Polymorphism in the Homologous Series of the 2- [4-n-Alkylphenyl]-5- [4-n-alkyloxyphenyl]pyrimidines
- 1 January 1980
- journal article
- research article
- Published by Taylor & Francis in Molecular Crystals and Liquid Crystals
- Vol. 62 (1-2), 1-23
- https://doi.org/10.1080/15421408008084005
Abstract
Several members of the homologous series of 2-[4-n-alkylphenyl]-5-[4-n-alkyloxyphenyl]pyrimidines have been synthesized. The phase transitions were determined by microscopic and calorimetric investigations. The classification of the smectic modifications was done by investigation of the miscibility relations and by texture observations. Besides the nematic phase and smectic phases A and C, smectic phases F, G and H were observed. All the variants of polymorphism observed can be derived from the sequence H G F C A N.Keywords
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