20.500.12556/RUL-149232 Cinkove spojine s pirazinojsko kislino Zinc compounds with pyrazinoic acid Izvedli smo reakcije med cinkovim kloridom ali cinkovim acetatom dihidratom in pirazinojsko kislino (pyzaH) v različnih topilih, etanolu ali acetonitrilu. V nekaterih poskusih smo za boljše raztapljanje dodali vodo. Množinska razmerja med cinkovimi ioni in pyzaH so bila 1 : 2. Izolirali smo kristale nove spojine [ZnCl$_2$(pyzaH)$_2$·2H$_2$O] in kristale že znane spojine [Zn(H$_2$O)$_2$(pyza)$_2$], kar smo potrdili z rentgensko strukturno analizo. Nastale produkte smo okarakterizirali še z infrardečo spektroskopijo, CHN in termično analizo. Ugotovili smo, da je potekala deprotonacija pyzaH in vezava anionskega liganda pyza$^−$ na cinkov ion, če smo organskemu topilu dodali vodo. We performed reactions between zinc chloride or zinc acetate dihydrate and pyrazinoic acid (pyzaH) in different solvents, ethanol or acetonitrile. In some experiments, water was added for better dissolution. The mol ratio between zinc ions and pyzaH was 1 : 2. Crystals of the new compound [ZnCl$_2$(pyzaH)$_2$·2H$_2$O] and crystals of the already known compound [Zn(H$_2$O)$_2$(pyza)$_2$] were isolated, which was confirmed by X-ray structural analysis. Infrared spectroscopy, CHN and thermal analysis were used to further characterize the resulting products. We found that the deprotonation of pyzaH and the binding of the anionic ligand pyza$^−$ to the zinc ion took place when water was added to the organic solvent. cink pirazinojska kislina koordinacijske spojine zinc pyrazinoic acid coordination compounds true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2023-09-05 12:50:00 2023-09-05 12:50:01 2023-11-14 11:53:23 0000-00-00 00:00:00 2023 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 22937 167360259 Derganc_Klara_-_Cinkove_spojine_s_pirazinojsko_kislino.pdf Derganc_Klara_-_Cinkove_spojine_s_pirazinojsko_kislino.pdf 1 C9199F4DCBD47544A303D3BAFF268C78 40bb7edc1f62b88c06664fdeb5d29a6e25876a47ad4c706c2ef5929944636490 f4c1dd4a-4bd9-11ee-af86-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=173658 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0