Vertical Assembly of Giant Double- and Triple-Decker Spoked Wheel Supramolecular Structures.

ABSTRACT: The double- or triple-decker 3D metallo-hexagons were obtained by self-assembly of multitopic tris-terpyridines with Cd²⁺ ions in near-quantitative yield. Comprising up to 72 ionic pairs, the multiple spoked wheels display characteristic reversible gelation properties under thermodynamic conditions. The supramolecular metallo-nanoarchitectures were characterized by ¹ H NMR, 2D NMR (COSY and NOESY), and diffusion-ordered spectroscopy (DOSY) and HR-ESI-MS, traveling-wave ion mobility mass spectrometry (TWIM-MS), TEM, and AFM. For the first time, the self-assembly of 45 units at once was demonstrated to yield exceptional giant triple-decker hexagons of up to circa 42 000 Da.

SUBMITTER: Liu D 

PROVIDER: S-EPMC6345588 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature