Studies of intramolecular energy transfer through cofacially stacked polyfluorene spacers

ORGN 446

Sameh H Abdelwhaed, sameh.abdelwhaed@mu.edu, Erica Jean Kopatz, erica.kopatz@mu.edu, and Rajendra Rathore, rajendra.rathore@marquette.edu. Department of Chemistry, Marquette University, 535 N 14th Street, PO Box 1881, Milwaukee, WI 53201
Intramolecular interactions between aromatic rings via pi-stacking are at the origin of many phenomena of organic material science and biological chemistry including the electron transport in DNA through stacked pi-bases. We have recently discovered multi-layered pi-stacked polyfluorenes in which the van der Waals contact between the cofacially-oriented fluorene moieties allows effective electronic coupling amongst them. Herein we will report the utilization of these polyfluorene spacers in donor–spacer–acceptor (BP-Fn-NAP) systems for the study of energy transport through stacked pi-systems that may be highly relevant to the understanding of the (controversial) electron-transport phenomenon observed in DNA through pi-stacked bases.

 

New Reactions, Methodology, Total Synthesis, Physical Organic Chemistry
8:00 PM-10:00 PM, Tuesday, 15 March 2005 Convention Center -- Sails Pavilion, Poster

Division of Organic Chemistry

The 229th ACS National Meeting, in San Diego, CA, March 13-17, 2005