title: Facile Self-Assembly of Metallo-Supramolecular Ring-in-Ring and Spiderweb Structures Using Multivalent Terpyridine Ligands.
abstract: A series of metallo-supramolecular ring-in-ring structures was generated by assembling Cd(II) ions and the multivalent terpyridine ligands (L(1-3)) composed of one 60°-bent and two 120°-bent bis(terpyridine)s with varying alkyl linker lengths. The mechanistic study for the self-assembly process excluded an entropically templated pathway and showed that the intramolecularly complexed species is the key intermediate leading to ring-in-ring formation. The next-generation superstructure, a spiderweb, was produced in quantitative yield using the elongated decakis(terpyridine) ligand (L(5)).
authors: Department of Chemistry, National Taiwan University, No.1, Sec. 4, Roosevelt Rd., Taipei, 10617 (Taiwan).
authors: Jun-Hao
authors: JH
authors: Fu
authors: Department of Chemistry, National Taiwan University, No.1, Sec. 4, Roosevelt Rd., Taipei, 10617 (Taiwan).
authors: Yin-Hsuan
authors: YH
authors: Lee
authors: Department of Chemistry, National Taiwan University, No.1, Sec. 4, Roosevelt Rd., Taipei, 10617 (Taiwan).
authors: Yun-Jui
authors: YJ
authors: He
authors: Department of Chemistry, National Taiwan University, No.1, Sec. 4, Roosevelt Rd., Taipei, 10617 (Taiwan). ytchan@ntu.edu.tw.
authors: Yi-Tsu
authors: YT
authors: Chan
keywords: cadmium; multivalency; self-sorting; supramolecular chemistry; terpyridines