[Zn2(HPO3)2(H2PO3)][C3H5N2] and [Zn2(HPO3)3][C4H7N2]2·2H2O: Two new layered zinc phosphites with double 12-membered rings templated by imidazole and 2-methylimidazole

Polyhedral views of the double layer structures of [Zn2(HPO3)2(H2PO3)][C3H5N2] and [Zn2(HPO3)3][C4H7N2]2·2H2O showing the imidazole cations sitting in the middle of the D12MR windows and 2-methylimidazole cations inserting into the D12MR cavities.