A new and efficient high-performance electrochemical glucose sensor based on a metallopolymer derived from a cobaltate (III) Schiff base complex

Ferrocene functionalized enantiomerically pure Schiff bases and their Zn(ii) and Pd(ii) complexes: a spectroscopic, crystallographic, electrochemical and computational investigation

“…[23][24][25] Schiff bases, characterized by an imine (4CQN-) or an azomethine (-CHQN-) group, 26,27 form an outstanding class of proligands that play a key role in the development of coordination chemistry due to their facile synthesis, structural flexibility, easily tunable electronic properties, selectivity and sensitivity towards the coordinated metal ion and their ability to form stable complexes under various coordination geometries and oxidation states. 22,[28][29][30] Transition-metal complexes of Schiff base ligands have been widely investigated because of their applications in various branches of science such as in catalysis, [31][32][33] sensing, [34][35][36] as NLO molecular materials, 23,[37][38][39] and in biochemistry, [40][41][42] among others. Ferrocene substituted asymmetric N 2 O 2 -tetradentate Schiff bases are generally obtained upon condensation of salicylaldehyde or its derivatives with a preformed tridentate organometallic precursor bearing a free amino group.…”

Spectroscopy, molecular structure, and electropolymerization of Ni(ii) and Cu(ii) complexes containing a thiophene-appending fluorinated Schiff base ligand

“…32,33 In addition, the electrochemical polymerization of Schiff base complexes containing 2-thienyl scaffolds has been leveraged in the fabrication of materials with applications in the fields of conducting metallopolymers, [34][35][36] non-linear optics, 37 transistors, 38 spincrossover, 39 and catalysis. 40,41 In recent years, our research team has been engaged in the preparation of metallopolymers using Schiff base complexes, specifically since they offer the ability to integrate catalytic properties 10,42 to be used as glucose sensor 43 or to modulate the non-linear optical responses in the preparation of mainand side-chain metal-containing polymers. [44][45][46] In this context, we have previously disclosed the preparation of a series of cobalt(II), nickel(II), and copper(II) complexes of a fluorinated Schiff base ligand formally resulting from the condensation of 2-thenoyltrifluoroacetone (TTA) with 1,2-diaminoethane; cyclic voltammograms of these complexes displayed oxidation waves indeed, but none of them formed polymer films upon repeated cycling.…”

Photofunctions in Hybrid Systems of Schiff Base Metal Complexes and Metal or Semiconductor (Nano)Materials

“…In general, Schiff bases and their metal complexes are multipurpose compounds produced from the condensation of amines with carbonyl compounds and are extensively utilized in many research and industrial applications. These compounds are often utilized alone or for a preparation of various hybrid materials, such as, for example, supramolecular elastomers with imine-functionalized polysiloxanes [ 9 ], conducting metallopolymers for electrochemical sensing [ 10 ], hybrid SiO 2 nanoparticles with flame retardant and antibacterial properties [ 11 ] or recently reported cocrystals of a Schiff base with lead iodide perovskite showing photo-triggered ferroelectricity [ 12 ].…”

“…There are many original papers, as well as excellent reviews on the current state of knowledge in chemistry of such compounds concerning their synthesis methods, crystal structure and useful properties including bioactive, magnetic, catalytic, electrochemical and photoluminescent ones [ 10 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. The current review focuses on very interesting photofunctions observed in hybrid systems built of Schiff base metal complexes and various materials, such as metal or semiconductor nanoparticles, as well as polymer matrices.…”