Synthesis and thermal properties of mesomorphic 1,1′-bis[ω-(4′-cyano-4-biphenyloxy)alkyl] ferrocenes
- 1 August 1992
- journal article
- research article
- Published by Taylor & Francis in Liquid Crystals
- Vol. 12 (2) , 263-272
- https://doi.org/10.1080/02678299208030396
Abstract
A new series of 1,1′-disubstituted ferrocene compounds of the type [(η5-C5H4(CH2) n OC6H4C6H4CN]2Fe (3a–d, n = 5, 6, 8, 11) incorporating a variable length alkyloxy cyanobiphenyl unit has been prepared and their mesomorphic properties have been investigated. Compounds 3b, c and d exhibit a thermotropic smectic C phase and 3c also exhibits a monotropic smectic A phase over a fairly wide range near ambient temperature.Keywords
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