Photoinduced electron transfer in supramolecular assemblies of transition metal complexes

Itamar Willner, Evgeny Kaganer, Ernesto Joselevich, Heinz Dürr, Elke David, Maxwell J. Günter, Martin R. Johnston

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

Photoinduced electron transfer in supramolecular assemblies consisting of π-donor dialkoxyarene-functionalized photosensitizers and bipyridinium electron acceptors is examined. The photosensitizers include Ru(II)-tris-bipyridine complexes tethered by multi-branch one- shell and two-shell dialkoxybenzene π-donor sites or a Zn(II)-porphyrin capped by a dialkoxybenzene receptor site. The photosensitizer/electron-acceptor supramolecular complexes behave as non-covalent diads and polyads. Effective internal electron transfer quenching within the supramolecular assemblies proceeds. A quantitative model that accounts for the photoinduced electron transfer in the systems is formulated.

Original languageEnglish
Pages (from-to)261-285
Number of pages25
JournalCoordination Chemistry Reviews
Volume171
Issue number1
DOIs
Publication statusPublished - Apr 1998
Externally publishedYes

Keywords

  • Donor-acceptor complexes
  • Photo-induced electron transfer
  • Photosensitizers
  • Polypyridines
  • Ru(II-complexes)
  • Supramolecular photochemistry

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