2026-04-19T00:46:26Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/111162025-12-12T01:05:26Zcom_10259_3844com_10259_5086com_10259_2604com_10259_5822col_10259_3845col_10259_5823

López Palacios, Jesús Colina Santamaría, Álvaro Heras Vidaurre, Aránzazu Ruiz Fernández, Virginia Fuente, Luis 2025-12-11T08:18:31Z 2025-12-11T08:18:31Z 2001-06 0003-2700 https://hdl.handle.net/10259/11116 10.1021/ac0014459 1520-6882 A new methodology is presented to offer the possibility of simultaneously obtaining two different spectroscopic signals in a single spectroelectrochemical experiment. Taking the plane of the electrode surface as a spatial reference, normal-beam and parallel-beam UV−vis absorbance signals are jointly analyzed, revealing important experimental differences between the two kinds of signals. Two different chemical systems are selected to show the possibilities of the bidimensional spectroelectrochemistry:  a simple diffusive process and an adsorptive electrode reaction. Comparative results show clearly that the two kinds of spectroscopic signals, both normal and parallel to the electrode surface, have to be used together in the study of any electrode reaction scheme. Support of the DGICYT (PB93-0677) and Junta de Castilla y León (BU11/98) is gratefully acknowledged. We thank Prof. Renato Seeber of the Modena University (Italy) for the synthesis of the dimers mentioned above. application/pdf eng American Chemical Society Analytical Chemistry. 2001, V. 73, n. 13, p. 2883–2889 https://doi.org/10.1021/ac0014459 Spectroelectrochemistry Diffusion layer Adsorption Electropolymerization Optically transparent electrodes Long-pathway thin layer cells Espectroscopia Electroquímica Spectrum analysis Electrochemistry Bidimensional Spectroelectrochemistry info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/openAccess Analytical Chemistry 73 13 2883 2889