Ionic liquid crystals: synthesis and mesomorphic properties of dimeric 2,4,6-triarylpyrylium tetrafluoroborates
The synthesis of some dimeric pyrylium salts is described. The link between the two cationic parts of the molecule can be flexible or rigid. Surprisingly, the starting dimeric chalcones with a rigid link exhibit monotropic columnar hexagonal phases. Results concerning the spectroscopic and mesomorph...
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| Published in: | Liquid crystals Vol. 27; no. 5; pp. 671 - 676 |
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| Main Authors: | , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Taylor & Francis Group
01-05-2000
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| Online Access: | Get full text |
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| Summary: | The synthesis of some dimeric pyrylium salts is described. The link between the two cationic parts of the molecule can be flexible or rigid. Surprisingly, the starting dimeric chalcones with a rigid link exhibit monotropic columnar hexagonal phases. Results concerning the spectroscopic and mesomorphic properties of the pyrylium salts and the chalcones are given. |
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| ISSN: | 0267-8292 1366-5855 |
| DOI: | 10.1080/026782900202534 |