Syntheses, Structure and Electrochemical Anion Recognition of 5-Ferrocenylisophthalicdiacyl Hydrazones

Abstract

Three new 5-ferrocenylisophthalicdiacyl hydrazones derivatives (molecular tweezers), have been prepared by condensation reactions of 5-ferrocenylisophthalic dihydrazide with the corresponding aromatic aldehyde. The compounds were fully characterised by spectroscopic techniques, mass spectrometry, cyclic voltammetry and an X-ray crystal structure of one example. Electrochemical investigations have demonstrated that addition of H2PO4- resulted in large shifts of respective Fc/Fc+ redox coupled to more negative potentials, indicating that these compounds have a good ability to recognise H2PO4-.