Electron transfer applications of nanostructured supramolecules

Francis D'Souza 

Wichita State University, Department of Chemistry, 1845, Fairmount, Wichita, KS 67260-0051, United States

Abstract

Utilization of self-assembly methods to build exotic nanostructured supramolecules of well-defined structure and topology, and to be capable of undergoing specific functions such as electron transfer, ion or molecule recognition, bio-mimicry, catalysis, sensing, and self-replication is one of the main themes of modern chemistry. Several fascinating supramolecular structures of few nanometers size have been constructed using a variety of self-assembly approaches, and some of them have been shown to perform one or more above mentioned functions. Our interest in this area of research has been to self-assemble metallotetrapyrrole macrocycles to electron acceptors like quinone and/or fullerene in solution and at surfaces for probing their electron transfer, catalytic and sensor applications. The present tutorial talk will discuss some of the recently developed self-assembly methods in our laboratory for porphyrin-quinone and porphyrin-fullerene conjugate formation. Electron transfer in solution and at surfaces originating from these donor-acceptor conjugates will be discussed. Chemosensor applications of these novel supramolecules especially to detect neutral analytes will also be discussed.

 

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Presentation: Keynote lecture at SMCBS'2005 Workshop, by Francis D'Souza
See On-line Journal of SMCBS'2005 Workshop

Submitted: 2005-08-18 15:33
Revised:   2009-06-07 00:44