配合物Ｅｕ（ｏ－ＭＢＡ）３ｐｈｅｎ（ｏ－ＭＢＡ：邻甲基苯甲酸酸根离子；ｐｈｅｎ：１，１０－二氮杂菲）在紫外或可见光激发下，能发出很强的红色荧光．以Ｅｕ（Ⅲ）离子为光谱探针，７７Ｋ下测得其高分辨激发和发射光谱．选择激发配合物的５Ｄ０能级，得到两组不同的５Ｄ０→７Ｆ２发光光谱，表明配合物中Ｅｕ（Ⅲ）离子有不同的化学环境．配合物的喇曼光谱中，羧基阴离子的反对称伸缩振动（γａｓ（ＣＯＯ））和对称伸缩振动（γｓ（ＣＯＯ））谱带是明显分裂和带肩峰的宽带，说明配合物中羧基同时存在多种配位方式，这与它的晶体结构测定结果一致． The complex Eu (o-MBA) 3phen (o-MBA: o-methylbenzoate ion; phen: 1,10-phenanthroline) emits strong red fluorescence under ultraviolet or visible light excitation. Eu (Ⅲ) ions were used as spectral probe and their high-resolution excitation and emission spectra were measured at 77K. Two different 5D0 → 7F2 luminescence spectra were obtained by excitation of the 5D0 level of the complex, indicating that Eu (Ⅲ) ions in the complex have different chemical environments. In the Raman spectrum of the complex, the antisymmetric stretching vibration (γas (COO)) and symmetric stretching vibration (γs (COO)) bands of the carboxyl anion are clearly split and broad bands with acromion, indicating that the carboxyl groups in the complex coexist A variety of coordination, which is consistent with the determination of its crystal structure.