A Novel Fluorescent Calix[4]arene Derivative with Benzimidazole Units For Selective Recognition to Fe and Cr

Title: A Novel Fluorescent Calix[4]arene Derivative with Benzimidazole Units For Selective Recognition to Fe and Cr

Volume: 6 Issue: 5

Author(s): He Wen Wang, Ya Qing Feng and Jin Qiang Xue

Affiliation:

Keywords: Calixarene, benzimidazole, fluorescent, recognition, selective, metal ions

Abstract: A novel fluorescent calix[4]arene derivative(1) with benzimidazole units as fluorophores and imino groups as ionophores at the upper rim has been synthesized in the cone conformation. Compound (1) was fully characterized by 1HNMR, 13C-NMR, IR and MS. The changes of UV-Vis spectra and fluorescent spectra upon metal ions complexation show compound (1) can selectively recognize Fe3+ and Cr3+ ions. The complexation ratio of compound (1) and Fe3+ or Cr3+ is 1:1. The association constant of compound (1) for Fe3+ was 3.4x104 and for Cr3+ was 2.8x105.

Cite this article as:

Wang Wen He, Feng Qing Ya and Xue Qiang Jin, A Novel Fluorescent Calix[4]arene Derivative with Benzimidazole Units For Selective Recognition to Fe and Cr, Letters in Organic Chemistry 2009; 6 (5) . https://dx.doi.org/10.2174/157017809788681329