Calamitic nematic liquid crystal phases from Zn II complexes of 5, 15-disubstituted porphyrins
- 1 January 1994
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 18,p. 2089-2090
- https://doi.org/10.1039/c39940002089
Abstract
The liquid crystalline behavious of porphyrins is normally associated with the formation of discotic mesophases, owing to stacking of the large, flat core; by extending the porphyrin along one axis via substitution at the 5 and 15 positions, the disc-like porphyrin can be made to behave as a rod, showing calamitic nematic and smectic A phases at elevated temperatures.Keywords
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