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1,10-邻菲绕啉是一类重要的双齿含氮配体,能与许多过渡金属及镧系金属形成络合物。系统和深入地了解稀土与1,10-邻菲绕啉所形成的配合物性质、结构和成键规律,对稀土的研究和利用具有一定的意义。 Melby等制备了多种镧系络合物,并测定了散射光谱。络合物三-(β-戊二酮)-1,10-邻菲绕啉合铕(Ⅲ)[Eu(C_5H_7O_2)_3(C_(10)H_8N_2)]的荧光光谱存在着~5D_0→~7F_0、~5D_0→~7F_1和~5D_0→~7F_2三种可能的跃迁,从这种低对称性络合物的荧光光谱中不能确定它的分子结构。Watson等用单晶X射线衍射测定了该络合物的晶体结构属单斜晶系,空
1,10-Phenanthroline is an important class of bidentate nitrogen-containing ligands that can form complexes with many transition metals and lanthanides. Systematic and in-depth understanding of the rare earth and 1,10-phenanthroline complexes formed by the nature, structure and bonding rules, the research and utilization of rare earth is of some significance. Melby et al prepared a variety of lanthanide complexes and measured the scattering spectra. Fluorescence spectra of the complexes Eu (C_5H_7O_2) _3 (C_ (10) H_8N_2)] with ~ (β-pentanedionato) -1,10-phenanthroline present ~ 5D_0 → ~ 7F_0 , ~ 5D_0 → ~ 7F_1 and ~ 5D_0 → ~ 7F_2. From the fluorescence spectra of this low symmetry complex, its molecular structure can not be determined. Watson and other single crystal X-ray diffraction measured the crystal structure of the complex is monoclinic, empty