Dendrimeric Antenna Supermolecules with Multistep Directed Energy Transfer

  • Stephen F. Swallen
  • Michael R. Shortreed
  • Zhong-You Shi
  • Weihong Tan
  • Zhifu Xu
  • Chelladuri Devadoss
  • Jeffrey S. Moore
  • Raoul Kopelman


Photoinduced energy transfer in large molecular systems is a vital process in many biological systems. The primary step in these reactions, such as photosynthesis, is a multi-step process of energy flow from a highly absorbing antenna molecule or moiety to a reaction center.1–5 In general, however, this process is energetically disordered, and thus the energy transfer is dependent upon mechanisms such as random walk, thermal activation, exciton percolation, or a combination of these effects.6–8 In contrast, a large, well ordered molecule with organized local electronic excitation states may provide an efficient means of directed intramolecular energy transport. In this paper we examine a unique class of recently synthesized dendrimeric molecules which exhibit such desirable properties.9,10 These represent the largest purely hydrocarbon dendrimers which have been synthesized to date.


Extended Series Intramolecular Energy Transfer Dendrimer Molecule Large Molecular System Exciton Transfer 


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Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • Stephen F. Swallen
    • 1
  • Michael R. Shortreed
    • 1
  • Zhong-You Shi
    • 1
  • Weihong Tan
    • 2
  • Zhifu Xu
    • 3
  • Chelladuri Devadoss
    • 4
  • Jeffrey S. Moore
    • 4
  • Raoul Kopelman
    • 1
  1. 1.Department of ChemistryUniversity of MichiganAnn ArborUSA
  2. 2.Department of ChemistryUniversity of FloridaGainsevilleUSA
  3. 3.PPG IndustriesPittsburghUSA
  4. 4.Department of ChemistryUniversity of IllinoisUrbanaUSA

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