Abstract: | The non‐ionic europium(III) complex Eu(TTA)3·DAF]·0.5C7H8 (TTA = 2‐thenoytrifluoroacetonate, DAF = 4, 5‐diazafluoren‐9‐one) was synthesized. The structural determination has been carried out. DAF coordination induces the both excitation spectra in the solid state and solution having a red shift and sensitizes Eu3+ luminescence under visible light excitation. |