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在氩气中,以四氢呋喃为溶剂,锂和萘为还原剂,制得了二氯化铕与二环己基-18-冠-6、18-冠-6、二苯并-18-冠-6、苯并-15-冠-5和二氯化镱与二环己基-18-冠-6的金属离子与冠醚比为4∶3的固体络合物。进行了元素含量、红外光谱、电子顺磁共振谱及差热和热重的分析,测定了络合物中铕、镱的价态,并与相应冠醚的三氯化铕、三氯化镱的络合物进行了对比分析。
Tetrahydrofuran as a solvent, lithium and naphthalene as a reducing agent were used to prepare europium dichloride with dicyclohexyl-18-crown-6,18-crown-6, dibenzo-18-crown-6, Benzo-15-crown-5 and ytterbium dichloride and dicyclohexyl-18-crown-6 with a crown ether ratio of 4: 3. The elemental content, infrared spectrum, electron paramagnetic resonance spectrum and differential thermal and thermogravimetric analyzes were carried out. The valences of europium and ytterbium in the complex were determined. The results showed that the valences of europium trichloride, The complexes were compared.