Anion binding properties of N-confused porphyrins at the peripheral nitrogen

Hiromitsu Maeda, Atsuhiro Osuka, Hiroyuki Furuta

Research output: Contribution to journalArticle

65 Citations (Scopus)


Ni(II), Pd(II), and Cu(II) complexes of N-confused porphyrin (NCP) exhibit anion binding properties through a hydrogen bonding interaction at the peripheral NH of confused pyrrole ring. The binding constants of the tetrakis(pentafluorophenyl)-NCP metal complexes (1-M, M = Ni, Pd, Cu) for various halide anions in CH 2C1 2 increase in the order of F - > Cl - > Br - > I -, respectively. Zwitterionic resonance form of the NCP complexes as well as interactions between halide anions and a pentafluorophenyl group are suggested to be important for efficient anion binding.

Original languageEnglish
Pages (from-to)33-36
Number of pages4
JournalJournal of Inclusion Phenomena
Issue number1-2
Publication statusPublished - Jun 1 2004

All Science Journal Classification (ASJC) codes

  • Food Science
  • Chemistry(all)
  • Condensed Matter Physics

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