二茂基稀土二吡啶胺基配合物的合成及表征

Synthesis and characterization of biscyclopentadienyl lanthanide 2, 2'-dipyridylamido complexes

用三茂基稀土络合物与等摩尔的二吡啶胺在四氢呋喃（THF）溶剂中于室温下反应，合成了四个对空气和湿气敏感的未见报道的二吡啶胺基稀土金属有机配合物．产物经元素分析、红外光谱、质谱等鉴定，确定它们的组成为Cp2Ln（DPA）THF（Cp为茂基，DPA为■基,Ln=Yb,Ho,Sm,Pr）.

The reaction of tricyclopentadienyl lanthanide Cp3Ln (CP = C5H5, Ln = Yb, Ho,Sin, Pr) with the equimolar 2, 2'-dipyridylamine in THF forms four new organolanthanide complexes, namely Cp2Ln (DPA) THF (Ln=Yb(Ⅰ ),Ho (Ⅱ ),Sm(Ⅲ ),Pr(Ⅳ ), which are sensetive to air and moisture. The composition of these complexes has been characterized by elemental analysis, infrared spectra and mass spectra.