Embodiments of the present disclosure describe materials comprising a metal component, a first polytopic ligand, and a second polytopic ligand that associate to form an intricate mixed- linker structure with a merged-net. Embodiments of the present disclosure further describe methods of synthesizing intricate mixed-linker structure comprising: contacting a metal precursor, first ligand precursor, and second ligand precursor under reaction conditions sufficient to form an intricate mixed-linker structure with a merged net.