Examinando por Materia "Electrochemistry"

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    Electrochemical studies of grid and linear type M2+ (M=Zn, Cd and Pb) complexes of a bis-(hydrazone) bearing two symmetric carboxylic groups.
    (2018-07-24) Giraldo, Wilson L.; Romero, Elkin L.; Chaur, Manuel N.
    Herein we present the preparation of a bis-(hydrazone) containing a pyridine-pyrimidinepyridine framework. This compound can be visualized as a double arm system able of coordinating two metal ions in a terpyridine-like manner. By NMR (1D and 2D) it was determined a transoid conformation and an E configuration around the two imine double bonds. Complexation with M2+ (M = Zn, Cd, and Pb) ions resulted in grid and linear type structures which were studied by cyclic and squared wave voltammetry at different temperatures. No linear correlations of the redox potentials as a function of temperature were observed. The latter is likely due to rearrangements in the structure or to spin crossover events. The present results deserve further studies on the electronic properties of these types of compounds for the development of smart materials.
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    Synthesis And Electronic Properties Of Tris(4-Formylbiphenyl-4-Yl) Amine As A Building Block For Covalent Organic Frameworks And For Optoelectronic Devices.
    (2015-09-18) Fernández, Mara A.; Zuluaga, Fabio; Chaur, Manuel N.
    Herein is reported the preparation of a new triphenylamine derivative, the tris(´4-formylbiphenyl- 4-yl) amine (TFBA). This compound exhibits optoelectronic properties suitable for its use in Dye-Sensitized Solar Cells (DSSCs) and light emitting diodes. The electrochemical properties were studied by cyclic voltammetry (CV) and square wave voltammetry (SWV). At the same time, the symmetrical chemical structure of TFBA allows its utilization as a building block in Covalent Organic Frameworks (COFs) bringing additional properties and a wide range of applications to such materials.