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Issue 5, 2018
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Imine ligands based on ferrocene: synthesis, structural and Mössbauer characterization and evaluation as chromogenic and electrochemical sensors for Hg2+

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Abstract

The compounds 1-naphthyliminoferrocene, 1, and 2-methyl-1-naphthyliminoferrocene, 2, were prepared by the reaction of ferrocenecarboxaldehyde and the corresponding amine, 1-naphthylamine and 2-methyl-1-naphthylamine with one drop of pyrrolidine as the catalyst, in CH2Cl2, under an inert atmosphere. The compounds were fully characterized by elemental analyses, matrix-assisted laser desorption/ionization-time-of-flight mass spectrometry (MALDI-TOF), FT-IR, 1H and 13C NMR as well as two-dimensional, NOESY, COSY and HSQC, NMR spectroscopy. Mössbauer spectroscopic studies were performed to characterize iron species in both compounds. The solid-state molecular structures of compounds 1 and 2 were determined by single crystal X-ray diffraction. Analysis of the electrochemical behaviour of complexes 1 and 2 was performed by cyclic and square wave voltammetry. Compounds 1 and 2 were tested as chromogenic and electrochemical sensors for Hg2+.

Graphical abstract: Imine ligands based on ferrocene: synthesis, structural and Mössbauer characterization and evaluation as chromogenic and electrochemical sensors for Hg2+

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Publication details

The article was received on 07 Nov 2017, accepted on 18 Jan 2018 and first published on 18 Jan 2018


Article type: Paper
DOI: 10.1039/C7NJ04319H
Citation: New J. Chem., 2018,42, 3334-3343
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    Imine ligands based on ferrocene: synthesis, structural and Mössbauer characterization and evaluation as chromogenic and electrochemical sensors for Hg2+

    V. Rosa, A. P. S. Gaspari, F. Folgosa, C. M. Cordas, P. Tavares, T. Santos-Silva, S. Barroso and T. Avilés, New J. Chem., 2018, 42, 3334
    DOI: 10.1039/C7NJ04319H

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