合成了以苯甲酸和 4 ,4′-联吡啶为配体 ,铕和镧为中心离子的超分子配合物 .在波长为2 88nm紫外光激发下 ,测定了配合物的荧光光谱 .结果表明 ,苯甲酸铕 ( Eu L3,L=C6H5COO-)具有较强的荧光 ,用 4 ,4′-联吡啶连结铕配合物和镧配合物 ( La L3) ,形成超分子配合物( Eu La L6L′,L′=4 ,4′-联吡啶 )后 ,其荧光强度可数倍增加 The supramolecular complexes with benzoic acid and 4, 4’-bipyridine as ligands, europium and lanthanum as the central ion were synthesized.The fluorescence spectra of the complexes were measured under the excitation of UV at 2 88 nm.The results showed that Europium benzoate (Eu L3, L = C6H5COO-) has a strong fluorescence. The europium complex and lanthanum complex (La L3) are linked with 4,4’-bipyridine to form supramolecular complexes (Eu La L6L ’ L ’= 4, 4’-bipyridine), its fluorescence intensity can be several fold increase