UNAM-1: a robust CuI and CuII containing 3D-hydrogen-bonded framework with permanent porosity and reversible SO2 sorption

The construction of hydrogen-bonded frameworks (HBFs) that express permanent porosity and functionality is challenging due to the delicateness of hydrogen bonds. We present UNAM-1, a robust 3D-HBF fully sustained by charge-assisted H-bonds between [Cu(II)CuI12(HL)(12)](10-) and [Me2NH2](+) units, which displays a surface area of 522 m(2) g(-1) and reversibly adsorbs SO2 (3.5 mmol g(-1)).