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Communication: Nonadditive dielectric susceptibility spectra of associating liquids.
- Source :
- Journal of Chemical Physics; 2017, Vol. 146 Issue 10, p1-4, 4p, 2 Graphs
- Publication Year :
- 2017
-
Abstract
- Highly unusual linear-response spectra involving contributions from hydrogen-bonded supramolecular processes and from structural relaxations are found in 4-methyl-3-heptanol mixed with 2-ethyl-1-hexylbromide. Although the mean time scales of the underlying relaxations are separated by more than 3 decades, the overall spectra cannot be decomposed into a sum of these processes. This finding challenges the ubiquitous practice of disentangling susceptibility spectra of Debye liquids by adding suitable subspectra. The spectral shape of the studied viscous mixtures is excellently described using the Williams ansatz, here a necessary approach and not as previously considered merely an alternative to additive analyses. [ABSTRACT FROM AUTHOR]
- Subjects :
- SUPRAMOLECULAR chemistry
HYDROGEN bonding
HEPTANOL
METHYL parathion
ADDITIVES
Subjects
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 146
- Issue :
- 10
- Database :
- Complementary Index
- Journal :
- Journal of Chemical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 121818118
- Full Text :
- https://doi.org/10.1063/1.4978228