Synthesis and mesomorphic properties of a new chiral series with a heterocycle in the molecular core

Autor:	J. C. Rouillon, J. P. Marcerou, C. Da Cruz, H. T. Nguyen
Rok vydání:	2003
Předmět:	Homologous series chemistry.chemical_compound Crystallography Materials science Polymorphism (materials science) chemistry Liquid crystal Organic chemistry General Materials Science General Chemistry Condensed Matter Physics
Zdroj:	Liquid Crystals. 30:1175-1179
ISSN:	1366-5855 0267-8292
Popis:	We report a number of different homologous series with a heterocycle incorporated in the molecular core near the chiral chain. Two of these series differ in the type of chiral chain, -CH*(CH3)C6H13 or -CH*(CH3)-CO2-C4H9. Their properties are compared and found to show completely different polymorphism. The first series exhibits only SmC* and SmA phases whereas the second possesses TGB, N* and BP phases. The mesomorphic properties were studied by optical microscopy, DSC and electro-optical measurements. The effect of substitution of the phenyl ring near the chiral chain by a heterocycle is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0d7597b0857a2b7ff9969bef3804379d https://doi.org/10.1080/0267829031000136075 Zobrazit plný text záznamu