| Abstract: | Two novel ligands N‐Benzyl‐2‐{2′‐(benzyl‐phenyl‐carbamoyl)‐methoxy]‐1,1′]binaphthalenyl‐2‐yloxy}‐N‐phenyl‐acetamide (L1) and N‐Methyl‐2‐{2′‐(methyl‐phenyl‐carbamoyl)‐methoxy]‐1,1′]binaphthalenyl‐2‐yloxy}‐N‐phenyl‐acetamide (L2), and their europium(III) complexes with picrate, Eu(pic)3(L1)] and Eu(pic)3(L2)], were synthesized and characterized by elemental analysis, IR, UV‐Vis and fluorescence spectroscopy. The crystal structure of Eu(pic)3(L1)]·2CHCl3 was determined by single crystal X‐ray diffraction. The europium atom is coordinated by nine oxygen atoms of four from the L1 and five from two bidentate and one unidentate picrates. The fluorescent intensity of Eu(pic)3(L2)] is about 2.6 times that of Eu(pic)3(L1)] in solid states. But in CHCl3 solution, the fluorescent intensity of Eu(pic)3(L1)] is stronger slightly than Eu(pic)3(L2)]. |
