Kazan Federal University Digital Repository

Tri- and tetranuclear heteropivalate complexes with core {Fe<inf>2</inf>Ni<inf>x</inf>O} (x = 1, 2): Synthesis, structure, magnetic and thermal properties

Show simple item record

dc.contributor.author Lutsenko I.
dc.contributor.author Kiskin M.
dc.contributor.author Nelyubina Y.
dc.contributor.author Efimov N.
dc.contributor.author Maksimov Y.
dc.contributor.author Imshennik V.
dc.contributor.author Zueva E.
dc.contributor.author Goloveshkin A.
dc.contributor.author Khoroshilov A.
dc.contributor.author Rentschler E.
dc.contributor.author Sidorov A.
dc.contributor.author Eremenko I.
dc.date.accessioned 2020-01-15T21:17:39Z
dc.date.available 2020-01-15T21:17:39Z
dc.date.issued 2019
dc.identifier.issn 0277-5387
dc.identifier.uri https://dspace.kpfu.ru/xmlui/handle/net/155573
dc.description.abstract © 2018 Elsevier Ltd The reactions of complex [Fe2Ni(O)(Piv)6(Et2O)(H2O)2] (1) with 1,10-phenanthroline (phen) and 2,2′-bipyridine (bpy) gave the following new coordination compounds: the trinuclear complex [Fe2Ni(O)(Piv)6(phen)H2O]·(C2H5)2O (2), the tetranuclear ones [Fe2Ni2(OH)2(Piv)8(phen)2] (3) and [Fe2Ni2(OH)2(Piv)8(bpy)2] (4), depending on the crystallization conditions. According to single crystal X-ray diffraction data, all the compounds have molecular structures. The Mössbauer spectra of 1–3 correspond to high-spin Fe3+ ions in an octahedral environment consisting of oxygen atoms. The DC magnetic susceptibility studies and quantum-chemical analysis of intra- and intermolecular J pathways using broken-symmetry density functional theory (DFT) showed that all exchange interactions in tri- (1, 2) and tetranuclear (3) complexes are antiferromagnetic. The exchange coupling is weaker in 3 due to the lower ability of the bridging OH-groups to mediate superexchange. Thermal destruction processes have been studied for 2 and 3. The final products of thermolysis are the mixed oxide NiFe2O4.
dc.relation.ispartofseries Polyhedron
dc.subject Crystal structure
dc.subject Heterometallic carboxylate complexes
dc.subject Iron(III)
dc.subject Magnetic properties
dc.subject Nickel(II)
dc.title Tri- and tetranuclear heteropivalate complexes with core {Fe<inf>2</inf>Ni<inf>x</inf>O} (x = 1, 2): Synthesis, structure, magnetic and thermal properties
dc.type Article
dc.relation.ispartofseries-volume 159
dc.collection Публикации сотрудников КФУ
dc.relation.startpage 426
dc.source.id SCOPUS02775387-2019-159-SID85059123924


Files in this item

This item appears in the following Collection(s)

  • Публикации сотрудников КФУ Scopus [22633]
    Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.

Show simple item record

Search DSpace


Advanced Search

Browse

My Account