Synthesis,characterization, electropolymerization,and possible utilities of a new ruthenium–thiophene complex |
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Authors: | Beatriz González M Angélica del Valle Fernando R Díaz Christian Espinosa‐Bustos Andrés M R Ramírez Loreto A Hernández |
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Affiliation: | 1. Laboratorio de Electroquímica de Polímeros, Departamento de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Avenida V. Mackenna, Santiago, Chile;2. Departamento de Química Orgánica, Facultad de Química, Pontificia Universidad Católica de Chile, Avenida V. Mackenna, Santiago, Chile |
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Abstract: | RuCl2(p‐cymene)]2 was reacted with silver triflate and thiophene to give the sandwich complex Ru(η5‐C4H4S)(η6‐p‐cymene)](PF6)2, which was characterized with NMR spectroscopy (1H‐NMR, 13C‐NMR, and 31P‐NMR), Fourier transform infrared spectroscopy, elemental analysis, and cyclic voltammetry. The behavior of this new complex in dimethyl sulfoxide with regard to the amount of absorbed water was investigated by both NMR and cyclic voltammetry; the formation of other species that affected electropolymerization was demonstrated. However, under optimal working conditions (in an anhydrous medium), the complex was successfully immobilized on a platinum electrode via an electro‐oxidation pathway through the thiophene ligand. This generated a highly stable, electroactive polymer film. Its response to the doping–undoping (charge–discharge) and redox processes, added to its high stability, promises important applications for this novel material. Moreover, this opens up the possibility of testing other compounds, such as Ru(η5‐thiophene)(η6‐arene)], that were previously synthesized and reported for their electropolymerization and use as sensors according to their redox properties. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016 , 133, 43559. |
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Keywords: | conducting polymers electrochemistry inorganic polymers |
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