Electrochemical properties of the solvent SbCl/sub 3/-AlCl/sub 3/-N-(1-BUTYL)pyridinium chloride and electrochemical and spectroelectrochemical studies of the solute 9,10-dimethylanthracene

Conference · Sun May 01 04:00:00 EDT 1983 · Proc. - Electrochem. Soc.; (United States)

OSTI ID:6507638

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

Physical and electrochemical properties were determined for ternary mixtures of SbCl/sub 3/, AlCl/sub 3/ and N-(1-butyl)pyridinium chloride (BPCl) that are liquid at ambient temperatures. Specific conductivities of the compositions (mole %) 60:19:21 (basic) and 60:21:19 (acidic) SbCl/sub 3/-AlCl/sub 3/-BPCl, measured over the temperature range 24 - 100/sup 0/C, varied from 0.00395 to 0.02759 S cm/sup -1/. Viscosities of the 60:21:19 and 60:19:21 melts were 22.8 plus or minus 0.7 and 31.5 plus or minus 0.9 cp, respectively, at 25.1 plus or minus 0.5/sup 0/C. For a potentiometric titration between the compositions 60:18:22 and 60:22:18 with SbCl/sub 3/ fixed at 60 mol %, the potential of the Sb(III)/Sb (0) couple increased by 0.43 V at 27/sup 0/C. Current-overvoltage curves for the oxidation of antimony metal in a 60:21:19 melt at an Sb rod electrode displayed Tafel behavior. The feasibility of performing electrochemical studies in these media was demonstrated using cyclic voltammetry, differential pulse polarography and double potential-step chronocoulometry to elucidate the electrochemical behavior of 9,10-dimethylanthracene (DMA) in the 60:19:21 melt. The solute was reversibly oxidized to its radical cation at an anodic peak potential of +0.50 V relative to the reference electrode SbCl/sub 3/-BPCl(l), sat. SbCl/sub 3//Sb at 27/sup 0/C. Spectroelectrochemical experiments on DMA using an optical multichannel spectrometer over the range 479-984 nm are reported. The spectrum of the DMA radical cation has four bands with the most intense at 678 nm.

• Research Organization: Chemistry Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee
• OSTI ID: 6507638
• Report Number(s): CONF-8305100-
• Conference Information: Journal Name: Proc. - Electrochem. Soc.; (United States) Journal Volume: 84-2
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301* -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
400400 -- Electrochemistry
ALUMINIUM CHLORIDES
ALUMINIUM COMPOUNDS
AMINES
AMMONIUM COMPOUNDS
ANTIMONY CHLORIDES
ANTIMONY COMPOUNDS
AROMATICS
AZINES
CATIONS
CHARGED PARTICLES
CHEMICAL PROPERTIES
CHEMICAL REACTIONS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
CONDENSED AROMATICS
ELECTRICAL PROPERTIES
ELECTROCHEMISTRY
ELECTRODES
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
IONS
MEDIUM TEMPERATURE
MOLTEN SALTS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OVERVOLTAGE
OXIDATION
PHYSICAL PROPERTIES
POTENTIOMETRY
PYRIDINES
PYRIDINIUM COMPOUNDS
QUATERNARY COMPOUNDS
SALTS
SPECTRA
TITRATION