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Please use this identifier to cite or link to this item: http://hdl.handle.net/1843/56384
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dc.creatorNathália Rodrigues de Campospt_BR
dc.creatorMiguel Julvept_BR
dc.creatorJoan Canopt_BR
dc.creatorMaria Vanda Marinhopt_BR
dc.creatorMarcos Antônio Ribeiropt_BR
dc.creatorWillian Xerxes Coelho Oliveirapt_BR
dc.creatorDaniella Olandim Reispt_BR
dc.creatorHumberto Osório Stumpfpt_BR
dc.creatorAntonio Carlos Doriguettopt_BR
dc.creatorFlávia Cavalieri Machadopt_BR
dc.creatorCarlos Basílio Pinheiropt_BR
dc.creatorFrancesc Lloretpt_BR
dc.date.accessioned2023-07-17T15:16:21Z-
dc.date.available2023-07-17T15:16:21Z-
dc.date.issued2016-
dc.citation.volume45pt_BR
dc.citation.spage172pt_BR
dc.citation.epage189pt_BR
dc.identifier.doihttps://doi.org/10.1039/c5dt03401apt_BR
dc.identifier.issn1477-9234pt_BR
dc.identifier.urihttp://hdl.handle.net/1843/56384-
dc.description.resumoA novel series of copper(II) coordination polymers [Cu2(O2CC8H9)4(pyz)]n (1), [Cu2(O2CC8H9)4(dps)]n (2), {[Cu(O2CC8H9)2(dps)(H2O)]·H2O}n (3), {[NaCu(O2CC8H9)2(bpm)(NO3)]·H2O}n (4), and [Cu4(O2CC8H9)6(OH)2(bpp)2]n (5) [O2CC8H9− = 3-phenylpropionate anion, pyz = pyrazine, dps = di(4-pyridyl)sulfide, bpm = 2,2′-bipyrimidine, and bpp = 1,3-bis(4-pyridyl)propane] have been synthesized and magneto-structurally investigated. Compounds 1 and 2 belong to a large group of copper(II) carboxylates where bis-monodentate pyz (1) and dps (2) ligands connect the paddle-wheel [CuII2(μ-O2CC8H9)4] units leading to alternating copper(II) chains. The structure of 3 consists of uniform chains of trans-[CuII(O2CC8H9)2] units linked by the bis-monodentate dps ligand. Compound 4 consists of heterobimetallic chains where [NaI2CuII2(μ-O2CC8H9)4(NO3)2] units are doubly bridged by bis-bidentate bpm ligands. Compound 5 is also a chain compound whose structure is made up by tetranuclear [CuII4(μ3-OH)2(μ-O2CC8H9)4(O2CC8H9)2] units which are doubly bridged by bis-monodentate bpp ligands. The magnetic properties were investigated in the temperature range 1.8–300 K. Strong antiferromagnetic interactions across the quadruple syn–syn carboxylate are observed in 1 and 2 [J = −378 (1) and −348 cm−1 (2)] whereas a weak ferromagnetic coupling through the double out-of-plane oxo(carboxylate) bridge occurs in 4 [J = +2.66 cm−1], the spin Hamiltonian being defined as H = −JS1·S2 with S1 = S2 = SCu = 1/2. A quasi Curie law is observed for 3 (θ = −0.36 cm−1), the bis-monodentate dps ligand being a very poor mediator of magnetic interactions. The analysis of the magnetic properties of 5 is quite complex because of the presence of two crystallographically independent tetracopper(II) units with single-μ-hydroxo, di-μ-hydroxo, μ3-hydroxo and single-μ-hydroxo plus double syn,syn carboxylate bridges in each one. The nature and values of the magnetic couplings for 5 obtained by fitting (intermediate, strong and weak antiferromagnetic interactions for the three former exchange pathways respectively, and intermediate ferromagnetic interactions for the latter one) were substantiated by DFT type calculations.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.sponsorshipFINEP - Financiadora de Estudos e Projetos, Financiadora de Estudos e Projetospt_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.ispartofDalton Transactions-
dc.rightsAcesso Restritopt_BR
dc.subjectPolymerspt_BR
dc.subjectMagneto-structuralpt_BR
dc.subject.otherPolímerospt_BR
dc.titleMagneto-structural versatility of copper(II)-3- phenylpropionate coordination polymers with N-donor coligandspt_BR
dc.typeArtigo de Periódicopt_BR
dc.url.externahttps://pubs.rsc.org/en/content/articlelanding/2016/DT/C5DT03401Apt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-1889-8800pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-2189-9572pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9350-6419pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0722-5352pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7756-0987pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-2726-1265pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-8674-1779pt_BR
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