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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

<p>U ovoj doktorskoj disertaciji proučavano je građenje&nbsp;kompleksa kobalta(II) sa hloridnim i &nbsp;bromidnim jonima u&nbsp;rastopima koji sadrže jednu neorgansku so i jedno organsko&nbsp;jedinjenje i/ili vodu pri različitom sastavu sistema i na različitim&nbsp;temperaturama. Jedan od sistema je amonijum-nitrat &ndash;&nbsp;acetamid &ndash; voda sastava NH<sub>4</sub>NO<sub>3</sub>∙(2,61-z)CH<sub>3</sub>CONH<sub>2</sub>∙zH<sub>2</sub>O (z =&nbsp;0,0 1,61 i 2,61), a drugi sistem je amonijum&ndash;nitrat &ndash; dimetilsulfoksid&nbsp;(DMSO) sastava NH<sub>4</sub>NO<sub>3</sub>∙zDMSO (z = 1 &ndash; 6), &nbsp;na&nbsp;različitim temperaturama (35, 45, 55 i 65 <sup>o</sup>C).&nbsp;Cilj ovog istraživanja je bio određivanje stabilnosti&nbsp;kompleksa kobalta koji se grade sa sa halogenidnim jonima i&nbsp;komponentama rastvarača, pronalaženje kvalitativne i kvantitativne&nbsp;zavisnosti konstanti stabilnosti kompleksa kobalta(II) sa&nbsp;halogenidnim jonima od temperature i molskog odnosa&nbsp;komponenti sistema NH<sub>4</sub>NO<sub>3</sub>∙(2,61-z)CH<sub>3</sub>CONH<sub>2</sub>∙zH<sub>2</sub>O odnosno &nbsp;NH<sub>4</sub>NO<sub>3</sub>∙zDMSO, određivanje termodinamičkih parametara koji&nbsp;karakteri&scaron;u reakcije asocijacije u ovim sistemima.</p> / <p>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) &nbsp;ammonium nitrate-acetamide-water system NH<sub>4</sub>NO<sub>3</sub>∙(2,61-z)CH<sub>3</sub>CONH<sub>2</sub>∙zH<sub>2</sub>O (z = 0.0 1.61 2.61) and 2) ammonium nitratedimethyl sulfoxide NH<sub>4</sub>NO<sub>3</sub>∙zDMSO (z = 1 &ndash; 6), at four different temperatures: 35, 45, 55 and 65 <sup>o</sup>C. 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) &ndash; halide association process in these melts were alsodetermined.</p>

Identiferoai:union.ndltd.org:uns.ac.rs/oai:CRISUNS:(BISIS)77320
Date21 September 2011
CreatorsMatijević Borko
ContributorsZsigrai István, Gadžurić Slobodan, Mentus Slavko
PublisherUniverzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, University of Novi Sad, Faculty of Sciences at Novi Sad
Source SetsUniversity of Novi Sad
LanguageSerbian
Detected LanguageEnglish
TypePhD thesis
Formatapplication/pdf

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