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| dc.contributor | Speed Castro, Saskia | |
| dc.creator | Tubau Ribot, Ànnia | |
| dc.date | 2019-02-25T16:02:49Z | |
| dc.date | 2019-02-25T16:02:49Z | |
| dc.date | 2019-01 | |
| dc.date.accessioned | 2024-12-16T10:27:18Z | |
| dc.date.available | 2024-12-16T10:27:18Z | |
| dc.identifier | http://hdl.handle.net/2445/128844 | |
| dc.identifier.uri | http://fima-docencia.ub.edu:8080/xmlui/handle/123456789/22235 | |
| dc.description | Treballs Finals de Grau de Química, Facultat de Química, Universitat de Barcelona, Any: 2019, Tutora: Saskia Speed Castro | |
| dc.description | Five 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. | |
| dc.format | 57 p. | |
| dc.format | application/pdf | |
| dc.language | eng | |
| dc.rights | cc-by-nc-nd (c) Tubau, 2019 | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.source | Treballs Finals de Grau (TFG) - Química | |
| dc.subject | Metalls de terres rares | |
| dc.subject | Ferromagnetisme | |
| dc.subject | Treballs de fi de grau | |
| dc.subject | Rare earth metals | |
| dc.subject | Ferromagnetism | |
| dc.subject | Bachelor's theses | |
| dc.title | Coordination compounds derived from R-phenylcyanamido ligands and cobalt (II) | |
| dc.title | Compostos de coordinació derivats de lligands R-fenilcianamida amb cobalt (II) | |
| dc.type | info:eu-repo/semantics/bachelorThesis |
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