Unique Fluorescence Behavior of Rhodamine B upon Inclusion Complexation with Novel Bis(β-cyclodextrin-6-yl) 2,2′-Bipyridine-4,4′-dicarboxylate

Yu Liu, Yong Chen, Shuang Xi Liu, Xu Dong Guan, Takehiko Wada, Yoshihisa Inoue

Research output: Contribution to journalArticle

Abstract

(matrix presented) Newly synthesized bis(β-cyclodextrin-6-yl) 2,2′-bipyridine-4,4′-dicarboxylate was found to induce an unusual fluorescence enhancement of Rhodamine B (RhB) upon complexation This effect is attributable to the equilibium shift of RhB to the highly fluorescent carboxylate ion form, which is induced by the cooperative binding by two appropriately preorganized cyclodextrin units in the bis(β-cyclodextrin). This sandwich complexation behavior was investigated by means of the fluorescence and 2D NMR spectroscopy.

Original languageEnglish (US)
Pages (from-to)1657-1660
Number of pages4
JournalOrganic Letters
Volume3
Issue number11
DOIs
StatePublished - May 31 2001
Externally publishedYes

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry

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