Construction of a π-stacked supramolecular framework using a triphenylene-cored metallo-organic cage

Abstract

Supramolecular nanocages with inner cavities have attracted increasing attention due to their fascinating molecular aesthetics and vast potential applications. Even though a wide array of discrete supramolecular cages with precisely...

Crystalline Metallo–Organic Cage by Triphenylene-Cored Hexaterpyridine for Fast Iodine Capture

“…Complex [Zn 12 L 4 ] was synthesized according to a published procedure . The triphenylene-cored hexapod terpyridine ligand L (30.0 mg, 14.4 μmol) and Zn­(NO 3 ) 2 ·6H 2 O (13.5 mg, 43.2 μmol) were added in a 250 mL flask (Figure A), and then a solvent mixture of MeOH and CHCl 3 (120 mL, v/v, 1:2) was added.…”

“…In a 10 mL vial, 4 mg of [Zn 12 L 4 ] was added to 4 mL of aqueous I 2 solution with a concentration of 200 μg mL −1 . After stirring with a magnet at a rate of 200 rpm, the solution was tested by UV/vis analysis at the following times (2,4,6,8,10,15,20,30,40,60, 100 min). The removal efficiency (RE) is calculated by eq 4.…”

“…Very recently, we have reported the synthesis of a novel metallo−organic cage [Zn 12 L 4 ] based on a triphenylene-cored hexapod terpyridine ligand L. 40 formed by the hierarchical assembly. Herein, we reported that the supramolecular framework was used for iodine adsorption in both the gas phase and aqueous solution.…”

“…Very recently, we have reported the synthesis of a novel metallo–organic cage [Zn 12 L 4 ] based on a triphenylene-cored hexapod terpyridine ligand L . The molecular cage [Zn 12 L 4 ] demonstrates a remarkable stacking ability to form a supramolecular framework based on the π–π stackings between large aromatic triphenylene motifs.…”

“…L 4 ] was synthesized according to a published procedure. 40 The triphenylenecored hexapod terpyridine ligand L (30.0 mg, 14.4 μmol) and Zn(NO 3 ) 2 •6H 2 O (13.5 mg, 43.2 μmol) were added in a 250 mL flask (Figure 1A), and then a solvent mixture of MeOH and CHCl 3 (120 mL, v/v, 1:2) was added. The mixture was refluxed for 12 h; after cooling to ambient temperature, excess NH 4 PF 6 in MeOH was added to get a white precipitate, which was filtered and washed with MeOH to generate a faint yellow solid: 43.9 mg, 97%.…”