Ultrafast photoinduced electron transfer reactions in supramolecular arrays

From charge separation and storage to molecular switches

Michael R Wasielewski, Michael P. O'Neil, David Gosztola, Mark P. Niemczyk, Walter A. Svec

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Photochemical electron transfer reactions on a picosecond time scale have been studied in two covalently-linked donor-acceptor systems. The first molecule is a chlorophyll-porphyrin-quinone triad that closely mimics photosynthetic charge separation by undergoing picosecond electron transfer in low temperature glasses to yield a radical ion pair that lives for 2 ms and exhibits spin-polarization. The second molecule is an electron donor-acceptor-donor molecule, consisting of two porphyrin donors rigidly attached to opposite ends of the two-electron acceptor N,N’-diphenyl-3,4,9,10-perylenebis(dicarboximide). This molecule acts as a light intensity dependent molecular switch on a picosecond time scale.

Original languageEnglish
Pages (from-to)1319-1325
Number of pages7
JournalPure and Applied Chemistry
Volume64
Issue number9
DOIs
Publication statusPublished - Jan 1 1992

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Switches
Molecules
Electrons
Porphyrins
Spin polarization
Chlorophyll
Ions
Glass
Temperature

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Ultrafast photoinduced electron transfer reactions in supramolecular arrays : From charge separation and storage to molecular switches. / Wasielewski, Michael R; O'Neil, Michael P.; Gosztola, David; Niemczyk, Mark P.; Svec, Walter A.

In: Pure and Applied Chemistry, Vol. 64, No. 9, 01.01.1992, p. 1319-1325.

Research output: Contribution to journalArticle

Wasielewski, Michael R ; O'Neil, Michael P. ; Gosztola, David ; Niemczyk, Mark P. ; Svec, Walter A. / Ultrafast photoinduced electron transfer reactions in supramolecular arrays : From charge separation and storage to molecular switches. In: Pure and Applied Chemistry. 1992 ; Vol. 64, No. 9. pp. 1319-1325.
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