5 years ago

Guest-induced Assembly of Bis(thiosemicarbazonato) Zinc(II) Coordination Nanotubes

Guest-induced Assembly of Bis(thiosemicarbazonato) Zinc(II) Coordination Nanotubes
Jonathan M. White, Paul S. Donnelly, Keith F. White, Brendan F. Abrahams, Brett M. Paterson
A ZnII complex of the dianionic tetradentate ligand formed by deprotonation of glyoxal-bis(4-phenyl-3-thiosemicarbazone) (H2gtsp) is a [3+3] trinuclear triangular prism. Recrystallization of this complex in the presence of either CO2, CS2, or CH3CN leads to the formation of [4+4] open-ended charge-neutral tetranuclear coordination nanotubes, approximately 2 nm in length and with internal dimensions large enough to accommodate linear guest molecules, which serve to template their formation. Upon removal of the templating molecules the nanotubes demonstrated reversible sorption of CO2 with an isosteric enthalpy of sorption of 28 kJ mol−1 at low loading. From three to four: Flexible dianionic bridging ligands and zinc(II) centers form either charge-neutral triangular prisms or—in the presence of linear templating molecules, CO2, CS2, and CH3CN—charge-neutral square coordination nanotubes with the templating agent included as a guest. The template can be removed from the inclusion complex while maintaining a porous material capable of adsorbing roughly two molecules of CO2 per nanotube.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/anie.201701596

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.