Enhancing H₂ Uptake by “Close‐Packing” Alignment of Open Copper Sites in Metal–Organic Frameworks

Abstract

Open and close: Inspired by close-packing of spheres, to strengthen the framework–H2 interaction in MOFs (metal-organic frameworks), a strategy is devised to increase the number of nearest neighboring open metal sites of each H2-hosting cage, and to align the open metal sites toward the H2 molecules. Two MOF polymorphs were made, one exhibiting a record high hydrogen uptake of 3.0 wt % at 1 bar and 77 K. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z802087_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.