The supra­molecular structure of a cadmium complex with the new functionalized terpyridine ligand 4'-[4-(pyrimidin-5-yl)phen­yl]-2,2':6',2''-terpyridine (L1): aqua­(L1-[kappa]³N,N',N'')(nitrato-[kappa]²O,O')(nitrato-[kappa]O)cadmium(II) dihydrate

The coordinating properties of the novel ligand 4'-[4-(pyrimidin-5-yl)phenyl]-2,2':6',2''-terpyridine were tested by reacting it with cadmium(II) nitrate. The resulting title complex presents a supramolecular motif dominated by a significant number of [pi]-[pi] interactions involving all the aromatic rings.

Three transition-metal complexes with the macrocyclic ligand meso-5,7,7,12,14,14-hexa­methyl-1,4,8,11-tetra­aza­cyclotetra­decane (L): [Cu(ClO₄)₂(L)], [Zn(NO₃)₂(L)] and [CuCl(L)(H₂O)]Cl

The three title transition-metal complexes display a distorted 4+2 octahedral environment for the cation, with the macrocycle defining the base. The effect of the different axial ligands in the intra- and intermolecular hydrogen bonding is discussed.