Tris­(bi­acetyl dihydrazone-κ²N,N′)­cadmium(II) bis­(perchlorate) at 110 K

The crystal structure of the title compound, [Cd(C₄H₁₀N₄)₃](ClO₄)₂, has been precisely determined at ca 110 K. The cation is located on a axis and is characterized by an approximate octahedral geometry, with each of the ligands occupying two coordination sites around the metal.

Tetra­aqua­bis(1,4-di-4-pyrid­yl-2,3-diaza-1,3-butadiene)zinc(II) bis­(perchlorate) and its supramolecular assembly

The structure of the title compound, [Zn(C₁₂H₁₀N₄)₂(H₂O)₄](ClO₄)₂, determined at 110 K, reveals a unique layered supramolecular aggregation stabilized by a combination of coordination, hydrogen-bonding and π–π forces. Disordered mol­ecules of solvent (methanol or a mixture of methanol and water) occupy the channel-like voids formed between the layers. The zinc cations have site symmetry.