Article
A Cyclic Voltammetry Experiment Illustrating Redox Potentials, Equilibrium Constants, and Substitution Reactions in Coordination Chemistry
Purchase the full-text
- PDF/HTML,
figures/images,
references and tables,
(where available)
Abstract
We report a cyclic voltammetry experiment focusing on the [RuIII(EDTA)(H2O)]- complex and its equilibrium reaction with dimethyl sulfoxide (DMSO) in aqueous solution, yielding the [RuIII(EDTA)(κS-DMSO)]- complex. From the electrochemistry data, the formation constants for the [RuIII(EDTA)(κS-DMSO)]- and [RuII(EDTA)(κS-DMSO)]2- complexes were calculated as 2.0 mol-1 dm3 and 2.7 x 109 mol-1 dm3, respectively. The results illustrate the kinetic lability of the ruthenium(III)-EDTA complexes and the role of backbonding stabilization in ruthenium(II)-DMSO complexes. The experiment has been successfully performed in a Coordination Chemistry course, exploiting fundamental aspects of metal complexes and the applications of that important electrochemical technique.
Keywords (Audience):
Upper-Division UndergraduateKeywords (Domain):
Laboratory InstructionKeywords (Pedagogy):
Hands-On Learning / ManipulativesKeywords (Subject):
Coordination CompoundsCiting Articles
Citation data is made available by participants in CrossRef's Cited-by Linking service. For a more comprehensive list of citations to this article, users are encouraged to perform a search in SciFinder.
This article has been cited by 3 ACS Journal articles (3 most recent appear below).

The Use of Cyclic Voltammetry To Probe the Passivation of Electrode Surfaces by Well-Ordered Self-Assembly and Langmuir–Blodgett Films. An Advanced Undergraduate Laboratory Experiment in Surface Science and Nanomaterials Chemistry
Ana Villares , Gorka Pera and Ignacio Giner , Pilar Cea and María C. López , Santiago MartínJournal of Chemical Education2009 86 (6), 723The Use of Cyclic Voltammetry To Probe the Passivation of Electrode Surfaces by Well-Ordered Self-Assembly and Langmuir–Blodgett Films. An Advanced Undergraduate Laboratory Experiment in Surface Science and Nanomaterials Chemistry
Ana Villares , Gorka Pera and Ignacio Giner , Pilar Cea and María C. López , Santiago MartínJournal of Chemical Education2009 86 (6), 723An advanced undergraduate laboratory experiment is described in which the students use cyclic voltammetry (CV) as an electrochemical tool to probe the passivation of electrode surfaces covered by well-ordered self-assembly and Langmuir–Blodgett films. ...

Gold Electrodes Modified with Self-Assembled Monolayers for Measuring L-Ascorbic Acid: An Undergraduate Analytical Chemistry Laboratory Experiment
Takashi Ito , D. M. Neluni T. Perera and Shinobu NagasakaJournal of Chemical Education2008 85 (8), 1112Gold Electrodes Modified with Self-Assembled Monolayers for Measuring L-Ascorbic Acid: An Undergraduate Analytical Chemistry Laboratory Experiment
Takashi Ito , D. M. Neluni T. Perera and Shinobu NagasakaJournal of Chemical Education2008 85 (8), 1112This article describes an undergraduate electrochemistry laboratory experiment in which the students measure the L-ascorbic acid content of a real sample. Gold electrodes modified with self-assembled monolayers (SAMs) of thioctic acid and cysteamine are ...

A Reliable Homemade Electrode Based on Glassy Polymeric Carbon
Marcello G. Rodrigues and Robert L. Zimmerman , André L. Santos , Regina M. Takeuchi and Herenilton P. OliveiraJournal of Chemical Education2004 81 (6), 842A Reliable Homemade Electrode Based on Glassy Polymeric Carbon
Marcello G. Rodrigues and Robert L. Zimmerman , André L. Santos , Regina M. Takeuchi and Herenilton P. OliveiraJournal of Chemical Education2004 81 (6), 842The production of glassy polymeric carbon (GPC) through the thermal treatment of a phenolic resin is described. The pyrolysis process has been investigated by Fourier-transform infrared spectroscopy and powder X-ray diffraction. The final material is a ...
Tools
-
Add to Favorites
-
Download Citation
-
Email a Colleague -
Permalink
Order Reprints
Rights & Permissions
Citation Alerts
History
- Received: August 03, 2009
Cart
ACS
Network






