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
- 61Citations
- 30Captures
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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.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=79951927996&origin=inward; http://dx.doi.org/10.1007/s10847-010-9759-7; http://link.springer.com/10.1007/s10847-010-9759-7; http://link.springer.com/content/pdf/10.1007/s10847-010-9759-7; http://link.springer.com/content/pdf/10.1007/s10847-010-9759-7.pdf; http://link.springer.com/article/10.1007/s10847-010-9759-7/fulltext.html; https://dx.doi.org/10.1007/s10847-010-9759-7; https://link.springer.com/article/10.1007/s10847-010-9759-7; http://www.springerlink.com/index/10.1007/s10847-010-9759-7; http://www.springerlink.com/index/pdf/10.1007/s10847-010-9759-7
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