Origin of the Complex Molecular Dynamics in Functionalized Discotic Liquid Crystals

by: MM Elmahdy, G Floudas, M Mondeshki, HW Spiess, X Dou, K Müllen

Physical Review Letters, Vol. 100, No. 10. (2008)

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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.

@article{citeulike:2767626, 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.}, author = {Elmahdy, M. M. and Floudas, G. and Mondeshki, M. and Spiess, H. W. and Dou, X. and M\"ullen, K. }, citeulike-article-id = {2767626}, doi = {10.1103/PhysRevLett.100.107801}, journal = {Physical Review Letters}, keywords = {2008, glass, liquidcrystal, phase}, number = {10}, posted-at = {2008-05-07 23:56:30}, priority = {2}, publisher = {APS}, title = {Origin of the Complex Molecular Dynamics in Functionalized Discotic Liquid Crystals}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PRLTAO000100000010107801000001\&idtype=cvips\&gifs=yes}, volume = {100}, year = {2008} }

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TY - JOUR ID - citeulike:2767626 TI - Origin of the Complex Molecular Dynamics in Functionalized Discotic Liquid Crystals JF - Physical Review Letters VL - 100 IS - 10 PB - APS N2 - 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. KW - 2008 KW - glass KW - liquidcrystal KW - phase AU - Elmahdy, MM AU - Floudas, G AU - Mondeshki, M AU - Spiess, HW AU - Dou, X AU - M\"ullen, K PY - 2008/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000100000010107801000001&idtype=cvips&gifs=yes ER -

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