A new series of Schiff base Ni(II)4 cubanes: Evaluation of magnetic coupling via carboxylate bridges.

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dc.contributor.authorGusev, Alexeycs
dc.contributor.authorNemec, Ivancs
dc.contributor.authorHerchel, Radovancs
dc.contributor.authorBaluda, Yuriycs
dc.contributor.authorMaria, Kryukovacs
dc.contributor.authorYefimov, Nikolaycs
dc.contributor.authorKiskin, Mikhailcs
dc.contributor.authorLinert, Wolfgangcs
dc.coverage.issue1cs
dc.coverage.volume196cs
dc.date.accessioned2021-04-13T22:56:52Z
dc.date.available2021-04-13T22:56:52Z
dc.date.issued2021-01-02cs
dc.description.abstractThe Schiff base ligand H2L has been synthesized by condensation of 2-aminophenol with 3-methyl-1-phenyl-4-formylpyrazol-5-one and reaction between H2L and Ni(OOCR3)2, R = H in 1, –CH3 in 2, Cl in 3, yielded three new tetranuclear Ni(II) complexes. The complexes have been characterized by elemental analysis, IR- and ES-MS spectroscopy. Their structures as well as structure of ligand were determined by single-crystal X-ray diffraction. Compounds 1–3 possesses tetranuclear cubane-like structures containing [Ni4L4(R3COO)2]2 complex anions, which are charge balanced by two triethyl ammonium cations. Furthermore, the crystal structure of the Ni(II) cubane compound containing trichloroacetate bridging ligands, is reported for the first time. Variable temperature magnetic susceptibility measurements revealed interplay between ferromagnetic and antiferromagnetic exchange in the tetranuclear cubane-like compounds 1–3, in which ferromagnetic interactions were enhanced by introducing carboxylate bridging groups. DFT calculations supported the analysis of magnetic data.en
dc.formattextcs
dc.format.extent1-8cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPOLYHEDRON. 2021, vol. 196, issue 1, p. 1-8.en
dc.identifier.doi10.1016/j.poly.2020.115017cs
dc.identifier.issn0277-5387cs
dc.identifier.other167751cs
dc.identifier.urihttp://hdl.handle.net/11012/196369
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofPOLYHEDRONcs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S0277538720306744cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/0277-5387/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectNi(II) complexen
dc.subjectSchiff baseen
dc.subjectCubane-like structuresen
dc.subjectX-ray diffractionen
dc.subjectMagnetic propertiesen
dc.titleA new series of Schiff base Ni(II)4 cubanes: Evaluation of magnetic coupling via carboxylate bridges.en
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-167751en
sync.item.dbtypeVAVen
sync.item.insts2021.04.14 00:56:52en
sync.item.modts2021.04.14 00:15:26en
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Magneto-Optická a THz Spektroskopiecs
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