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Title:Sinteza in karakterizacija manganovih koordinacijskih spojin z aminopiridini
Authors:Gyurkač, Marcell (Author)
Kristl, Matjaž (Mentor) More about this mentor... New window
Ban, Irena (Co-mentor)
Files:.pdf UN_Gyurkac_Marcell_2018.pdf (1,95 MB)
 
Language:Slovenian
Work type:Bachelor thesis/paper (mb11)
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:Namen diplomskega dela je sinteza in karakterizacija manganovih koordinacijskih spojin z različnimi položajnimi izomeri aminopiridinov. Raztopine dvovalentnega mangana z dodatki različnih aminopiridinskih raztopin smo izpostavljali različnim pogojem (hitrost mešanja raztopine, temperatura raztopine, tlak sistema, izbor atmosfere). Testirali smo tudi različne sintetske in kristalizacijske metode za pridobitev končnih produktov. Najprej smo ugotovili v katerih topilih so topni reaktanti, ki vsebujejo mangan. Pri sintezah smo uporabljali tri različne reagente mangana in tri različne aminopiridine. Za raztapljanje reagentov smo uporabili 5 različnih topil Dobljene trdne produkte smo analizirali z rentgenskim praškovnim difraktometrom. Iz analiz teh rezultatov smo prišli do ugotovitve, da deionizirana voda ni primerno topilo za sintezo manganovih kompleksov z aminopiridini, saj imajo molekule vode večjo afiniteto do mangana kot aminopiridinski ligandi. Hkrati smo prišli do ugotovitve, da v fazi izparevanja topila pride do oksidacije oborine v reakcijski mešanici, ki se manifestira v spremembi barve trdnega produkta v temno rjavo. V sklopu raziskav smo sintetizirali dve že znani spojini. Prva je koordinacijska spojina, ki daje sive igličaste kristale, vsebuje dvovalenten mangan in protoniran aminopiridin. Njena formula: [H(2-apy)][MnCl3(H2O)]. Drug produkt ne vsebuje mangana, vsebuje pa protoniran aminopridin. Njegova formula: C5H7N2+·NO3-. Ta spojina tvori rumene igličaste kristale.
Keywords:mangan, aminopiridin, koordinacijske spojine, kompleksi, ligandi
Year of publishing:2018
Publisher:[M. Gyurkač]
Source:Maribor
UDC:661.871:669.74(043.2)
COBISS_ID:21479958 Link is opened in a new window
NUK URN:URN:SI:UM:DK:VBIDILMC
License:CC BY-NC-ND 4.0
This work is available under this license: Creative Commons Attribution Non-Commercial No Derivatives 4.0 International
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Downloads:64
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Categories:KTFMB - FKKT
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Secondary language

Language:English
Title:Synthesis and characterization of manganese coordination compounds with aminopyridines
Abstract:The main aim of our study was the synthesis and characterisation of manganese coordination compounds with various substitution isomers of aminopyridines. To the divalent manganese solutions different solutions of aminopyridines were added and exposed to various conditions (stirring velocity of the solution, temperature of the solution, pressure of the system, choice of the atmosphere). Different synthetic and crystallisation methods were also tested to obtain the final products. In the first period of the experimental section the solubilities of different manganese compounds were determined in chosen solutes. For the synthetic step three different manganese compounds and three different aminopyridines were used. 5 different solutes were used for the dissolution of the starting materials. The obtained solid products were analysed on an X-ray powder diffractometer. The results showed that deionised water is not appropriate for the synthesis of manganese complexes with aminopyridines, because water molecules have higher affinity for manganese than the aminopyridine ligands. Furthermore, the investigations indicated that the precipitated product oxidised within the solute evaporation step to form a deep brown solid product. In the scope of our research we managed to synthesize two already known compounds. Firstly, grey needle like crystals were obtained with the molecular formula: [H(2-apy)][MnCl3(H2O)]. The product consists of a divalent manganese anion core and a positively charged 2-aminopyridine cation. The second compound contains no manganese, but likewise the first compound includes a protonated 2-aminopyridine cation as well. It forms yellow needle like crystals.
Keywords:manganese, aminopyridine, coordination compounds, complexes, ligands


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