Issue 5, 2002

Abstract

Two homologous achiral five-ring mesogens with lateral fluorine substituents on the core and on the outer rings are presented. Both compounds exhibit two B5 phases and the B2 phase. The high-temperature B5 phases possess an antiferroelectric ground state. The low-temperature B5 phase was found to be ferroelectric, which is indicated by the bistable switching. The assignment and characterization of the mesophases is based on XRD measurements, 1H-, 19F-, 13C-NMR and electro-optical measurements.

Graphical abstract: Ferroelectric and antiferroelectric “banana phases” of new fluorinated five-ring bent-core mesogens

Article information

Article type
Paper
Submitted
17 Dec 2001
Accepted
13 Feb 2002
First published
21 Mar 2002

J. Mater. Chem., 2002,12, 1316-1324

Ferroelectric and antiferroelectric “banana phases” of new fluorinated five-ring bent-core mesogens

H. Nádasi, W. Weissflog, A. Eremin, G. Pelzl, S. Diele, B. Das and S. Grande, J. Mater. Chem., 2002, 12, 1316 DOI: 10.1039/B111421B

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