A highly selective bifunctional luminescence probe for potassium and fluoride ions

Chemical equations presented. A novel bifunctional molecule 1 by a combination of 1,3-alternate calix[4]-crown-5 and triarylborane moieties through alkynyl linkers has been designed and synthesized. Compound 1 shows intense fluorescence with a photoluminescence quantum yield of 0.70 in CH 2Cl2 solution and can serve as a bifunctional luminescent probe for potassium and fluoride ions with high sensitivity and selectivity. © 2011 American Chemical Society.link_to_subscribed_fulltex