Three chiral zinc sulfate compounds (NH4)2[Zn2(SO4)3] (1), (NH4)2[Zn(SO4)2] (2) and (C4H12N2)[Zn(SO4)2] (3) have been solvothermally synthesized by using achiral templates. The structures have been characterized by single-crystal X-ray analysis, infrared spectroscopy, X-ray powder diffraction, thermogravimetric analysis (TGA) and elemental analysis. Compound 1 crystallizes in space group P213 with Flack parameter 0.011(14), displaying a network of langbeinite topology. Compound 2 crystallizes in space group P212121 with Flack parameter 0.055(19), revealing a chiral diamondoid framework. Compound 3 crystallizes in space group P21 with Flack parameter 0.459(17), exhibiting a chiral layered structure with racemic twin crystals.
