This contribution investigates LnIII complexes formed with a small ditopic ligand, L1, and their structural, thermodynamic and photophysical properties. The spectrophotometric and NMR titrations evidence the triangular assemblies [Ln3(L1-H)3]6+ at stoichiometric conditions and their properties are discussed in relation to L2-containing analogues. In addition, the dinuclear species, [Ln2(L1-H)]5+, is observed with an excess of metal.
这篇论文研究了 LnIII 与小型二价
配体 L1 形成的配合物及其结构、热力学和光物理性质。分光光度法和核磁共振滴定法证明了在
化学计量条件下的三角形集合体 [Ln3(L1-H)3]6+,并讨论了它们与含
L2 类似物的性质。此外,在
金属过量的情况下,还观察到双核物种 [Ln2(L1-H)]5+。