Zinc complexes with 1,2,4-triazole functionalized amino acid derivatives: Synthesis, structure and β-lactamase assay

► Synthesis of 1,2,4-triazole functionalized amino acid derivatives. ► Coordinating abilities towards ZnII ions in solid state and versus three zinc-β-lactamases. ► Crystal structure of trinuclear zinc complex of a 1,2,4-triazole functionalized methionine. Zn···Zn distance of 3.848 Å matches with zinc enzyme from Bacillus cereus.