| 초록 |
We report a strategy to achieve a discrete cage architecture featuring a high level of structural hierarchy through a multiple-assembly process. A cobalt (Co) supramolecular triple-stranded helicate-based discrete molecular cage, [[Co8(PDA)6(tbu-PTA)3(DMF)4(H2O)2]6-[Co(H2O)3]4] (1) (PDA = 2,6-pyridinedicarboxylate, tbu-PTA = 5-tert-butyl isophthalate, DMF = dimethylformamide), was successfully synthesized and fully characterized. The solid-state structure of 1 shows that it is composed of six triple-stranded helicates interconnected by four linking Co(II) species. Complex 1 is an unusual example of a highly symmetric cage architecture resulting from the coordination-driven assembly of metallosupramolecular modules. The discrete Co triple-stranded helicate supramolecules, Co8(PDA)6(tbu-PTA)3(DMF)6 (2), were also synthesized in a separated reaction. |
