Metalating a Covalent Organic Framework

  • Author:
  • Published: 13 November 2016
  • Copyright: Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
  • Source / Publisher: Journal of the American Chemical Society/ACS Publications
  • Associated Societies: American Chemical Society (ACS), USA
thumbnail image: Metalating a Covalent Organic Framework

Covalent organic frameworks (COFs) are porous materials with tunable properties that can be useful in, e.g., catalysis, gas storage/separation, and optoelectronics. Incorporating metals can improve their properties for these applications. 2D networks can be built, for example, from metalated porphyrins or phthalocyanines. However, the metalation of 3D COFs without compromising the porous structure is much more challenging.

Psaras L. McGrier and colleagues, Ohio State University, Columbus, OH, USA, have metalated a three-dimensional COF with nickel for the first time. The team prepared the COF, called DBA-3D-COF, with a solvothermal synthesis combing a dehydrobenzoannulene (DBA) and tetra-(4-dihydroxyborylphenyl)methane (TBPM). The framework was then metalated using a solution of Ni(COD)2 (COD = 1,5-cyclooctadiene) in toluene (10 wt%) to give the desired product (detail pictured) as a dark purple powder.

The metalated COF was characterized using X-ray crystallography, 13C NMR spectroscopy, X-ray photoelectron spectroscopy, and gas absorption measurements, amongst other techniques. The material retained its crystalline structure upon nickel insertion and the surface area was only minimally reduced. According to the researchers, nickel could be replaced with other metals, and metalated DBA-based COFs could be promising materials for application.


Article Views: 3089

Sign in Area

Please sign in below

Additional Sign In options

Please note that to comment on an article you must be registered and logged in.
Registration is for free, you may already be registered to receive, e.g., the newsletter. When you register on this website, please ensure you view our terms and conditions. All comments are subject to moderation.

Article Comments - To add a comment please sign in

If you would like to reuse any content, in print or online, from, please contact us first for permission and consult our permission guidance prior to making your request

Follow on Facebook Follow on Twitter Follow on YouTube Follow on LinkedIn Follow on Instagram RSS Sign up for newsletters

Magazine of Chemistry Europe (16 European Chemical Societies) published by Wiley-VCH