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A novel rhodamine-based thiacalix[4]arene fluorescent sensor for Fe and Cr

Journal of Inclusion Phenomena and Macrocyclic Chemistry, ISSN: 0923-0750, Vol: 68, Issue: 1, Page: 139-146
2010
  • 61
    Citations
  • 0
    Usage
  • 30
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    61
    • Citation Indexes
      61
  • Captures
    30

Article Description

The novel fluorescent sensor 1, which is comprised of two rhodamine B lactams as fluorophores that are 1,3-alternately linked to a thiacalix[4]arene, behaves as a highly sensitive ion-induced fluorescent sensor for Fe and Cr. This compound was synthesized, and its recognition of metal ions was evaluated by fluorescence and absorption spectroscopy. The possible mechanism of Fe- and Cr-induced spirocycle opening of 1 leads to fluorescent and colorimetric enhancement, and these properties were investigated by spectroscopy, H NMR and IR. The stoichiometric ratios and association constants of the complexes between 1 and these ions have been measured and calculated, and showed that the presence of Fe or Cr induced sensor 1 to form a stable 1:1 complex. © 2010 Springer Science+Business Media B.V.

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