双烯酮亚胺基钇二氯化物LYCl_2(THF)_2的合成、表征及晶体结构[L=2,4二苯胺基-2-戊烯基]Synthesis, Characterization and Crystal Structure of β-Diketiminate Yttrium Chloride LYCl_2(THF)_2
焦锐,姚英明,沈琪,翁林红
摘要(Abstract)：
无水YCl3与一倍量的LLi(L=2,4 二苯胺基 2 戊烯基)在甲苯 四氢呋喃(THF)中反应,分离得到了双烯酮亚胺稀土二氯化物LYCl2(THF)2,并测定了其晶体结构。配合物属正交晶系,Pna21空间群,晶胞参数为a=1.9612(5)nm,b=0.9582(3)nm,c=1.4203(4)nm,V=2.669(1)nm3,Z=6,Dc=1.377mg·m-3,μ=2.408mm-1(MoKα),F(000)=1144,R=0.0358,wR=0.0640。中心金属钇原子与双烯酮亚胺基上的2个氮原子、2个氯原子以及2个四氢呋喃上的氧原子配位,形成一个六配位的、稍扭曲的八面体几何构型的配合物。
关键词(KeyWords)： 无机化学;钇;双烯酮亚胺;晶体结构;稀土
基金项目(Foundation): 国家自然科学基金(20072027);; 江苏省教育厅自然科学基金(01KJB150001)资助项目
作者(Author): 焦锐,姚英明,沈琪,翁林红
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