Synthesis and mesomorphic properties of new alkenyltolans

Autor:	Povilas Adomenas, Antanas Gleiznys, Kazutoshi Miyazawa, Ona Adomeniene
Rok vydání:	1998
Předmět:	Materials science Birefringence Magnesium chemistry.chemical_element Atmospheric temperature range Chloride chemistry.chemical_compound chemistry Liquid crystal Bromide Polymer chemistry medicine Molecule Organic chemistry medicine.drug
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.301292
Popis:	A number of 1-(4-substituted phenyl)-2-(4-(alken-3-yl- 1)phenyl)ethynes have been synthesized by coupling of 4- substituted phenylacetylenes with new intermediates 1-(4'- iodophenyl)-alkenes-3, which were prepared by a reaction of either allylmagnesium chloride or crotylmagnesium chloride or crotylmagnesium chloride with 4-iodobenzyl bromide. The resulting compounds form mesophases - predominantly nematic - in a wide temperature range and enhance optical birefringence of nematic materials.© (1998) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d3bf2d80c66050fae6a3097424f3c869 https://doi.org/10.1117/12.301292 Zobrazit plný text záznamu