Dielectric breakdown in solids

Budenstein, Paul P.

doi:10.1109/dld.1974.7739011

Cited by 1 publication

(1 citation statement)

References 49 publications

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“…It was obtained that μ z ≈ 0.76, 0.38, 1.04, and 1.44 D for 2E1HOH alcohol, amine, thiol and, 1PH2BOH alcohol, respectively. Herein, it should be noted that the computations were carried out for the most stable conformer of each compound, and dipole moments calculated for 2E1HOH and 2E1HNH 2 were close to the ones determined experimentally. , Moreover, additional DFT computations for dimers of all compounds were performed (the geometry of the optimized structures is shown in Figure S7 in the Supporting Information). In addition, we also depicted the result of calculations carried out in reference by Adrjanowicz et al for the chain- and ring-like associates composed of five molecules for 2E1HOH and 2E1HNH 2 (Figure S8 in the Supporting Information).…”

Section: Resultssupporting

confidence: 58%

Relationship between Nanoscale Supramolecular Structure, Effectiveness of Hydrogen Bonds, and Appearance of Debye Process

et al. 2020

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Infrared and dielectric spectroscopy, X-ray diffraction, and density functional theory computations have been used to study the hydrogen-bonding pattern, molecular dynamics, internal structure, and dipole moment distribution in 2-ethyl-1-hexanol, 2-ethyl-1-hexylamine, 2-ethyl-1-hexanethiol, and 1-phenyl-2-butanol. Dielectric investigations revealed that Kirkwood–Fröhlich correlation factor is much larger or lower than the unity in the vicinity of the glass transition, dependent on the compound. It indicates that change in the functionality of the H-bonding moiety influences the architecture of the supramolecular nanoassemblies. Further thorough experimental and theoretical considerations confirmed this hypothesis. Moreover, it was found that not the strength of hydrogen bonds itself, but the diverse population of nanoassociates, their size, and the spatial organization of the molecules in clusters have a strong influence on the appearance/absence as well as the intensity of the Debye relaxation. The results reported herein are of fundamental interest for a better understanding of the molecular origin of this characteristic process and impact of the molecular architecture, steric hindrance, and functionality on the nanoscale supramolecular assembling in various materials.

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Section: Resultssupporting

confidence: 58%