Chronoamperometric study and X-ray analysis of Ru(II)-pdto (1,8-bis-(2-pyridyl)-3,6-dithiaoctane) complexes with substituted 1,10-phenanthrolines |
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| Authors: | Luis Ortiz-Frade,Juan Manrí quez,Ignacio Gonzá lez,Lena Ruiz-Azura,Rafael Moreno-Esparza |
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| Affiliation: | 1. Electrochemistry Department. Centro de Investigación y Desarrollo Tecnológico en Electroquímica S.C. Parque Tecnológico Querétaro, Sanfandila, Pedro de Escobedo, C.P. 76703. Querétaro, Mexico;2. Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, P.O. Box 55-534, México, D.F. 09340, Mexico;3. Departamento de Química Inorgánica, Facultad de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Ciudad Universitaria, México, D.F. 04510, Mexico |
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| Abstract: | ![]()
This work presents cyclic voltammetry and double potential step chronoamperometry experiments corresponding to the electrochemical reduction of the substituted 1,10-phenanthroline ligands in the coordination compounds [Ru(pdto)(1,10-phenanthroline)]Cl2 (1), [Ru(pdto)(5,6-dimethyl-1,10-phenanthroline)]Cl2 (2), [Ru(pdto)(4,7-diphenyl-1,10-phenanthroline)]Cl2 (3), [Ru(pdto)(4,7-dimethyl-1,10-phenanthroline)]Cl2 (4) and [Ru(pdto)(3,4,7,8-tetramethyl-1,10-phenanthroline)]Cl2 (5). These studies were performed in order to evaluate the stability of the electrogenerated chemical species. An ECi mechanism for all the complexes was proposed and the rate constant value (k1) for the chemical coupled reaction was estimated. The stability is discussed in terms of the rate constant value (k1) and the π*-acceptor properties. |
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| Keywords: | Ru(II) complexes boldFont" >pdto complexes Chronoamperometry Substituted 1,10-phenanthroline |
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