20.500.12556/RUL-184365 Reakcija cinka(II) s pikolinatom in piperazinom Zinc(II) reactions with picolinate and piperazine Z različnimi reakcijami smo pripravili več koordinacijskih spojin cinka(II), ki vsebujejo tako pikolinat kot piperazin. Ugotovili smo, da je naravo produkta mogoče usmerjati s količino dodanega piperazina. Ob dodatku manjših množin piperazina (pz) je nastala dvojedrna spojina [{Zn(pic)$_2$}$_2$(pz)]‧Et$_2$O, medtem ko je pri večjih množinah nastal enodimenzionalni koordinacijski polimer [Zn(pic)$_2$(pz)]$_n$. V obeh koordinacijskih spojinah je piperazin vezan dvovezno mostovno. Preučevali smo tudi reakcije sintetiziranih spojin s pikolinsko kislino v alkoholnem mediju (metanol ali etanol). Pri teh reakcijah se je piperazin protoniral, nastali pikolinat pa koordiniral na cink(II). Tako so nastale ionske spojine, ki jih gradijo ioni pzH$_2^{2+}$ in [Zn(pic)$_3$]$^–$. Several zinc(II) coordination compounds containing both picolinate and piperazine were prepared through various reactions. We found that the nature of the product can be controlled by the amount of added piperazine. At lower amounts of piperazine, the dinuclear compound [{Zn(pic)$_2$}$_2$(pz)]‧Et$_2$O was formed, whereas at higher amounts, the one-dimensional coordination polymer [Zn(pic)$_2$(pz)]$_n$ was obtained. In both coordination compounds, piperazine is bound in a bidentate bridging manner. We also studied the reactions of the synthesized compounds with picolinic acid in an alcohol medium (methanol or ethanol). In these reactions, piperazine got protonated, while the resulting picolinate coordinated to zinc(II) ion. Ionic compounds composed of pzH$_2^{2+}$ and [Zn(pic)$_3$]$^–$ ions were formed. Cink pikolinat piperazin koordinacijske spojine Zinc picolinate piperazine coordination compounds true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-07-06 09:35:26 2026-07-06 09:35:31 2026-07-31 13:33:09 0000-00-00 00:00:00 2026 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 26211 286594051 Zoran_Iris_-_Reakcija_cinka(II)_s_pikolinatom_in_piperazinom.pdf Zoran_Iris_-_Reakcija_cinka(II)_s_pikolinatom_in_piperazinom.pdf 1 BF990ECF1302EBB19976CCDA10BC9BD4 f3ef1d92fe7b6f777fbdfe2ae91991be4bc81943f5231808dc9f0ee981fad8a4 268aef17-790d-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=237048 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0