The theory of orientation polarization and dielectric relaxation was developed by P. Debye
more than 100 years ago. It is based on approximating a molecule by a sphere having one or more
dipole moments. By that the detailed intra- and intermolecular interactions are explicitly not taken
into consideration. In this article, the principal limitations of the Debye approximation are discussed.
Taking advantage of the molecular specificity of the infrared (IR) spectral range, measurements of the
specific IR absorption of the stretching vibration (OH) (at 3370 cm1) and the asymmetric as(CH2)
(at 2862.9 cm1) are performed in dependence on the frequency and the strength of external electric
fields and at varying temperature. The observed effects are interpreted as caused by orientation
polarization of the OH and the adjacent CH2 moieties.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa:de:qucosa:89086 |
| Date | 17 January 2024 |
| Creators | Kremer, Friedrich, Kiprop Kipnusu, Wycliffe, Fränzl, Martin |
| Publisher | MDPI |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, doc-type:article, info:eu-repo/semantics/article, doc-type:Text |
| Rights | info:eu-repo/semantics/openAccess |
| Relation | 8254 |
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