Assembling Pentatopic Terpyridine Ligands with Three Types of Coordination Moieties into a Giant Supramolecular Hexagonal Prism: Synthesis, Self-Assembly, Characterization, and Antimicrobial Study

J Am Chem Soc. 2019 Oct 9;141(40):16108-16116. doi: 10.1021/jacs.9b08484. Epub 2019 Sep 25.

Abstract

Three dimensional (3D) supramolecules with giant cavities are attractive due to their wide range of applications. Herein, we used pentatopic terpyridine ligands with three types of coordination moieties to assemble two giant supramolecular hexagonal prisms with a molecular weight up to 42 608 and 43 569 Da, respectively. Within the prisms, two double-rimmed Kandinsky Circles serve as the base surfaces as well as the templates for assisting the self-sorting during the self-assembly. Additionally, hierarchical self-assembly of these supramolecular prisms into tubular-like nanostructures was fully studied by scanning tunneling microscopy (STM) and small-angle X-ray scattering (SAXS). Finally, these supramolecular prisms show good antimicrobial activities against Gram-positive pathogen methicillin-resistant Staphylococcus aureus (MRSA) and Bacillus subtilis (B. subtilis).

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Anti-Bacterial Agents / chemical synthesis*
  • Anti-Bacterial Agents / chemistry
  • Anti-Bacterial Agents / pharmacology
  • Bacillus subtilis / drug effects
  • Inhibitory Concentration 50
  • Ligands
  • Macromolecular Substances / chemical synthesis*
  • Macromolecular Substances / chemistry
  • Macromolecular Substances / pharmacology
  • Methicillin-Resistant Staphylococcus aureus / drug effects
  • Molecular Structure
  • Organometallic Compounds / chemical synthesis*
  • Organometallic Compounds / chemistry
  • Organometallic Compounds / pharmacology
  • Pyridines / chemistry*

Substances

  • Anti-Bacterial Agents
  • Ligands
  • Macromolecular Substances
  • Organometallic Compounds
  • Pyridines