Self-assembly via 'two-point' binding of a zinc porphyrin dimer to a bis pyridine functionalized fullerene: Singlet emission studies

Francis D'Souza, Suresh Gadde, Melvin E. Zandler, Mitsunari Itou, Yasuyuki Araki, Osamu Ito

Research output: Contribution to conferencePaperpeer-review

Abstract

A stable, self-assembled supramolecular triad was assembled via a 'two-point' axial ligand coordination approach using a covalently linked zinc porphyrin dimer and fulleropyrrolidine functionalized with two pyridine entities. The geometry and electronic structure of the triad was established from spectroscopic and ab initio B3LYP/3-21G(*) calculations. Preliminary steady-state and time-resolved fluorescence studies revealed efficient quenching suggesting the occurrence of light induced electron transfer from singlet excited zinc porphyrin dimer to the axially bound fullerene moiety.

Original languageEnglish
Pages46-50
Number of pages5
Publication statusPublished - 2004 Dec 1
EventECS Annual Spring Meeting -Fullerenes and Nanotubes: Materials for the New Chemical Frontier - International Symposium on Fullerenes, Nanotubes, and Carbon Nanoclusters - San Antonio, TX, United States
Duration: 2004 May 92004 May 13

Other

OtherECS Annual Spring Meeting -Fullerenes and Nanotubes: Materials for the New Chemical Frontier - International Symposium on Fullerenes, Nanotubes, and Carbon Nanoclusters
CountryUnited States
CitySan Antonio, TX
Period04/5/904/5/13

Keywords

  • Axial ligation
  • Charge separation
  • Photoinduced electron transfer
  • Quantum yield
  • Supramolecular porphyrin-fullerene conjugate

ASJC Scopus subject areas

  • Engineering(all)

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