Mahadeva, J. and Umesha, K. B. and Rai, K. M. Lokanatha and Nagappa (2009) Synthesis and characterization of mesogenic 1,3,4-oxadiazole derivatives. Molecular Crystals and Liquid Crystals, 509. pp. 1016-1024. ISSN 1542-1406
Full text not available from this repository.Abstract
A synthesis of homologous series of mesogenic 2-amino-5-alkkloxyphenyl-1,3,4-oxadiazoles were prepared by the oxidative cyclisation of alkyloxybenzaldehyde semicarbozones (4) using chloramines-T (CAT) as osidate via intramolecular cycloaddition reaction. The reaction proceeds in better yield (75-85%) giving the product as solid with low melting points. The optical texture studies have been carried out using Leitz polarizing microscope to identify the liquid crystalline phases at different temperatures and it is found that the synthesized compounds exhibit nematic (N), smectic C (Sm C), smectic I (Sm I) and smectic G (Sm G) phases, sequentially at different temperatures.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | homologous series; mesogenic; synthesis |
| Subjects: | C Chemical Science > Chemistry D Physical Science > Physics |
| Divisions: | Department of > Chemistry Department of > Physics Yuvaraj college > Chemistry |
| Depositing User: | Users 19 not found. |
| Date Deposited: | 30 Aug 2019 10:21 |
| Last Modified: | 13 Jan 2023 10:47 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/7390 |
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