Static Dielectric Constants and Kirkwood Correlation Factor of the Binary Mixtures of N-Methylformamide with Formamide, N,N-Dimethylformamide and N,N-Dimethylacetamide

Static dielectric constant values of the binary mixtures of N-methylformamide with formamide, N,N-dimethylformamide and N,N-dimethylacetamide have been measured in the whole composition range at 303 K. The Kirkwood correlation factor values of the amide–amide mixtures were determined from the measur...

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Bibliographic Details
Published in:Journal of solution chemistry 2009-06, Vol.38 (6), p.763-769
Main Authors: Sengwa, R. J., Khatri, Vinita, Sankhla, Sonu
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Exact sciences and technology
General and physical chemistry
Geochemistry
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Oceanography
Physical Chemistry
Solutions
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Summary:Static dielectric constant values of the binary mixtures of N-methylformamide with formamide, N,N-dimethylformamide and N,N-dimethylacetamide have been measured in the whole composition range at 303 K. The Kirkwood correlation factor values of the amide–amide mixtures were determined from the measured values of the static dielectric constant and high-frequency limit dielectric constant. The evaluated values of the excess dielectric constant and deviation in the Kirkwood correlation factor infer that deviations of their mixture values occur from the mole-fraction mixture law. Results confirm that there are strong hydrogen-bond interactions between unlike molecules of amide–amide mixtures and that 1:1 complexes are formed.
ISSN:0095-9782
1572-8927
DOI:10.1007/s10953-009-9408-1