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

Hiromitsu Maeda, Atsuhiro Osuka, Hiroyuki Furuta

    Research output: Contribution to journalArticlepeer-review

    70 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 2004

    All Science Journal Classification (ASJC) codes

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


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