Origin of the complex molecular dynamics in functionalized discotic liquid crystals

M. M. Elmahdy; G. Floudas; M. Mondeshki; H. W. Spiess; X. Dou; K. Müllen

doi:10.1103/PhysRevLett.100.107801

Origin of the complex molecular dynamics in functionalized discotic liquid crystals

M. M. Elmahdy, G. Floudas, M. Mondeshki, H. W. Spiess, X. Dou, K. Müllen

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Abstract

The molecular dynamics of three dipole functionalized hexa-peri- hexabenzocoronenes have been studied using site-specific NMR techniques and dielectric spectroscopy as a function of temperature and pressure. These probes (i) suggest that the thermodynamic state completely controls the dynamic response, (ii) clarify the origin of two dynamic processes associated with the presence of two glass temperatures, and (iii) provide the first phase diagram for substances of this kind.

Original language	English
Article number	107801
Journal	Physical Review Letters
Volume	100
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.100.107801
State	Published - 14 Mar 2008
Externally published	Yes

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Origin of the complex molecular dynamics in functionalized discotic liquid crystals

Abstract

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