A set of new transition metal-based coordination complexes dependent upon Hpztza ligand (Hpztza=2-(5-(pyrazin-2-yl)-2H-tetrazol-2-yl) acetic acid)

► Ten novel transition metal-based coordination complexes with 2-(5-(pyrazin-2-yl)-2H-tetrazol-2-yl) acetic acid (Hpztza) are reported. ► Complexes 1-10 are described as mononuclear structure, 1D and 2D frameworks with diverse architecture. ► Six coordination complexes show emission at room temperature in the solid state.