Polyoxometalates-based chiral frameworks involving helical motifs generated by spontaneous resolution

189A pair of enantiomerically pure chiral POMs-based frameworks constructed by the achiral W/Mo mixed Keggin-type polyanions and {K(H2O)}n helixes were isolated, which represent rare examples of POMs-based 3D chiral inorganic porous framework generated by spontaneous resolution upon crystallization without any chiral auxiliary.