Tripodal 4-Pyridyl-Derived Host Ligands and Their Metallo-Supramolecular Chemistry: Stella Octangula and Bowl-Shaped Assemblies
Tripodal 4-Pyridyl-Derived Host Ligands and Their Metallo-Supramolecular Chemistry: Stella Octangula and Bowl-Shaped Assemblies
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DOI：
10.1021/ic901972h
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发表时间：
2010-01-18
影响因子：
4.6
通讯作者：
Hardie, Michaele J.
中科院分区：
文献类型：
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作者：
Ronson, Tanya K.;Carruthers, Christopher;Hardie, Michaele J.
报道了五种具有 4-吡啶基侧臂的新型环三苝三烯衍生物的合成，以及其中三种的晶体结构。使用扩散有序光谱 NMR 和电喷雾 MS 技术，具有延伸的 4-吡啶苯基侧臂的三个配体和衍生自环三苯酚的配体已被证明可形成 [Pd6L8]12+星形八角组装体。这证实了星形八角组装体的普遍性，前提是配体臂表现出一定程度的刚性。更灵活的醚连接配体三(4-吡啶基甲基)环三愈创木基在固态和溶液中形成更小的[Pd3L4]6+碗形组装体。先前报道的配体三(4-吡啶基甲基氨基)环三愈创木基在溶液中形成类似的组装体。
The synthesis of five new cyclotriveratrylene derivatives with 4-pyridyl side arms is reported, along with the crystal structures of three of these. Three ligands with extended 4-pyridylphenyl side arms and a ligand derived from cyclotriphenolene have been shown to form [Pd6L8]12+stella octangula assemblies using diffusion-ordered spectroscopy NMR and electrospray MS techniques. This confirms the generality of the stella octagula assembly, providing that the ligand arms show a degree of rigidity. The more flexible ether-linked ligand tris(4-pyridylmethyl)cyclotriguaiacylene forms a smaller [Pd3L4]6+bowl-shaped assembly in the solid state and in solution. The previously reported ligand tris(4-pyridylmethylamino)cyclotriguaiacylene forms a similar assembly in solution.