Abstract

The reactions of functionalized lithium CF₃-β-diketonate (LiL) with europium(III) and terbium(III) chlorides in acetonitrile afford heterobimetallic complexes with the general formula [LiL-nL₄(H₂O)](CH₃CN) (Ln = Eu (IIIa) and Tb (IIIb)). It is found that Ln–Li tetrakis-β-diketonates can also be prepared by the crystallization from acetonitrile of the previously synthesized complexes [(LnL₃)(LiL)(MeOH)] (I) and [(LnL₃)(LiL)(H₂O)] (II). For the first time, the single crystals of the compounds in a series of Ln–Li tetrakis-β-diketonates are characterized by X-ray diffraction analysis (CIF files CCDC nos. 1973632 (IIIa) and 1973633 (IIIb)). The photoluminescence properties of the synthesized heterometallic complexes in the solid state are studied.

中文翻译：

---

稀土镧系元素-四-β-二酮锂的稀有例子：合成，结构和发光性质

摘要

官能化的CF ₃ -β-二酮酸锂（LiL）与euro（III）和氯化III（III）在乙腈中的反应可得到通式为[LiL-nL ₄（H ₂ O）]（CH ₃ CN）的杂双金属配合物（Ln = Eu（IIIa）和Tb（IIIb））。已经发现，Ln-Li四-β-二酮酸也可以通过预先合成的[[LnL ₃）（LiL）（MeOH）]（I）和[（LnL ₃）（LiL）络合物的乙腈结晶来制备。（H ₂ O）]（II）。一系列Ln-Li四元化合物中的化合物的单晶第一次-β-二酮酸酯的特征在于X射线衍射分析（CIF文件，CCDC号1973632（IIIa）和1973633（IIIb））。研究了合成的固态杂金属配合物的光致发光特性。