New, halogen-bonded mesogens are formed as trimeric complexes of two molecules of alkoxystilbazole and one of 1,4-diiodotetrafluorobenzene. The pure complexes show only monotropic nematic phases, while mixtures show a enantiotropic nematic with a range of up to 11 °C. A possible correlation between nematic phase stability and halogen bond strength is suggested.
Mesogenic, trimeric, halogen-bonded complexes from alkoxystilbazolesand 1,4-diiodotetrafluorobenzene
METRANGOLO, PIERANGELO;RESNATI, GIUSEPPE;TERRANEO, GIANCARLO;
2008-01-01
Abstract
New, halogen-bonded mesogens are formed as trimeric complexes of two molecules of alkoxystilbazole and one of 1,4-diiodotetrafluorobenzene. The pure complexes show only monotropic nematic phases, while mixtures show a enantiotropic nematic with a range of up to 11 °C. A possible correlation between nematic phase stability and halogen bond strength is suggested.File in questo prodotto:
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