Water-Soluble Neutral Calix[4]arene−Lanthanide Complexes: Synthesis and Luminescence Properties
作者:Frank J. Steemers、Hans G. Meuris、Willem Verboom、David N. Reinhoudt、Erik B. van der Tol、Jan W. Verhoeven
DOI:10.1021/jo970132j
日期:1997.6.1
Water-soluble calix[4]arenes 10a,b with chromophores ("antenna") attached to the lower rim via a short spacer are described. In the neutral lanthanide complexes of 10a,b photoexcitation of the antenna induces lanthanide emission via intramolecular energy transfer. Calix[4]arene 10b with a chrysene moiety as sensitizer shows strong lanthanide emission for Eu(3+) with an excitation maximum at lambda