magistrsko delo
Anja Sever (Author), Barbara Modec (Mentor), Krištof Kranjc (Thesis defence commission member), Janez Košmrlj (Thesis defence commission member)

Abstract

Pri eksperimentalnem delu magistrske naloge smo preučevali reakcijski sistem, ki ga predstavljajo cinkov(II) sulfat(VI) heptahidrat, pikolinska kislina, piperidin, acetonitril in metanol. Produkt, ki nastane po 24-urnem segrevanju pri 105 °C v avtoklavu, je [Zn(NH3)4]SO4·2H2O. Zanimal nas je vpliv reagentov na naravo produkta. V ta namen smo acetonitril zamenjali s propionitrilom, piperidin z morfolinom, pikolinsko kislino pa s pirazinojsko kislino ali kinaldinsko kislino. Iz spremenjenih reakcijskih sistemov smo pridobili [Zn(quin)2(NH3)], [Zn(quin)2(pipeam)]·CH3CN, (morphH)(NH4)SO4 in (pipeH)(propioamH)SO4. V drugem delu je predstavljen eksperiment Infrardeči spektri spojin s tetraamincinkovim(II) ionom. Pri mnogih v eksperimentalnem delu izvedenih reakcijah kot produkt nastane [Zn(NH3)4]SO4·2H2O. Slednja spojina ima enostaven, vendar zanimiv infrardeči spekter. Poznanih je kar nekaj spojin z ionom [Zn(NH3)4]2+ in tudi njihovi infrardeči spektri so dobro razloženi. Z izbranimi [Zn(NH3)4]2+ spojinami smo oblikovali eksperiment, ki bi ga lahko izvajali študentje prvostopenjskega programa Kemija v okviru vaj pri predmetu Spektroskopija. Zadnji del magistrske naloge je umestitev v učni načrt kemije za gimnazije. Predstavljeni sta pripravi na dve učni uri. Prva je na temo računanja izkoristka pri kemijski reakciji, druga na temo koordinacijskih spojin z amonijakom.

Keywords

koordinacijska kemija;koordinacijsko število;cinkove(II) spojine;ligandi;tetraaminocinkov(II) ion;infrardeča spektroskopija;magistrska dela;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher: [A. Sever]
UDC: 546.47(043.2)
COBISS: 158703619 Link will open in a new window
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Downloads: 12
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Other data

Secondary language: English
Secondary title: Products of the nitrile and amine reaction in the presence of zinc(II) sulphate(VI)
Secondary abstract: In the experimental part of the masters thesis, a reaction system consisting of zinc(II) sulphate(VI) heptahydrate, picolinic acid, piperidine, acetonitrile and methanol was studied. A product that forms upon a 24-hour long heating in autoclave at 105 °C is [Zn(NH3)4]SO4·2H2O. We were interested in the influence of the reagents over the nature of the product. Therefore acetonitrile was replaced with propionitrile, piperidine with morpholine and picolinic acid with pyrazinoic acid or quinaldinic acid. Thus modified reaction systems afforded several other products: [Zn(quin)2(NH3)], [Zn(quin)2(pipeam)]·CH3CN, (morphH)(NH4)SO4 and/or (pipeH)(propioamH)SO4. The second part of the thesis presents a laboratory experiment titled Infrared spectra of the [Zn(NH3)4]2+ compounds. Several of the above mentioned reactions resulted in [Zn(NH3)4]SO4·2H2O. The latter compound has a simple, yet interesting spectrum. Several other compounds containing the [Zn(NH3)4]2+ ion are known. Their infrared spectra have already been interpreted. Selected [Zn(NH3)4]2+ compounds form part of a laboratory experiment which could be performed within Spectroscopy, a course that is attended by students of a first-cycle study program Chemistry. The last part of the masters thesis is its placement in the chemistry curriculum for high schools. There are instructions for the preparation of two lessons. The first one is about the yield of a chemical reaction and second about coordination compounds with ammonia.
Secondary keywords: coordination compounds;zinc(II) compounds;infrared spectroscopy;tetramminezinc(II) ion;Koordinacijske spojine;Univerzitetna in visokošolska dela;
Type (COBISS): Master's thesis/paper
Study programme: 1000379
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, smer Kemijsko izobraževanje
Pages: 47 str.
ID: 19271549