EFFECT OF SOLVENT COMPOSITION ON THE KINETICS OF REACTIONS BETWEEN IONS AND DIPOLAR MOLECULES. PART III

Journal Article · Sun Jan 01 04:00:00 EST 1961 · Journal of the Chemical Society (England) Divided into J. Chem. Soc. A, J. Chem. Soc. B, etc.

DOI:https://doi.org/10.1039/jr9610000226· OSTI ID:4083254

Cavell, E A.S.; Speed, J A

A kinetic study of the exchange of radioactive iodine between sodium iodide and n-butyl iodide was made in a series of mixtures of methyl cyanide and methanol as solvents, with carrier-free sodium radioiodide providing all the iodide ions present initially. The reaction rate falls as the concentration of methanol is increased, amd this reduction in rate is discussed in terms of a specific interaction between iodide ions and methanol molecules. Changes in dielectric constant are small and have been neglected. It was also found, by the use of various phenols in place of methanol, that the capacity of a hydroxylic compound to retard the iodine exchange reaction increases with its strength as an acid. However, the integrated intensity of the infrared absorption band associated with the O - H stretching vibration appears to be a better measure than its acid strength of the capacity of a phenol to retard iodine exchange. Spectroscopic evidence for hydrogen bonding between anions and hydroxylic molecules is discussed briefly. (auth)

• Research Organization: The University, Southampton, Eng.
• NSA Number: NSA-15-010790
• OSTI ID: 4083254
• Journal Information: Journal of the Chemical Society (England) Divided into J. Chem. Soc. A, J. Chem. Soc. B, etc., Journal Name: Journal of the Chemical Society (England) Divided into J. Chem. Soc. A, J. Chem. Soc. B, etc.; ISSN JCSOA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ALKYL RADICALS
ANIONS
BONDING
CHEMICAL REACTIONS
CHEMISTRY
CYANIDES
DIELECTRICS
EFFICIENCY
HYDROGEN
HYDROXIDES
INFRARED RADIATION
IODIDES
IODINE ISOTOPES
IONS
ISOTOPIC EXCHANGE
METHANOL
MOLECULES
ORGANIC ACIDS
PHENOLS
QUALITATIVE ANALYSIS
REACTION KINETICS
SODIUM IODIDES
SOLVENTS
SPECTROSCOPY
VIBRATIONS