Anthracene-based open and macrocyclic receptors in the flurometric detection of urea
作者:Kumaresh Ghosh、Goutam Masanta
DOI:10.1039/b909536e
日期:——
Anthracene-based open and macrocyclic receptors 1 and 2 have been designed and synthesized for the recognition of urea in less polar CHCl3 and more polar CH3CN solvents. Receptor 1 binds urea strongly in CHCl3 and exhibits a significant increase in the emission of the anthracene. Macrocyclic analogue 2 shows higher binding and good sensibility towards urea due to the macrocyclic effect. In CH3CN, the binding constant values are lower in magnitude, but the trend is similar to that seen in CHCl3. Both the receptors 1 and 2 are examples of PET sensors for the recognition of urea.