用途:用于萃取分离锆和铪,以及铀、钍与核反应产物的分离等。
The reaction of Eu(tta)3 (tta = thenoyltrifluoroacetonato) with 4,4'-bipyridine (bipy), trans-1,2-bis(4-pyridyl)ethylene (bipyete), and 4,4'-bipyridine-N,N'- dioxide (bipyo) yielded three distinct complexes [Eu(tta)3(bipy)(H2O)] (1), [Eu(tta)3(bipyete)(CH3OH)]·CH3OH·bipyete (2), and [Eu(tta)3(bipyo)]·CH3OH (3), respectively. Compounds 1 and 2 have a hydrogen-bond linked dimer structure, while 3 has a one-dimensional chain structure linked by coordination bonds, which further forms two-dimensional arrays, resulting in an intercalation lattice that hosts methanol guest molecules. In solution compounds 1 and 2 emit a red color, characteristic of Eu(III), when irradiated by UV light, while compound 3 has no emission either in solution or the solid state.Key words: europium complexes, luminescence, structure, 4,4'-bipyridine, 1,2-bis(4-pyridyl)ethylene, 4,4'-bipyridine-N,N'-dioxide.
欧洲铕(Ⅲ)的三(thenoyltrifluoroacetonato) (tta = thenoyltrifluoroacetonato)与4,4'-联吡啶(bipy)、反式-1,2-双(4-吡啶基)乙烯(bipyete)和4,4'-联吡啶-N,N'-二氧化物(bipyo)的反应,分别得到了三个不同的配合物:[Eu(tta)3(bipy)(H2O)] (1)、[Eu(tta)3(bipyete)(CH3OH)]·CH3OH·bipyete (2)和 [Eu(tta)3(bipyo)]·CH3OH (3)。化合物1和2具有由氢键连接的二聚体结构,而化合物3则通过配位键连接形成一维链状结构,进一步形成二维阵列,从而形成夹层晶格,其中包含甲醇客体分子。在溶液中,化合物1和2在紫外线照射下发出红色光,这是铕(III)的特征,而化合物3在溶液或固态下均无发射。关键词:铕配合物,发光,结构,4,4'-联吡啶,1,2-双(4-吡啶基)乙烯,4,4'-联吡啶-N,N'-二氧化物。