Photoinduced electron and energy transfer processes between a ruthenium moiety and a conducting polymer

ANYL 450

Lynn Dennany, lynn.dennany2@mail.dcu.ie1, Emmet J. O'Reilly, emmet.oreilly2@mail.dcu.ie1, Peter C. Innis2, Gordon Wallace, gwallace@uow.edu.au3, and Robert J. Forster, robert.forster@dcu.ie1. (1) National Center for Sensor Research, Dublin City University, Collins Avenue, Glasnevin, Dublin 9, Ireland, (2) ARC Centre of Excellence for Electromaterials Science and the Intelligent Polymer Research Institute, University of Wollongong, Wollongong, 2522, Australia, (3) Intelligent Polymer Research Institute, University of Wollongong, Northfields Avenue, NSW 2522, Wollongong, Australia
Ruthenium bipyridyl complexes are of interest due to applications in areas such as solar energy conversion, and DNA sensors. Recently it has been shown that electrochemiluminescent signals could be obtained from the reaction of a ruthenium metallopolymer with the DNA base guanine. In order to develop a sensor based on this reaction, it is necessary to understand the exact nature of the mechanism for the production of the ECL signal. Several issues are essential for the production of rapidly responding sensors based on the ability of Ru3+ centres immobilised to be regenerated. The addition of an inherently conducting polymer to enhance these properties is discussed. Poly(2-methoxyaniline-5-sulfonic acid) (PMAS) is the conducting polymer utilised within this contribution. The electrochemical and photophysical properties of composite films containing a ruthenium metal center and this conducting polymer are examined in the hopes of improving the current ECL sensor designs.
 

Analytical Approaches
1:30 PM-3:50 PM, Thursday, August 23, 2007 BCEC -- 104B, Oral

Division of Analytical Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007