Electron and excitation transfer in hetero-supramolecular assemblies and at molecule�nanoparticle interfaces
Piotr Piotrowiak1,**, Kurt Deshayes2, Zinaida
S. Romanova3, Cynthia Pagba1, Sarmimala Hore1,
Giovanni Zordan1, Ileana Place3, and Agnes Farrán3
1Department of Chemistry,
Rutgers University, 73 Warren Street, Newark, NJ 07102, USA; 2Department
of Protein Engineering, Genentech, Inc., 1 DNA Way, South San Francisco,
CA 94080, USA; 3Center for Photochemical Sciences, Bowling
Green State University, Bowling Green, OH 43403, USA
Abstract: Encapsulation of chromophores within Cram-type
hemicarcerands allowed the investigation of fundamental photophysical
phenomena, such as long-range triplet energy transfer, electron transfer,
and the remote heavy atom effect. Furthermore, novel water-soluble hemicarcerands
are being used to develop unique hybrid materials composed of semiconductor
nanoparticles and host–guest assemblies. Photoinduced charge injection
from the “incarcerated” guest into the conduction band of
the semiconductor has been demonstrated.
* Lectures presented at the XIXth IUPAC Symposium on Photochemistry,
Budapest, Hungary, 14�19 July 2002. Other presentations are published
in this issue, pp.999�1090.
**Corresponding author.
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