Bidimensional Spectroelectrochemistry: application of a new device in the study of a o-vanillin-copper(II) complex
| Autor: | Alvaro Colina, Reinaldo Pis-Diez, Verónica Ferraresi-Curotto, Aranzazu Heras, Ana C. González-Baró, Daniel Izquierdo |
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| Rok vydání: | 2017 |
| Předmět: |
Reaction mechanism
General Chemical Engineering Analytical chemistry COPPER chemistry.chemical_element 02 engineering and technology 010402 general chemistry Electrochemistry 01 natural sciences ELECTROCHEMISTRY Light beam New device SPECTROELECTROCHEMISTRY Absorption (electromagnetic radiation) Otras Ciencias Químicas O-vanillin Ciencias Químicas REACTION MECHANISM spectroelectrochemistry Química Química analítica 021001 nanoscience & nanotechnology Copper 0104 chemical sciences chemistry copper Electrode reaction mechanism Chemistry Analytic 0210 nano-technology CIENCIAS NATURALES Y EXACTAS |
| Zdroj: | Repositorio Institucional de la Universidad de Burgos (RIUBU) instname SEDICI (UNLP) Universidad Nacional de La Plata instacron:UNLP |
| ISSN: | 0013-4686 |
| DOI: | 10.1016/j.electacta.2017.05.105 |
| Popis: | A new bidimensional spectroelectrochemistry setup for UV-Vis absorption measurements has been developed. The new device has been used to follow electrochemical reactions using two different arrangements: 1) a near-normal configuration that supplies information about the processes taking place both on the electrode surface and in the solution adjacent to it, and 2) a long-optical-pathway configuration based on a mobile slit that controls the position of a light beam passing parallel and adjacent to the electrode surface providing information only about the processes taking place in solution during the electrochemical reaction. The new setup has been validated using o-tolidine, a typical reference system for spectroelectrochemistry. The electrochemical mechanism of oxidation/reduction of Cu(o-Va)2(H2O)2 complex (o-Va = o-Vanillin = 2-hydroxy-3-methoxybenzaldehyde) has been studied using bidimensional UV-Vis absorption spectroelectrochemistry. This Cu(II) complex exhibits antimutagenic, anticarcinogenic and superoxide dismutase mimic properties. Junta de Castilla y León (BU033U16), and Ministerio de Economía y Competitividad (CTQ2014-55583-R, CTQ2014-61914-EXP, CTQ2015-71955-REDT) CONICET, UNLP, Junta de Castilla y León (BU033U16), and Ministerio de Economía y Competitividad (CTQ2014-55583-R, CTQ2014-61914-EXP, CTQ2015-71955-REDT) |
| Databáze: | OpenAIRE |
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