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Start Over Author "Mori, Akira" Journal liquid crystals
16 results on '"Mori, Akira"'

16. Bicontinuous cubic phase with the Pn3m space group formed by N,N,N-tris(5-alkoxytroponyl)-1,5,9-triazacyclododecanes.

Author

Mori, Akira, Yamamoto, Emi, Kubo, Kanji, Ujiie, Seiji, Baumeister, Ute, and Tschierske, Carsten

Subjects
*POLYCYCLIC aromatic hydrocarbons, *SPACE groups, *ALKALIES, *MATHEMATICAL crystallography, *CRYSTAL lattices
Abstract

N,N,N-tris(5-alkoxytroponyl)-1,5,9-triazacyclododecanes and their corresponding benzenoids were synthesised to investigate their mesomorphic properties. The troponoids have a bicontinuous cubic phase with a Pn3m space group whereas the benzenoids form a smectic A phase. The thermal stability of the cubic phase of the troponoids is decreased when the length of the alkyl group is increased whereas that of the smectic A phase of the benzenoids behaves reversely. The cubic phase of the troponoid should represent an organisation of the fluid alkyl chains within the interwoven networks whereas the polar azacrown and tropolone units should form the continuum. [ABSTRACT FROM AUTHOR]

Published
2010
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