Delayed lanthanide luminescence sensing of aromatic carboxylates using heptadentate triamide Tb(III) cyclen complexes: the recognition of salicylic acid in water.
The coordinately unsaturated terbium complexes Tb.1 and Tb.2 possess two labile metal-bound water molecules that can be displaced upon metal chelation to aromatic carboxylic anions such as salicylic acid in water, which gives rise to large enhancements in the Tb(III) luminescence.
D002264:Carboxylic Acids / Q000032:analysis; D018360:Crystallography, X-Ray; D005063:Europium / Q000737:chemistry; D049449:Luminescence; D009942:Organometallic Compounds / Q000737:chemistry*; D020156:Salicylic Acid / Q000032:analysis*; D013725:Terbium / Q000737:chemistry*; D014867:Water / Q000737:chemistry
D002264:Carboxylic Acids; D009942:Organometallic Compounds; D014867:Water; D013725:Terbium; D005063:Europium; D020156:Salicylic Acid