Novel o-Phenylenediseleno Bridged Bis(β-cyclodextrin)s Complexes with Platinum(IV) and Palladium(II) Ions

Yu Liu, Bin Li, Takehiko Wada, Yoshihisa Inoue

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)

Abstract

The novel o-phenylenediseleno bridged bis(cyclodextrin)s and its complexes with platinum(IV) and palladium(II) ions have been synthesized and characterized by elemental analyses, 1H NMR, infrared, and thermal analysis. Fluorescence spectrophotometric titrations have been performed in aqueous buffer solution (pH 7.20) at 25.0°C to give the complex stability constants (Ks) and Gibbs free energy change (-ΔG°) for the 1:1 inclusion complexation of natural β-cyclodextrin, the o-phenylenediseleno bridged bis(cyclodextrin)s 1 and its platinum(IV) complex 2 with 8-Anilino-1-naphthalenesulfonic Acid Ammonium Salt (ANS ammonium). The molecular inclusion ability of ANS ammonium by the three host compounds are discussed from the viewpoints of size/shape-fit concept and the multipoint recognition mechanism.

Original languageEnglish
Pages (from-to)279-285
Number of pages7
JournalSupramolecular Chemistry
Volume10
Issue number4
DOIs
Publication statusPublished - 1999
Externally publishedYes

Keywords

  • ANS ammonium
  • Bridged bis(cyclodextrin)s
  • Inclusion complexation
  • Organoselenium

ASJC Scopus subject areas

  • Chemistry(all)

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