Síntese, caracterização e estudo termoanalítico dos ftalatos, isoftalatos e tereftalatos de cobalto e manganês
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2016-04-29
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Universidade Federal de Goiás
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It is possible to observe an increase related research for the synthesis of coordination compounds and crystal lattices using transition metals and organic binders due to their great potential applications. The aim of this study was to synthesize the compounds Phthalate, Isophthalate and Terephthalate of Cobalt and Manganese through the reaction of the metal carbonate in excess with their acids studied. The synthesized compounds are presented in the form of crystalline solids. These compounds were characterized using analytical techniques: Simultaneous Thermogravimetric and Differential Scanning Calorimetry (DSC-TG), Fourier Transform Infrared Spectroscopy (FTIR). Thermogravimetry Analysis coupled to Fourier Transform Infrared Spectroscopy (TG-FTIR) and Differential Scanning Calorimetry (DSC). From the TG-DSC curves was possible to evaluate the thermal stability and the dehydration mechanism as well’as the empirical formula of the compounds as CoFta ∙ 2.5H2O, CoIFta ∙ 5H2O, CoTFta ∙ 4,5H2O for cobalt compounds and MnFta ∙ 0.5H2O, MnIFta ∙ 2.5H2O and MnTfta for manganese compounds. Even through the infrared spectra (FTIR), it was also possible to suggest the metal-ligand coordination mode as bridge for all compounds synthesized.
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CARMO, J. P. S. Síntese, caracterização e estudo termoanalítico dos ftalatos, isoftalatos e tereftalatos de cobalto e manganês. 2016. 64 f. Dissertação (Mestrado em Química) - Universidade Federal de Goiás, Goiânia, 2016.