Browsing by Author "Mosquera Olano, Maria Camila"
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Item Síntesis y caracterización de compuestos de coordinación, a partir de un ligando ditiocarbamato derivado de fenilendiamina con posible actividad biológica(Universidad Santiago de Cali, 2023) Mosquera Olano, Maria Camila; Flórez López, Edwin (Director); Ávila Torres, Yenny Patricia (Directora)In the present research work, the synthesis of three coordination compounds was carried out, whose ligand was synthesized from m-phenylenediamine and benzaldehyde, giving rise to the secondary amine N,Ndibenzylbenzene-1,3-diamine. The formation of the amine was verified through infrared spectroscopy, in which the spectrum obtained presented the characteristic signals of the proposed amine such as 𝑣(N-H) stretching and symmetric and asymmetric stretching of the benzylic carbon 𝑣(C-H). It was also characterized by mass spectrometry, which allowed us to observe the mass of the molecular ion of 288 m/z and the characteristic fragmentations of the proposed molecule. Likewise, to complement the characterization, the amine was analyzed by 1H and 13C NMR spectroscopy, whose spectra evidence the presence of the carbons and hydrogens of the proposed structure. Once the amine was characterized, the in situ synthesis of the coordination compounds was carried out, forming the ligand N,N-dibenzylbenzene-1,3-diamine diticarbamate and coordinating it with the metals Ni(II), Mn(II) and Cu(II). ). The three metal complexes were characterized by infrared spectroscopy, which showed the particular bands of the diticarbamate 𝑣(C-S), 𝑣(N-C) and the union of these with the metal centers (M-S). Also characterized by elemental analysis in order to suggest the molecular formula [(C22H18N2S4) -2M+2]2 in complement with the ultraviolet-visible spectra, allowing the intra-ligand, metal-ligand, and d->d transitions to be evidenced. , concluding that the copper complex possibly has a square-planar geometry, with a molecular formula [(C22H18N2S4) - 2 (M+2)3], different from the one proposed, with a copper atom joining in an Isobidentate manner to one of the groups. dithiol, and the other two Biconnectively to the second dithiol group of the ligand. It is confirmed that the nickel complex formed according to the suggested square planar formula and geometry. Meanwhile, a possible coordination of three DTC ligands with octahedral geometry was suggested for manganese.