Self-assembled via axial coordination magnesium porphyrin-imidazole appended fullerene dyad: Spectroscopic, electrochemical, computational, and photochemical studies

Francis D'Souza, Mohamed E. El-Khouly, Suresh Gadde, Amy L. McCarty, Paul A. Karr, Melvin E. Zandler, Yasuyaki Araki, Osamu Ito

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

The investigation of spectroscopic, redox, and electron transfer reaction of a self-assembled donor-acceptor dyad, formed by axial coordination of magnesium meso-tetraphenylporphyrin (MgTPP) and fulleropyrrolidine with an imidazole coordinating ligand (C 60Im), was discussed. The geometric and electronic structures of the dyads were probed. The majority of the highest occupied frontier molecular orbital (HOMO) was found to be located on the MgTPP entity, while the lowest unoccupied frontier molecular orbital (LUMO) was found to be on the fullerene entity. Redox titrations involving MgTPP and C 60Im allowed accurate determination of the oxidation and reduction potentials of the donor and acceptor entities in supramolecular complex.

Original languageEnglish
Pages (from-to)10107-10114
Number of pages8
JournalJournal of Physical Chemistry B
Volume109
Issue number20
DOIs
Publication statusPublished - 2005 May 26

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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