Electron and excitation transfer in hetero-supramolecular assemblies and at molecule­nanoparticle interfaces

Piotrowiak, Piotr; Deshayes, Kurt; Romanova, Zinaida S.; Pagba, Cynthia; Hore, Sarmimala; Zordan, Giovanni; Place, Ileana; Farrán, Agnes

doi:10.1351/pac200375081061

Pure Appl. Chem., 2003, Vol. 75, No. 8, pp. 1061-1068

http://dx.doi.org/10.1351/pac200375081061

Electron and excitation transfer in hetero-supramolecular assemblies and at moleculenanoparticle interfaces

Piotr Piotrowiak¹*, Kurt Deshayes², Zinaida S. Romanova³, Cynthia Pagba¹, Sarmimala Hore¹, Giovanni Zordan¹, Ileana Place³ and Agnes Farrán³

¹ Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, USA
² Department of Protein Engineering, Genentech, Inc., 1 DNA Way, South San Francisco, CA 94080, USA
³ Center 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.