The synthesis and structural characterisation of two novel complexes of 4-substituted-1,2,4-triazoles, namely [Cd(pCltrz)2(NCS)2(H2O)2] (1) and [Cu(4-atrz)4(Cl)0.5(H2O)0.5]·(ClO4)1.5(2), are described. Elemental analysis, IR spectra and X-ray crystal structure analysis were carried out to determine the compositions and crystal structures of two compounds. The cadmium atom in 1 has a distorted octahedral coordination and forms one-dimensional chains via hydrogen bonding contacts. 2 has a distorted pyramid environment at the copper atom and a unique double-layer supramolecular structure connected via hydrogen bonds.