Porphyrazines as molecular scaffolds: Peripherycore spin coupling between metal ions of a schiff base porphyrazine

Min Zhao, Charlotte Stern, Anthony G.M. Barrett*, Brian M. Hoffman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

Strong Heisenberg exchange between the core MnIII ion (S=2) and peripheral CuII ion (S=1/2) creates S=3/2 and 5/2 total-spin manifolds in a ClMnIII-complexed porphyrazine (tetraazaporphyrin) to which a CuII-complexed Schiff base is rigidly linked through nitrogen atoms attached to the macrocycle periphery (1). EPR spectroscopy and magnetic susceptibility measurements have been used to characterize these spin manifolds and to determine the exchange-splitting (Δ/kB=23 K) between them.

Original languageEnglish (US)
Pages (from-to)462-465
Number of pages4
JournalAngewandte Chemie - International Edition
Volume42
Issue number4
DOIs
StatePublished - Jan 27 2003

Keywords

  • Copper
  • EPR spectroscopy
  • Macrocyclic ligands
  • Manganese
  • Schiff bases

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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