Gold nanoclusters decorated with bent-core liquid crystals

WCC 17

Vanessa Marx and Torsten Hegmann. Department of Chemistry, University of Manitoba, Winnipeg, MB R3T-2N2, Canada

 

 

The development of nanoparticles covered with organic functional groups has recently become a hot topic in liquid crystal (LC) nanoscience.[1] It is known that the presence of nanoparticles (NPs) dispersed into low molecular mass LCs can result in a striking difference in the optical and electro-optical behaviour of such systems.[2] To enhance our understanding of the unique interactions between LCs and nanoscale materials, we have extended this research to the unique class of bent-core LCs. Bent-core LCs can demonstrate either antiferro- or ferroelectric properties,[3] and hence bent-core LC decorated NPs may have a significant impact on the electro-optical response of LCs used in displays. We report the first synthesis of thiol-terminated bent-core LC compounds, as well as NPs decorated with thiol-terminated bent-cores. This presentation will highlight the successful syntheses of mono- and di-substituted alkyl, alkene, thiol, halogen, thioacetate, and xanthogenate bent-core LC derivatives.

 

 



[1] Cseh, L.; Mehl, G.H. J. Mater. Chem. 2007, 17, 311.

[2] a) Hegmann, T.; Qi, H.; Marx, V.M. J. Inorg. & Organomet. Polym. & Mater. 2007, DOI: 10.1007/s10904-007-9140-5.

   b) Qi, H.; Hegmann, T. J. Mater. Chem. 2006, 16, 4197.

[3] Reddy, R.A.; Tschierske, C. J. Mater. Chem. 2006, 16, 907.