A novel rhodamine-based thiacalix[4]arene fluorescent sensor for Fe3+ and Cr3+

作者：Zheng, XiangYong; Zhang, WenJuan; Mu, Lan; Zeng, Xi^*; Xue, SaiFeng; Tao, Zhu; Yamatob, Takehiko

来源：Journal of Inclusion Phenomena and Macrocyclic Chemistry, 2010, 68(1-2): 139-146.

DOI：10.1007/s10847-010-9759-7

• Fluorescent
• Colorimetrical
• Chemosensor
• Rhodamine
• Thiacalix[4]arene

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 Fe3+ and Cr3+. This compound was synthesized, and its recognition of metal ions was evaluated by fluorescence and absorption spectroscopy. The possible mechanism of Fe3+- and Cr3+-induced spirocycle opening of 1 leads to fluorescent and colorimetric enhancement, and these properties were investigated by spectroscopy, H-1 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 Fe3+ or Cr3+ induced sensor 1 to form a stable 1:1 complex.

• 出版日期2010-10
• 单位贵州大学