Rational Design of a Ternary Supramolecular System: Self-Assembly of Pentanuclear Lanthanide Helicates
Rational Design of a Ternary Supramolecular System: Self-Assembly of Pentanuclear Lanthanide Helicates
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DOI：
10.1021/ja204474v
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发表时间：
2011-07-20
影响因子：
15
通讯作者：
Hamacek, Josef
中科院分区：
文献类型：
--
作者：
El Aroussi, Badr;Zebret, Soumaila;Hamacek, Josef
第一个五核螺旋的自组装预测线性和四核母体超分子化合物的结构基础。因此，设计的三元超分子体系需要合适的多位有机受体，这是成功的合成。事实上，五核配合物的形成是实验证明与NMR和ESMS光谱，完美地反映了预期的模式。用半经验分子模拟方法研究了铕五核配合物的结构特征。目前的工作验证了组合的方法，导致tower-like的五核大厦的驱动形成。
The self-assembly of the first pentanuclear helicate was predicted on the structural basis obtained for linear and tetranuclear parent supramolecular compounds. Accordingly, the designed ternary supramolecular system requires appropriate polytopic organic receptors, which were successfully synthesized. Indeed, the formation of pentanuclear complexes was experimentally evidenced with NMR and ESMS spectra that perfectly reflect the expected pattern. The structural features in the europium pentanuclear complex are highlighted with semiempirical molecular modeling. The present work validates the combinatorial approach leading to the thermodynamically driven formation of tower-like pentanuclear edifices.