Electrochemistry in liquid sulfur dioxide. 3. Electrochemical production of new highly oxidized 2,2'-bipyridine complexes of ruthenium and iron

Journal Article · Tue Nov 16 23:00:00 EST 1982 · J. Am. Chem. Soc.; (United States)

DOI:https://doi.org/10.1021/ja00387a036· OSTI ID:6384153

Gaudiello, J G; Sharp, P R; Bard, A J

The electrochemical oxidation of Ru(bpy)/sub 3//sup 2 +/ and Fe(bpy)/sub 3//sup 2 +/ in liquid sulfur dioxide was investigated. Ru(bpy)/sub 3//sup 2 +/ shows two oxidation waves corresponding to the 3+ (1.01 V) and 4+ (2.76 V) forms while Fe(bpy)/sub 3//sup 2 +/ undergoes three oxidations to the 3+ (0.70 V), 4+ (2.92 V), and 5+ (approx.3.09 V) forms. While the 3+ form is stable for both compounds on a coulometric time scale, the higher oxidation states react with solvent to regenerate the 3+ form. The kinetics of this reaction was studied as a function of temperature by cyclic voltammetry, chronocoulometry, and chronoamperometry.

• Research Organization: Univ. of Texas at Austin
• OSTI ID: 6384153
• Journal Information: J. Am. Chem. Soc.; (United States), Journal Name: J. Am. Chem. Soc.; (United States) Vol. 104:23; ISSN JACSA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400400* -- Electrochemistry
ABSORPTION SPECTRA
AZINES
BIPYRIDINES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHEMISTRY
COMPLEXES
ELECTROCHEMISTRY
HETEROCYCLIC COMPOUNDS
IRON COMPLEXES
KINETICS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PYRIDINES
REACTION KINETICS
RUTHENIUM COMPLEXES
SPECTRA
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TRANSITION ELEMENT COMPLEXES
VOLTAMETRY