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Issue 11, 2003
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A nanoporous network polymer derived from hexaazatrinaphthylene with potential as an adsorbent and catalyst support

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Abstract

The synthesis and properties of a nanoporous network polymer incorporating 5,6,11,12,17,18-hexaazatrinapthylene (Hatn) as the rigid functional unit is described. This material is readily prepared from the efficient dibenzodioxane forming reaction between 2,3,8,9,14,15-hexachloro-5,6,11,12,17,18-hexaazatrinaphthylene and 5,5′,6,6′-tetrahydroxy-3,3,3′,3′-tetramethyl-1,1′-spirobisindane and exhibits a high BET surface area (775 m2 g−1) similar to that obtained from related nanoporous networks based on phthalocyanine and porphyrin macrocycles. The ability of the Hatn unit to bind to metal ions was shown by the sequential binding of three palladium(II) dichloride moieties to a soluble model Hatn compound using a 1H NMR titration experiment. When exposed to an excess of palladium(II) dichloride in chloroform solution, the Hatn nanoporous network is shown to adsorb 3.9 mmol g−1 of the metal complex. The resulting material retains porosity (BET surface area = 347 m2 g−1) and should be useful as a heterogeneous catalyst. The Hatn network polymer is also shown to be effective for the adsorption of phenol from aqueous solution with a maximum adsorption of 5 mmol g−1, which is a significant improvement over the performance of activated carbon reported in similar studies.

Graphical abstract: A nanoporous network polymer derived from hexaazatrinaphthylene with potential as an adsorbent and catalyst support

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Article information


Submitted
09 Apr 2003
Accepted
30 May 2003
First published
24 Sep 2003

J. Mater. Chem., 2003,13, 2721-2726
Article type
Paper

A nanoporous network polymer derived from hexaazatrinaphthylene with potential as an adsorbent and catalyst support

P. M. Budd, B. Ghanem, K. Msayib, N. B. McKeown and C. Tattershall, J. Mater. Chem., 2003, 13, 2721
DOI: 10.1039/B303996J

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