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Građenje halogenidnih kompleksa kobalta(II) u rastopima smeše neorganskih soli i polarnih organskih jedinjenja

Formation of cobalt(II) halide complexes in molten mixtures of inorganic salts with polar organic compounds

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2011
Disertacija.pdf (12.75Mb)
Author
Matijević, Borko
Mentor
Zsigrai, István
Committee members
Gadžurić, Slobodan
Mentus, Slavko
Zsigrai, István
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Abstract
U ovoj doktorskoj disertaciji proučavano je građenje kompleksa kobalta(II) sa hloridnim i  bromidnim jonima u rastopima koji sadrže jednu neorgansku so i jedno organsko jedinjenje i/ili vodu pri različitom sastavu sistema i na različitim temperaturama. Jedan od sistema je amonijum-nitrat – acetamid – voda sastava NH4NO3∙(2,61-z)CH3CONH2∙zH2O (z = 0,0 1,61 i 2,61), a drugi sistem je amonijum–nitrat – dimetilsulfoksid (DMSO) sastava NH4NO3∙zDMSO (z = 1 – 6),  na različitim temperaturama (35, 45, 55 i 65 oC). Cilj ovog istraživanja je bio određivanje stabilnosti kompleksa kobalta koji se grade sa sa halogenidnim jonima i komponentama rastvarača, pronalaženje kvalitativne i kvantitativne zavisnosti konstanti stabilnosti kompleksa kobalta(II) sa halogenidnim jonima od temperature i molskog odnosa komponenti sistema NH4NO3∙(2,61-z)CH3CONH2∙zH2O odnosno  NH4NO3∙zDMSO, određivanje termodinamičkih parametara koji karakterišu reakcije asocijacije u ovim sistemima.
In this dissertation the complex formation between cobalt(II) and halide ions in the melts consisting of one inorganic salt, an organic compound and/or water has been studied at different temperatures. Two molten salt systems have been investigated: 1)  ammonium nitrate-acetamide-water system NH4NO3∙(2,61-z)CH3CONH2∙zH2O (z = 0.0 1.61 2.61) and 2) ammonium nitratedimethyl sulfoxide NH4NO3∙zDMSO (z = 1 – 6), at four different temperatures: 35, 45, 55 and 65 oC. The purpose of this work was to determine stability of cobalt(II) complexes formed with the halide ions and the components of the solvents, to discribe the qualitative and quantitative relationships between the stability of the complexes and the melt composition, as well as the changes in the cobalt(II) coordination due to a complex formation. Thermodynamic parameters for cobalt(II) – halide association process in these melts were alsodetermined.
Faculty:
University of Novi Sad, Faculty of Science
Date:
21-09-2011
Keywords:
rastopi soli / Molten salt / spektrofotometrija / konstante stabilnosti / termodinamika / amonijum-nitrat / dimetilsulfoksid / acetamid / spectrophotometry / stability constants / thermodynamics / ammonium nitrate / dimethyl sulfoxide / acetamide
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URI
http://nardus.mpn.gov.rs/handle/123456789/1655
http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacijadisertacija.pdf?controlNumber=(BISIS)77320&fileName=disertacija.pdf&id=197&source=NaRDuS&language=sr
http://www.cris.uns.ac.rs/record.jsf?recordId=77320&source=NaRDuS&language=sr

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