Study of a tripod-shaped chromophore with a large footprint for the sensitization of TiO2 nano particles

ORGN 342

Elena Galoppini1, Sujatha Thyagarajan2, Aiping Liu2, Gerald J. Meyer3, and Rachel Carlisle3. (1) Rutgers University, NJ, (2) Chemistry Department, Rutgers University, 73 Warren Street, Newark, NJ 07012, (3) Department of Chemistry, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218
Tripodal linkers that bind chromophores to semiconductor nanoparticles (TiO2) are useful to obtain a good control on the distance and orientation of the sensitizer on the surface. Here we describe the synthesis of tripods with large footprints (see figure), and discuss their photophysical properties in solution as well as bound to TiO2 nanoparticles. The role of the footprint size in avoiding aggregation phenomena will be discussed.

 

Materials, Devices, and Switches
1:00 PM-5:00 PM, Tuesday, August 24, 2004 Pennsylvania Convention Center -- 201B, Oral

Division of Organic Chemistry

The 228th ACS National Meeting, in Philadelphia, PA, August 22-26, 2004