The divalent europium bis-fluorenyl complex (C13H9)2Eu(THF)2 was synthesized by the metathesis reaction of EuI2(THF)2 with two equivalents of fluorenylpotassium and by the protolytic substitution of the naphthalene ligand in the (C10H8)Eu(THF)2 complex using the reaction with fluorene. According to X-ray diffraction data, the complex displays a skewed sandwich structure, in which one fluorenyl ligand is η5-coordinated to the metal atom, whereas the η3-coordination mode makes a great contribution to the coordination of another ligand. The (C5Me4H)2YbI(THF) complex was synthesized by the reaction of YbI3(THF)2 with two equivalents of (C5Me4H)K. The structure of the complex was established by X-ray diffraction.
二价
铕双
芴基配合物(
C13H9)2Eu(THF)2是通过
EuI2(THF)2与等量的
芴基
钾的复分解反应,以及(
C10H8)Eu(THF)2配合物中
萘配体的质子解离取代反应合成的。根据X射线衍射数据,该配合物呈现倾斜的三明治结构,其中一种
芴基
配体以η5配位方式与
金属原子配位,而另一种
配体则以η3配位方式与
金属原子配位。(C5Me4H)2YbI(THF)配合物是通过YbI3(THF)2与等量的(C5Me4H)K反应合成的。该配合物的结构通过X射线衍射确定。