Structural diversity in Cu(II) and Cd(II) coordination complexes with 4-amino-1,2,4-triazole ligand

The syntheses and crystal structures of three new coordination polymers containing 4-Amino-1,2,4-triazole ligand are reported. Complexes 1-2 show 1-D polymeric infinite chains, while complex 3 shows 2D pleated net. The anions Cl− in complexes 1 and 3 act as bridging or terminal ligands to the metal atoms while the ClO4− anions in 2 is not coordinated to the metal centers.