20.500.12556/RUL-185945 Karakterizacija vzorcev, dobljenih pri reakciji nikljevih(II) soli s trans-ferulno kislino in nikotinamidom Characterization of samples obtained from the reaction of nickel(II) salts with trans-ferulic acid and nicotinamide. V okviru diplomskega dela sem z reakcijami različnih izhodnih nikljevih(II) spojin (Ni(CH$_3$COO)$_2$·4H$_2$O, NiCO$_3$, NiSO$_4$·6H$_2$O, NiCl$_2$·6H$_2$O, Ni(NO$_3$)$_2$·6H$_2$O) s trans-ferulno kislino in nikotinamidom pripravil pet produktov. Reakcije sem izvajal v zmesi etanola in deionizirane vode, pri čemer je bilo množinsko razmerje med Ni$^{2+}$ in ligandoma pri vseh sintezah 1 : 2 : 2. Produkte sem karakteriziral z elementno CHN analizo, infrardečo vibracijsko spektroskopijo, elektronsko (UV–Vis–NIR) spektroskopijo in magnetnimi meritvami. Rezultati CHN analize ter medsebojno ujemanje IR in elektronskih spektrov kažejo, da je pri vseh petih sintezah nastala ista oziroma po sestavi zelo podobna koordinacijska spojina, za katero je bila predlagana formula Ni(C$_{10}$H$_9$O$_4$)$_2$(C$_6$H$_6$N$_2$O)2(H$_2$O)$_x$ (x = 2 ali 3). Magnetne meritve so pokazale paramagnetno obnašanje produktov in podpirajo predpostavko o oktaedričnem koordinacijskem okolju Ni$^{2+}$. Ker ustreznih monokristalov ni bilo mogoče izolirati, natančnega števila molekul vode in koordinacijske geometrije Ni$^{2+}$ ni bilo mogoče dokončno določiti. In this thesis, five products were prepared by reacting different starting nickel(II) compounds (Ni(CH$_3$COO)$_2$·4H$_2$O, NiCO$_3$, NiSO$_4$·6H$_2$O, NiCl$_2$·6H$_2$O, and Ni(NO$_3$)$_2$·6H$_2$O) with trans-ferulic acid and nicotinamide. The reactions were carried out in a mixture of ethanol and deionized water, with the molar ratio of Ni$^{2+}$ to the two ligands of 1 : 2 : 2. The products were characterized by CHN elemental analysis, infrared vibrational spectroscopy, electronic (UV–Vis–NIR) spectroscopy, and magnetic measurements. The CHN analysis results and the similarity of the IR and electronic spectra indicate that the same or a compositionally very similar coordination compound was obtained in all five syntheses, for which the formula Ni(C$_{10}$H$_9$O$_4$)$_2$(C$_6$H$_6$N$_2$O)2(H$_2$O)$_x$ (x = 2 or 3) was proposed. Magnetic measurements showed paramagnetic behaviour of the products and support the proposed octahedral coordination environment of Ni$^{2+}$. Since suitable single crystals could not be isolated, the exact number of water molecules and the coordination geometry of Ni$^{2+}$ could not be conclusively determined. nikelj(II) trans-ferulna kislina nikotinamid Nickel(II) trans-Ferulic Acid Nicotinamide true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-08-24 12:15:11 2026-08-24 12:15:18 2026-09-07 12:29:14 0000-00-00 00:00:00 2026 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 25589 290081795 Kralj_Aljaz_-_Karakterizacija_vzorcev,_dobljenih_pri_reakciji_Ni(II)_soli_s_trans-ferulno_kislin.pdf Kralj_Aljaz_-_Karakterizacija_vzorcev,_dobljenih_pri_reakciji_Ni(II)_soli_s_trans-ferulno_kislin.pdf 1 68338DE645F70943C8B38E19BFDADC3F 36c2b6db46750b7b5c4b89ed4ee13da56d51ebac74db80aef4d2cd03a061094f 4defb20a-9fa4-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=244965 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0