Hydrogen bonding controlled catalysis of a porous organic framework containing benzimidazole moieties?

New Journal of Chemistry Pub Date: 2014-02-18 DOI: 10.1039/C4NJ00053F

Abstract

A microporous organic framework (JUC-Z12) was synthesized quantitatively from tetra(4-formylphenyl)methane and 3,3′-diaminobenzidine. JUC-Z12 shows high thermal stability (>400 °C), a large surface area (SBET = 750 m2 g?1), a well-defined uniform micropore distribution (1.09 nm) and high Qst for H2 (?8.1 kJ mol?1), CO2 (?29.5 kJ mol?1), and CH4 (?22.2 kJ mol?1). It also exhibits selective catalytic activities in the Knoevenagel reaction, which is supposed to be controlled by hydrogen bonding between substrates and JUC-Z12. The JUC-Z12 catalyst can be easily isolated from the reaction mixture by simple filtration and reused with high activity.

Graphical abstract: Hydrogen bonding controlled catalysis of a porous organic framework containing benzimidazole moieties
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