Synthesis and thermal properties of mesomorphic 1,1'-bis[ω-(4'-cyano-4-biphenyloxy)alkyl] ferrocenes |
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| Authors: | J. Bhatt B. M. Fung Kenneth M. Nicholas |
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| Affiliation: | a Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma, U.S.A.b Liquid Crystal Institute, Kent State University, Kent, OH, U.S.A. |
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| Abstract: | A new series of 1,1'-disubstituted ferrocene compounds of the type [(η5-C5H4(CH2)nOC6H4C6H4CN]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. |
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