Author/Authors :
Amel Ben Othman، نويسنده , , Jeong Won Lee، نويسنده , , Young-Duk Huh، نويسنده , , Rym Abidi، نويسنده , , Jong Seung Kim، نويسنده , , Jacques Vicens، نويسنده ,
Abstract :
In acetonitrile, the tren-N-tricalix[4]arene 4 with three appended pyrenyl groups showed an enhanced fluorescence in the presence of Al3+ and, to a lesser extent, of In3+. Compound 4 was shown to form a 1:1 complex with Al3+, the metal cation being located in the tren part. The association constant (Ka) of 4 for the Al3+ cation was calculated to be 8.7×103 M−1 in acetonitrile.
