Two-dimensional Porous Framework Assembled through Hydrogen-bonds and Dipole-dipole Interactions

We demonstrate that a dipole-dipole interaction of benzo[c][1,2,5]thiadiazole moieties, directional H-bond formation of carboxy groups, and a rigid molecular skeleton enable a structurally-predictable two-dimensional hydrogen-bonded organic framework BTIA-1 from tetratopic carboxylic acid. Activated form BTIA-1a was revealed to have BET surface area of 237 m2g−1 and show selective adsorption of CO2. Combination of dipole-dipole interactions of benzothiadiazole moieties and directional H-bond formation of carboxy groups enabled assembly of a structurally-predictable 2D hydrogen-bonded organic framework. The activated framework was revealed to have BET surface area of 237 m2g−1 and show selective adsorption of CO2.