Fine-tuning of liquid crystals with carborane and fluorine substitution

ORGN 53

Kristin L. Glab, kristin.l.glab@vanderbilt.edu1, Piotr Kaszynski, piotr.kaszynski@vanderbilt.edu1, Wiktor Piekec2, Adam Januszko1, Kaushik Patel1, Po-Chih Chen1, Jerzy Dziaduszek3, Witold Drzewinski3, and Georg H. Mehl, g.h.mehl@hull.ac.uk4. (1) Department of Chemistry and Center for Structural Biology, Vanderbilt University, Nashville, TN 37235, (2) Military University of Technology, Warsaw, Poland, (3) Military Technical University, Warsaw, Poland, (4) Department of Chemistry, University of Hull, Cottingham Road, Hull, HU67RX
The unusual properties of liquid crystals have been exploited for imaging, display, and device applications. Judicious choice of molecular structure allows manipulation of thermal, dielectric, optical, and mechanical properties to meet the increasingly stringent demands of existing and emerging liquid crystal technologies. In this context, we have been investigating structural effects in nematic materials with negative dielectric anisotropy (series 1) and smectic materials with high tilt angle (series 2). In both series of compounds, we analyze the effect of partial fluorination and introduction of carborane ring on thermal, dielectric, and optical properties of pure mesogenic materials and their binary mixtures.

 

Materials, Devices, and Switches
8:00 AM-12:00 PM, Sunday, 10 September 2006 Moscone Center -- Room 132, Oral

Division of Organic Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006