H+, Na+ and K+ modulated lanthanide luminescent switching of Tb(III) based cyclen aromatic diaza-crown ether conjugates in water.
The cyclen based aromatic diaza-15-crown-5 and 18-crown-6 ether conjugates 1Tb-4Tb were designed as luminescent switches for sodium and potassium where the delayed Tb(III) emission, occurring as line-like emission bands between 490-622 nm, was 'switched on' upon recognition of these ions in pH 7.4 buffered water solution.
Department of Chemistry, Trinity College Dublin, Dublin 2, Ireland. gunnlaut@tcd.ie
Thorfinnur
T
Gunnlaugsson
Joseph P
JP
Leonard