Cadmium coordination polymers with different topologies depending on preparation methods: [CdL1.5(NO3)2], [CdL2(NO3)2] · (C6H6), and [CdL2(NO3)2] · 2(C4H8O) (L = 3-py-CHN-(CH3)C6H3-C6H3(CH3)-NCH-3-py)

Novel cadmium coordination polymers [CdL1.5(NO3)2] (1), [CdL2(NO3)2]  · (C6H6) (2), and [CdL2(NO3)2] · 2(C4H8O) (3) were prepared from Cd(NO3)2 · 4H2O and ligand L (3-py-CHN-(CH3)C6H3-C6H3(CH3)-NCH-3-py). Whereas polymer 1 was prepared by solvothermal reactions, polymers 2 and 3 were prepared by layer diffusion.