Dielectric Study on Some Solid Complexes: Molecular Motion in the Isomorphous High-temperature Forms

Autor:	S. Terada, Yoshio Matsunaga
Rok vydání:	2002
Předmět:	Permittivity Chemistry Stereochemistry Transition temperature Relative permittivity General Chemistry Dielectric Condensed Matter Physics Polarization (waves) Acceptor Molecular physics Dipole Electric field General Materials Science
Zdroj:	Molecular Crystals and Liquid Crystals. 381:163-168
ISSN:	1563-5287 1542-1406
DOI:	10.1080/713738739
Popis:	The relative permittivity of pyrene-2,4-dinitrofluorobenzene, -2,4-dinitrochloro-benzene, -2,4-dinitrotoluene, -2,4-dinitrophenol complexes, and fluoranthene-2,4-dinitrophenol complex increases abruptly upon the polymorphic transition. The molar polarization measured below the transition temperature agrees with the molar refraction except for the second complex which shows a marked positive deviation. The dipole moment of the acceptor molecules in the high-temperature form was calculated on the assumption that the rotational freedom around the axis perpendicular to the ring plane gives rise to the orientation in an externally applied electric field and was found in good accordance with the literature or estimated value.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3d6885177d956a3ac84b17b67dc55782 https://doi.org/10.1080/713738739 Zobrazit plný text záznamu Plný text ve formátu PDF