Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/128844
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dc.contributor.advisorSpeed Castro, Saskia-
dc.contributor.authorTubau Ribot, Ànnia-
dc.date.accessioned2019-02-25T16:02:49Z-
dc.date.available2019-02-25T16:02:49Z-
dc.date.issued2019-01-
dc.identifier.urihttp://hdl.handle.net/2445/128844-
dc.descriptionTreballs Finals de Grau de Química, Facultat de Química, Universitat de Barcelona, Any: 2019, Tutora: Saskia Speed Castroca
dc.description.abstractFive compounds have been synthesized in this work: [Co4(μ3-py2C(OH)O)4(4-Br-3-CF3-PhNCN)2 (PhCOO)2] (1), [Co4(μ2-py2C(OH)O)2(μ3-py2C(OCH3)O)2(μ2-4-Cl-PhNCN)2(4-Cl-PhNCN)2] (2), [Co(py2C(OH)O)(py2C(OCH2CH3)O)][NO3]·3H2O (3), [Zn2Tb(μ2-py2C(OCH2CH3)O)3(μ3-py2C(OCH2CH3)O) (NO3) (H2O)][Tb(NO3)5] (4) and [Dy5Co4(py2C(OH)O)4(μ3-py2CO2)4(μ4-py2CO2)2(O)2(H2O)6(NO3)2][NO3]5 (5). The metal ions of the five compounds are connected through oxo-bridges from the Di(2-pyridil) ketone derivatives formed after solvolysis and a posterior deprotonation. In addition the Co(II) atoms of compound 2 are connected by two R-phenylcyanamides in the end-on coordination mode. The magnetic susceptibility measurements were performed for compounds 1, 2, 4 and 5. Compound 1 and 2 exhibit a ferromagnetic coupling between the Co(II) metal ions. Compound 4 shows paramagnetic behaviour and 5 exhibit weak antiferromagnetic coupling between the Dy(II) ions. Compounds 1, 2 and 5 show SMM (Single Molecular Magnet) behaviour. The relaxation time of magnetization hasn’t been calculated.ca
dc.format.extent57 p.-
dc.format.mimetypeapplication/pdf-
dc.language.isoengca
dc.rightscc-by-nc-nd (c) Tubau, 2019-
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.classificationMetalls de terres rarescat
dc.subject.classificationFerromagnetismecat
dc.subject.classificationTreballs de fi de graucat
dc.subject.otherRare earth metalseng
dc.subject.otherFerromagnetismeng
dc.subject.otherBachelor's thesis-
dc.titleCoordination compounds derived from R-phenylcyanamido ligands and cobalt (II)eng
dc.title.alternativeCompostos de coordinació derivats de lligands R-fenilcianamida amb cobalt (II)ca
dc.typeinfo:eu-repo/semantics/bachelorThesisca
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca
Appears in Collections:Treballs Finals de Grau (TFG) - Química

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