Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 57, Issue 43, Pages 14116-14120Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201809819
Keywords
coordination; gelation; molecular spoked wheels; self-assembly; terpyridine
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Funding
- Guangzhou University of China
- National Science Foundation of U.S.A [CHE-1151991, CHE-1506722]
- National Institutes of Health [1R01GM128037]
- Modern Analysis and Testing Center of CSU
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM128037] Funding Source: NIH RePORTER
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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 (HNMR)-H-1, 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 42000Da.
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