Doubly N-confused hexaphyrin: A novel aromatic expanded porphyrin that complexes bis-metals in the core

Alagar Srinivasan, Tomoya Ishizuka, Atsuhiro Osuka, Hiroyuki Furuta

Research output: Contribution to journalArticlepeer-review

114 Citations (Scopus)

Abstract

Meso-hexakis(pentafluorophenyl)-substituted doubly N-confused hexaphyrins and their metal complexes were synthesized for the first time, and the structures were elucidated by X-ray single-crystal analyses. The free base form of oxidized hexaphyrin (5) had two preorganized N3O pockets in the macrocyclic core, where a hydrogen-bonding network was formed to keep the molecule planar (the mean plane deviation is 0.054 Å). The formation of a planar bis-Cu(II) complex was confirmed by UV/vis, magnetic susceptibility measurements, and X-ray crystallography. The bis-Ni(II) complex (7), on the other hand, was distored from planarity, but it changed to the planar structure upon solvent (acetonitrile) coordination as judged by the observation of a sharp Soret-like band in absorption spectra and the X-ray structures of the complexes.

Original languageEnglish
Pages (from-to)878-879
Number of pages2
JournalJournal of the American Chemical Society
Volume125
Issue number4
DOIs
Publication statusPublished - Jan 29 2003

All Science Journal Classification (ASJC) codes

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

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