Electrochemical properties of the solvent SbCl/sub 3/-AlCl/sub 3/-N(1-butyl)pyridinium chloride and electrochemical and spectroelectrochemical studies of arene solutes

Journal Article · Sun Jul 01 00:00:00 EDT 1984 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2115918· OSTI ID:6211140

Chapman, D M; Mamantov, G; Petrovic, C; Smith, G P; Sorlie, M

Physical and electrochemical properties are reported for SbCl/sub 3/-AlCl/sub 3/-N-(1-butyl)pyridinium chloride (BPCl) mixtures that are liquid at ambient temperatures, and studies of the electrogeneration and open-circuit decay of some arene radical cations, both in this medium and in SbCl/sub 3/-KCl at elevated temperatures, are described. Specific conductivities, densities, and viscosities of the compositions (m/o (mole percent)) 60:19:21 (basic) and 60:21:19 (acidic) SbCl/sub 3/-AlCl/sub 3/-BPCl were measured over the temperature range 24/sup 0/-100/sup 0/C. For a potentiometric titration between the compositions 60:18:22 and 60:22:18 with SbCl/sub 3/ fixed at 60 m/o, the potential of the Sb(III)/Sb(0) couple increased by 0.43V at 27/sup 0/C. Electrochemical studies showed that perylene (Per), 9,10-dimethylanthracene (DMA), and 9,10diphenylanthracene (DPA) can be reversibly oxidized to their radical cations in a 60:19:21 melt, whereas the oxidation of anthracene (Ant) is irreversible. Spectroelectrochemical studies showed that Per radical cations were stable in this melt, those of DPA decayed very slowly, those of DMA decayed somewhat faster, and those of Ant were too transient to be observed optically. Similar degrees of stability were found for these radical cations in SbCl/sub 3/ containing 1 M KCl at elevated temperatures, and transient spectra of Ant radical cations were observed in this solvent.

• Research Organization: Oak Ridge National Laboratory, Chemistry Division, Oak Ridge, Tennessee
• OSTI ID: 6211140
• Journal Information: J. Electrochem. Soc.; (United States), Vol. 131:7
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
SOLVENTS
ELECTROCHEMISTRY
ALUMINIUM CHLORIDES
ANTIMONY CHLORIDES
CHEMICAL ANALYSIS
CHEMICAL PROPERTIES
DENSITY
ELECTRICAL PROPERTIES
NITROGEN
OXIDATION
PERYLENE
POTENTIOMETRY
PYRIDINIUM COMPOUNDS
SPECTRA
VISCOSITY
ALUMINIUM COMPOUNDS
AMINES
AMMONIUM COMPOUNDS
ANTIMONY COMPOUNDS
AROMATICS
AZINES
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
CONDENSED AROMATICS
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
PYRIDINES
QUATERNARY COMPOUNDS
TITRATION
400400* - Electrochemistry