| 초록 |
We report the fabrication of a unique racemic macrocycle via the association of metallosupramolecular helicates. A nickel ({Ni4}) cluster-based supramolecular helicate, [Ni8(PDA)6(CDBA)3(DMF)2(H2O)4] (1) (PDA = 2,6-pyridinedicarboxylate, CDBA = 4,4’-carbonyldibenzoate, DMF = dimethylformamide) is successfully synthesized and fully characterized. Dimerization of the right (P-) and left (M-) handed helicates of 1 via the coordination of metalloligands, [Ni(PDA2)]2- affords {[Ni8(PDA)6(CDBA)3(DMF)4–Ni(PDA)2]2} (2), which can be the representative model of the coordinative helix-helix association of heteroleptic helicates. The solid-state structures of 1 and 2 show excellent and selective CO2 uptake properties. |
