Molecular association of pentanols in n-heptane V: Electro-dilatometric effect

✍ Scribed by Manit Rappon; Richard M. Johns

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 674 KB
• Volume: 80
• Category: Article
• ISSN: 0167-7322
• DOI: 10.1016/s0167-7322(98)00015-4

✦ Synopsis

Electro-dilatometry (ED) is a new technique which deals with the study of the impacts of high electric fields on the volume of liquids. It is very sensitive to hydrogen-bonded liquids and it has been used to study the changes in the volume of binary mixtures of a series of pentanols with n-heptane at 293 K.

The relative volume changes are positive for all pentanols, i.e. the volume increases in the presence of the field, with the magnitude of the changes arranged in order of decreasing order from 2-pentanol, 3-pentanol, l-pentanol and tpentanol. The major differences in relative volume change are discussed in terms ofintra-and inter-chain steric interactions of the multimers. ED should have potential applications in several areas of chemistry in which hydrogen-bonding is involved, especially in supramolecular chemistry.