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How Do High Pressures Change the Debye Process of 4-methyl-3-heptanol?

How Do High Pressures Change the Debye Process of 4-methyl-3-heptanol?

S Pawlus, M Wikarek, C Gainaru, M Paluch, R Böhmer

J Chem Phys. 2013 Aug 14;139(6):064501.

PMID: 23947865

Abstract:

4-methyl-3-heptanol, a monohydroxy alcohol with a relatively small dielectric Debye process, is studied in wide ranges of temperature (143 K < T < 308 K) and pressure (0.1 MPa < p < 864 MPa). When monitored under isochronous conditions, i.e., focusing on constant relaxation times, as well as under isothermal conditions, the Debye process gains significant intensity upon pressure application. This behavior contrasts with that of the previously studied octanol 2-ethyl-1-hexanol, which features a large Debye process. These experimentally observed, clearly distinguishable pressure evolutions are discussed to reflect differences in the formation of hydrogen-bonded supramolecular structures.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP589822	3-Heptanol		589-82-2	Price

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