Vol. 25, No. 11 (2013)
Synthesis and Phase Transition Behaviours of Pyridine Symmetrical Dimers 6155
27
behaviour . Investigation of these factors by experimental or
theoretical means should hopefully lead to a better understanding
of structure-property relationships on the synthesized compounds
in liquid crystals.
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(
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In this paper, we report the synthesis and characterization
of new symmetrical dimers, α,ω-bis-(4-pyridine-4-methylene-
aminoxy) alkanes. The influence of dimer spacer length,
terminal (polar and alkyl chain) groups and core rings on
mesomorphic properties were discussed and compared with
reported dimer liquid crystals. The presence of the pyridine
group renders this system to be suitable components for building
charge transfer-based liquid crystals with an appropriate choice
of acceptor molecules.
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ACKNOWLEDGEMENTS
The authors thank Universiti Tunku Abdul Rahman and
Ministry of Higher Education Malaysia for the financial support
and research facilities.