Smart lanthanide antennas for sensing water.
Francisco Fueyo-GonzálezEmilio García-FernándezDavid MartínezLourdes InfantesÁngel OrteJuan A González-VeraRosario HerranzPublished in: Chemical communications (Cambridge, England) (2020)
Two new families of lanthanide antennas are described. 8-Methoxy-4,5-dihydrocyclopenta[de]quinolin-2(1H)-one phosphonates or carboxylates behave as selective antennas exhibiting Eu3+ luminescence in organic solvents, while quinolin-2(1H)-one analogues selectively sensitize the Tb3+ emission. These emissions are quenched by H2O addition. Based on this behaviour, the new lanthanide antennas can be used as highly sensitive water sensors.