Chelation-enhanced circular dichroism of tripodal bisporphyrin ligands

Andrea E. Holmes, Debasis Das, James W. Canary

Research output: Contribution to journalArticlepeer-review


A chiral tripodal ligand readily prepared from primary amines that contains two monosubstituted tetraphenylporphyrin (TPP) moieties is described. Complexation with Cu(II) in the presence of NH4SCN gives a fully metalated porphyrin and tripodal ligand complex. The free ligand shows a weak circular dichroism (CD) signal, but metalation gives a strong exciton-coupled CD spectrum. Reduction of the Cu(II) complex results in loss of CD signal.

Original languageEnglish (US)
Pages (from-to)1506-1507
Number of pages2
JournalJournal of the American Chemical Society
Issue number6
StatePublished - Feb 14 2007

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry


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