Ground- and excited-state spectral and redox properties of cadmium(II) texaphyrin

Bhaskar G. Maiya, Anthony Harriman, Jonathan L. Sessler, Gregory Hemmi, Toshiaki Murai, Thomas E. Mallouk

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

Cadmium texaphyrin, [(TXP)Cd]+, a representative of a new family of expanded porphyrins, has an absorption maximum around 760 nm in acetonitrile solution. The first excited triplet state, which is formed with a quantum yield of 0.9, is quenched by O2, via an energy-transfer process, and by aromatic amines, via an electron-transfer reaction. This latter process produces [(TXP)Cd]0, the neutral radical, as characterized by flash photolysis methods, with an overall quantum efficiency of about 60%. The potential of the texaphyrin family as photosensitizers for photodynamic therapy is highlighted.

Original languageEnglish (US)
Pages (from-to)8111-8115
Number of pages5
JournalJournal of physical chemistry
Volume93
Issue number24
DOIs
StatePublished - Jan 1 1989

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physical and Theoretical Chemistry

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