon), [MoO2(L2)py] (L2 = salicilaldehid 4–metoksibenzoilhidrazon) i [MoO2(L3)]n · nCH3CN (L3 = salicilaldehid 3–metoksibezoilhidrazon).
Abstract (english)
In this diploma thesis reactions of salicylaldehyde benzoylhydrazone, salicylaldehyde 4– metoxybenzoylhydrazone and salicylaldehyde 3–metoxybezoylhydrazone with bis[penatane–2, 4–dionato]dioxomolybdenum(VI), [MoO2(acac)2] were investigated. Complexes were synthesised by means of conventional chemical synthesis using methanole or acetonitrile as solvent (at room temperature, under reflux and under solvotermal conditions). Products of reactions were complexes with general formula [MoO2(L)(D)], L = tridentate, double deprotonated hydrazone ligand, D = neutral solvent molecule (methanole, water or pyridine) coordinated to molybdenum ion. In order to further investigate the strenght of the bond between metal center and neutral ligand D, trans to oxygen atom of cis–MoO2 2+, prepared complexes were dissolved or exposed to vapors of ROH (R = –C2H5, –C3H7, – C4H9) and N–bases (pyridine, α–picoline and γ–picoline). The results were new complexes in which ligand D, coordinated to molybdenum was exchanged. All isolated products were characterised by means of infrared spectroscopy and PXRD, in some cases by means of thermogravimetric analisys and when it was possible by X–ray diffraction on single crystals. Following complexes were isolated and their molecular and crystal structures were determined: [MoO2(L)(MeOH)], [MoO2(L)(OH2)] (L= salicylaldehyde benzoylhydrazone, salicylaldehyde 4–metoxybenzoylhydrazone or salicylaldehyde 3–metoxybezoylhydrazone), [MoO2(L2)py] (L2 = salicylaldehyde 4–metoxybenzoylhydrazone) and [MoO2(L3)]n · nCH3CN (L3 = salicylaldehyde 3–metoxybezoylhydrazone).
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:860979
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: 2018-07-15
Terms of useLicence In copyright icon
Created on2017-03-22 11:38:41