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dc.creatorStojičkov, Marko
dc.creatorSturm, Sabrina
dc.creatorČobeljić, Božidar
dc.creatorPevec, Andrej
dc.creatorJevtović, Mima
dc.creatorScheitler, Andreas
dc.creatorRadanović, Dušanka
dc.creatorSenft, Laura
dc.creatorTurel, Iztok
dc.creatorAnđelković, Katarina K.
dc.creatorMiehlich, Matthias
dc.creatorMeyer, Karsten
dc.creatorIvanović‐Burmazović, Ivana
dc.date.accessioned2020-12-13T19:04:22Z
dc.date.available2020-12-13T19:04:22Z
dc.date.issued2020
dc.identifier.issn1099-0682
dc.identifier.urihttp://cherry.chem.bg.ac.rs/handle/123456789/4285
dc.description.abstractWe have synthesized and characterized Co(II) (1), Zn(II) (2), Fe(III) (3) and Cu(II) (4) complexes of 2,2'‐[2,6‐pyridinediylbis(ethylidyne‐1‐hydrazinyl‐2‐ylidene)]bis[N,N,N‐trimethyl‐2‐oxoethanaminium] dichloride (H2LCl2) by NMR, IR, and X‐Band EPR spectroscopy, respectively, as well as by single‐crystal X‐ray structural analysis. H2LCl2 belongs to the class of diacetylpyridine bis(hydrazone) ligands and bears two positively charged quaternary ammonium functionalities. The complexes 1–3 possess a pentagonal‐bipyramidal geometry, whereas 4 has square‐pyramidal geometry. Redox reactivity and SOD activity of the complexes was studied by means of electrochemical measurements in aqueous‐buffer and DMF or DMSO solutions, respectively, as well as by stopped‐flow measurements. Complexes 1–3 do not have SOD activity, whereas 4 exhibits a high catalytic rate constant for the superoxide dismutation, kcat = 1.73 × 107 m–1 s–1 (in MOPS buffer solution of pH = 7.4). The results were discussed in terms of complex redox potentials, electrostatic interactions and their spatial distribution, kinetic lability of metal centers, and stability of peroxo intermediates, respectively.
dc.publisherWiley-VCH Verlag
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172055/RS//
dc.relationSlovenian Research Agency (ARRS) through program P‐0175
dc.relationERASMUS + program
dc.relationDFG (IV 80/13‐1 project)
dc.relationinfo:eu-repo/grantAgreement/MESTD/inst-2020/200026/RS//
dc.rightsopenAccess
dc.sourceEuropean Journal of Inorganic Chemistry
dc.subjectCobalt
dc.subjectCopper
dc.subjectElectrochemistry
dc.subjectIron
dc.subjectSOD activity
dc.subjectStructure elucidation
dc.titleCobalt(II), Zinc(II), Iron(III), and Copper(II) Complexes Bearing Positively Charged Quaternary Ammonium Functionalities: Synthesis, Characterization, Electrochemical Behavior, and SOD Activity
dc.typearticle
dc.rights.licenseBY
dcterms.abstractСтојичков, Марко; Aнђелковић, Катарина; Јевтовић, Мима; Турел, Изток; Радановић, Душанка; Певец, Aндреј; Чобељић, Божидар; Стурм, Сабрина; Сцхеитлер, Aндреас; Сенфт, Лаура; Миехлицх, Маттхиас; Меyер, Карстен; Ивановић‐Бурмазовић, Ивана;
dc.citation.spage3347
dc.citation.epage3358
dc.identifier.wos000564577200001
dc.identifier.doi10.1002/ejic.202000415
dc.citation.rankM22~
dc.type.versionpublishedVersion
dc.identifier.scopus2-s2.0-85090058906
dc.identifier.fulltexthttp://cherry.chem.bg.ac.rs/bitstream/id/26449/Cobalt(II)_Zinc(II)_Iron(III)_pub_2020.pdf


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