Detalhes bibliográficos
| Ano de defesa: |
2019 |
| Autor(a) principal: |
Faria, Hiorrana Cássia
 |
| Orientador(a): |
Souza, Aparecido Ribeiro de
|
| Banca de defesa: |
Souza, Aparecido Ribeiro de,
Gomes, Danielle Cangussu de Castro,
Quintino, Michelle Pereira |
| Tipo de documento: |
Dissertação
|
| Tipo de acesso: |
Acesso aberto |
| Idioma: |
por |
| Instituição de defesa: |
Universidade Federal de Goiás
|
| Programa de Pós-Graduação: |
Programa de Pós-graduação em Química (IQ)
|
| Departamento: |
Instituto de Química - IQ (RG)
|
| País: |
Brasil
|
| Palavras-chave em Português: |
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| Palavras-chave em Inglês: |
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| Área do conhecimento CNPq: |
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| Link de acesso: |
http://repositorio.bc.ufg.br/tede/handle/tede/10879
|
Resumo: |
With increasing population and world economy, the demand for energy is increasing (EPE, 2019). Currently, most of the world's energy demand (about 75%) is supplied through the use of fossil fuels, which lead to a significant increase in CO2 levels in the atmosphere. Fossil fuels are not renewable, so the need for clean, carbon-free and renewable alternative energy sources (PAGLIARO et al 2010). Hydrogen is a chemical element with large capacity to store energy. And in this work ruthenium complexes with bi- and tridentate pyridine-pyrazole ligands capable of oxidizing the water molecule were developed. The challenge is that the ligands must be able to acquire an approximately linear arrangement necessary to form a heptacoordinate pentagonal bipyramidal arrangement. Four polypyridine pyrazole ligands and four unpublished complexes were synthesized, (P3) [Ru(bPyPz)(DMSO)Cl2](Cl), (CF1) [Ru(bPyPz)2](Cl2), (CF2) [Ru(bPyPz)(bpy)Cl](Cl2) e (CF3) [Ru(bPyPz)(L2)Cl]2+(Cl2). The methods of characterization of the compounds were 1H NMR, infrared vibrational spectrometry and visible ultraviolet spectroscopy. |
