Abstract
A series of 2-phenylbenzoxazole liquid crystals having intramolecular hydrogen-bonded Schiff's base linkers have been synthesised. All of them exhibit liquid crystalline phase behaviour. They showed only SmC phase transition. The phase is stabilised over a wide temperature range due to the presence of intramolecular H-bonding.
Acknowledgements
We thank DST (New Delhi) and CSIR (New Delhi) for financial assistance. One of us (T.G.) is grateful to CSIR (New Delhi) for his research fellowship.