New hydrophilic 3-hydroxy-4-pyridinone chelators with ether-derived substituents: Synthesis and evaluation of analytical performance in the determination of iron in waters

• Tipo: Artigo em Revista Científica Internacional
• Data: 2019

Autores

Moniz, T (Autor) Outra; Cunha Silva, L (Autor) FCUP; Mesquita, RBR (Autor) Outra; Miranda, JLA (Autor) Outra; Silva, AMN (Autor) Outra; Silva, AMG (Autor) FCUP; Rangel, AOSS (Autor) Outra; de Castro, B (Autor) Outra; Maria Rangel (Autor) ICBAS

Revista

Título: Polyhedron

Vol. 160

Páginas: 145-156

ISSN: 0277-5387

Editora: Elsevier

Indexação

ISI Web of Knowledge - 11 Citações

Scopus - 11 Citações

Outras Informações

ID Authenticus: P-00Q-8VZ

DOI: 10.1016/j.poly.2018.12.005

Abstract (EN): Three new hydrophilic 3-hydroxy-4-pyridinone chelators containing ether-derived substituents were prepared by a more sustainable synthetic protocol that involves the use of microwave heating and commercially available amines, allowing the successful production of highly water soluble chelators with improved reaction yields and reaction times. Compared with parent 3-hydroxy-4-pyridinone ligands, the new compounds were obtained faster and in higher amounts, facilitating the scale up of the synthesis, which is crucial to produce these ligands and their respective iron(III) complexes for many biological, analytical and agricultural applications. Ligands were fully characterized by H-1 and C-13 Nuclear Magnetic Resonance, High Resolution Mass Spectrometry and Single Crystal X-ray Diffraction and their performance in the analytical determination of iron(III) in water samples was evaluated by sequential injection methods. The results obtained are scientifically relevant, pointing out the potential of the new and straightforwardly synthesized ligands as analytical reagents for determination of iron(III).

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12