Chemistry Letters, Vol.40, No.11, 1226-1228, 2011
Selective Fluorometric Sensing of Calcium Cation by C-Pivot Lariat Monoaza-crown Ether with Two Pyrene Moieties
A new type of C-pivot lariat monoaza-crown ether 1b containing a 15-crown-5 ring and two pyrene moieties on the sidearms was found to be a highly sensitive and selective fluorescent chemosensor toward Ca2+ in the presence of Na+, K+, Mg2+, and Ca2+.