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http://hdl.handle.net/2289/1649
Title: | Novel five-ring bent-core compounds exhibiting a transition from the electro-optically nonswitchable to a switchable B7 phase |
Authors: | Umadevi, S. Sadashiva, B.K. |
Issue Date: | 6-Oct-2006 |
Publisher: | American Chemical Society |
Citation: | Chemistry of Materials, 2006, Vol.18 p5186 -5192 |
Abstract: | Two homologous series of achiral five-ring bent-core compounds derived from 2-cyano- or 2-nitro-resorcinol having terminal n-alkyl carboxylate groups have been synthesized and characterized. All the compounds investigated show enantiotropic mesophases. Interestingly, the compounds derived from 2-cyanoresorcinol display two mesophases and the higher temperature mesophase shows unusual electro-optical characteristics. In contrast, the nitro-substituted compounds exhibit only one mesophase, which switches electro-optically. This mesophase and the higher temperature phase exhibited by the cyano-substituted compounds show similar characteristics and have been shown to be the same. These observations are unusual but very interesting and represent the first example of a transition from the electro-optically nonswitchable B7X phase to a switchable B7FE phase. |
Description: | Restricted Access. |
URI: | http://hdl.handle.net/2289/1649 |
ISSN: | 0897-4756 |
Alternative Location: | http://dx.doi.org/10.1021/cm0604209 |
Copyright: | (2006) by American Chemical Society |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
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2006 Chem Mater V18 p5186-5192.pdf Restricted Access | Restricted Access | 714.27 kB | Adobe PDF | View/Open Request a copy |
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