Hangman salen platforms containing dibenzofuran scaffolds.

Jenny Y. Yang, Shih Yuan Liu, Ivan V. Korendovych, Elena V. Rybak-Akimova, Daniel G. Nocera

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The synthesis of salen ligands bearing two rigid dibenzofuran spacers functionalized with carboxylic acid and benzoic acid groups completes a series of "Hangman" ligands with the acid functionalities differentially extended across the molecular cleft. Stopped-flow studies show that a high-valent metal oxo intermediate is produced at Hangman platforms when H(2)O(2) is employed as a primary oxidant. The activity of this oxo species in promoting the disproportionation of hydrogen peroxide and olefin epoxidations is discussed in the context of the distance between the acid group and the metal center. The chemistry of the Hangman oxo complexes described here provides a roadmap for water-splitting chemistry.

Original languageEnglish (US)
Pages (from-to)941-949
Number of pages9
JournalChemSusChem
Volume1
Issue number11
DOIs
StatePublished - 2008
Externally publishedYes

ASJC Scopus subject areas

  • Environmental Chemistry
  • Chemical Engineering(all)
  • Materials Science(all)
  • Energy(all)

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