ABSTRACT
The first known homoleptic cofacial dimers, based on covalently linked dibenzotetraaza[14]annulenes, were synthesized in reasonable 35-40% yields, without recourse to high-dilution techniques. Dinuclear zinc(ii) dimer showed strong binding affinity toward DABCO. Site-selective monometallation of the dimer, triggered by the linkers' structure, was observed, allowing access to heterobimetallic co-receptors.
Subject(s)
Aza Compounds/chemical synthesis , Macrocyclic Compounds/chemistry , Metalloporphyrins/chemistry , Porphyrins/chemistry , Zinc/chemistry , Aza Compounds/chemistry , Molecular Structure , ThermodynamicsABSTRACT
The contaminant commonly found in the important amino-substituted metal-organic framework UiO-66-NH2 has been shown to arise from partial formylation during the synthesis in DMF. Mild conditions have now been developed for both post-synthetic deformylation and near-complete formylation, offering a new post-synthetic protection-deprotection method for the synthesis of multifunctional MOFs.
