Molecular cages with arylboronate ester caps at the vertices are described. The were obtained by metal-templated polycondensation reactions of a tris(2-formylpyridine oxime) ligand arylboronic acids. Suited templates triflate or triflimide salts ZnII, FeII, CoII, MnII. In products, metal ions coordinated internally to pyridyl and oximato N atoms adjacent boronate ester, resulting in an improved...

A series of four homoleptic cationic ZnII complexes (Zn1–Zn4) coordinated by two substituted bis-imidazo[1,2-a]pyridine (ImPy) ligands (L1–L4) is herein presented. The are functionalized with either electron acceptor or donor functional groups at the C6 positions ImPy moieties. In DMF solution, all display intense near-UV to blue emission (λem = 379–450 nm) high photoluminescence quantum yield ...

Interactions of neutral pyridine ligands and anionic benzoate with the metalloporphyrin walls M6L3 nanocages (M = [(tmeda)Pt]2+, L tetra(3-pyridyl)porphyrin-M′, M′ CoII, Co3-1; ZnII, Zn3-1) were evaluated in CD3CN. The binding to simple tetra(N-methyl-3-pyridinium)porphyrin-M′ complexes Co-2 Zn-2 was also evaluated. It found that bind generally similar strength monomeric porphyrins as outer fac...

The ditopic molecule 3-(1,3,5-trimethyl-4-1H-pyrazolyl)acetylacetone (HacacMePz) combines an acetylacetone group suitable for deprotonation and O,O? coordination to a Pearson hard cation with softer N-donor site. Both binding modes were employed individually: the pyrazolyl moiety was coordinated ZnII, HgII, AgI, trivalent iron tris-chelating complex [Fe(acacMePz)3] isolated. CuII derivative sho...