Direct Synthesis of a Covalent Triazine-Based Framework from Aromatic Amides.

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2018
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Abstract
There have been extensive efforts to synthesize crystalline covalent triazine-based frameworks (CTFs) for practical applications and to realize their potential. The phosphorus pentoxide (P O )-catalyzed direct condensation of aromatic amide instead of aromatic nitrile to form triazine rings. P O -catalyzed condensation was applied on terephthalamide to construct a covalent triazine-based framework (pCTF-1). This approach yielded highly crystalline pCTF-1 with high specific surface area (2034.1 m  g ). At low pressure, the pCTF-1 showed high CO (21.9 wt % at 273 K) and H (1.75 wt % at 77 K) uptake capacities. The direct formation of a triazine-based COF was also confirmed by model reactions, with the P O -catalyzed condensation reaction of both benzamide and benzonitrile to form 1,3,5-triphenyl-2,4,6-triazine in high yield.
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Authors Yu, Soo-Young;Mahmood, Javeed;Noh, Hyuk-Jun;Seo, Jeong-Min;Jung, Sun-Min;Shin, Sun-Hee;Im, Yoon-Kwang;Jeon, In-Yup;Baek, Jong-Beom;
Journal angewandte chemie (international ed in english)
Year 2018
DOI
10.1002/anie.201801128
URL
Keywords
covalent triazine frameworks crystalline organic networks cyclotrimerization microporous materials phosphorus pentoxide

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