Water-Soluble Neutral Calix[4]arene-Lanthanide Complexes: Synthesis and Luminescence Properties.
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 = 363 nm.
Steemers
Frank J.
FJ
Laboratory of Organic Chemistry, University of Amsterdam, Nieuwe Achtergracht 129, 1018 WS Amsterdam, The Netherlands.
Meuris
Hans G.
HG
Verboom
Willem
W
Reinhoudt
David N.
DN
van Der Tol
Erik B.
EB
Verhoeven
Jan W.
JW