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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/47135
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dc.creatorFelipe Mageste Scaldinipt_BR
dc.creatorMaria Clara Ramalho Freitaspt_BR
dc.creatorMário de Souza Reis Juniorpt_BR
dc.creatorMaria Irene Yoshidapt_BR
dc.creatorKlaus Wilhelm Heinrich Krambrockpt_BR
dc.creatorFlávia Cavalieri Machadopt_BR
dc.date.accessioned2022-11-10T16:17:09Z-
dc.date.available2022-11-10T16:17:09Z-
dc.date.issued2018-
dc.citation.volume42pt_BR
dc.citation.issue2pt_BR
dc.citation.spage1216pt_BR
dc.citation.epage1222pt_BR
dc.identifier.doihttps://doi.org/10.1039/c7nj04564fpt_BR
dc.identifier.issn13699261pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/47135-
dc.description.resumoA new complex involving 1,3-bisbenzyl-2-oxoimidazoline-4,5-dicarboxylic acid (H2L) and a cobalt(II) metal ion designated [Co(L)(H2O)2]n has been synthesized under solvothermal conditions and characterized by elemental analyses, IR spectra, thermogravimetric analysis, single crystal X-ray diffraction and magnetization. The new compound crystallizes as pink crystals in an orthorhombic system with space group Pbca. A unit cell with 8 asymmetric units is present, each containing a Co(II) center with distorted octahedral geometry and a coordination sphere consisting of one nitrogen and five oxygen ligands. Bridging carboxylate groups are responsible for the formation of a 1D polymer. Adjacent chains are connected through OH⋯O hydrogen bonds involving coordinated water molecules leading to the formation of supramolecular arrangement. Low-temperature electron paramagnetic resonance (EPR) measurements identified that Co ions are in the divalent charge state in orthorhombic or less symmetry in high-spin (HS) configuration with principal values of g tensor of g1 = 5.5(2), g2 = 3.0(2) and g3 = 2.0(1). Magnetic susceptibility measurements as a function of temperature were analyzed by the standard Curie–Weiss law including diamagnetic contributions. Magnetic data were consistently explained by HS configuration of Co2+ ions with very small contribution of anti-ferromagnetic coupling.pt_BR
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológicopt_BR
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Geraispt_BR
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorpt_BR
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)pt_BR
dc.description.sponsorshipFAPERJ - Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiropt_BR
dc.languageengpt_BR
dc.publisherUniversidade Federal de Minas Geraispt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE FÍSICApt_BR
dc.publisher.departmentICX - DEPARTAMENTO DE QUÍMICApt_BR
dc.publisher.initialsUFMGpt_BR
dc.relation.ispartofNew Journal of Chemistrypt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectCoordination polymerpt_BR
dc.subject.otherPolímerospt_BR
dc.titleA Co(II) 1D coordination polymer constructed from 1,3-bisbenzyl-2-oxoimidazoline-4,5-dicarboxylic acid: crystal structure and magnetic propertiespt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://pubs.rsc.org/en/content/articlelanding/2018/NJ/C7NJ04564Fpt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-6202-5970pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-7562-0285pt_BR
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