Mesogenie in a bottle: The first liquid‐crystalline 1,10‐phenanthroline‐based macrocycles were synthesized by Suzuki–Miyaura cross‐coupling. Their optical properties and mesomorphism were investigated by UV/Vis absorption and emission spectroscopy, DSC, and 2D WAXS measurements. These studies revealed formation of columnar superstructures.
[CoN4], based on the phenanthroline–indole macrocyclic ligand (PIM) is reported. This unique ligand allows the formation of mono‐ and dinuclear complexes with defined active sites that facilitate the direct four‐electron reduction of oxygen. Electrochemical measurements revealed that the [CoN4]/C (20 wt %) catalysts have a high activity and long‐term stability for the oxygen‐reduction reaction (ORR) under
NITROGEN-CONTAINING AROMATIC COMPOUNDS AND METAL COMPLEXES
申请人:Koshino Nobuyoshi
公开号:US20120270141A1
公开(公告)日:2012-10-25
To provide nitrogen-containing aromatic compounds with excellent oxygen reduction activity, metal complexes containing them, and catalysts and electrodes employing the same, the present invention provides an aromatic compound satisfying the following conditions (a) and (b):
(a) It has 2 or more structures surrounded by at least 4 coordinatable nitrogen atoms (which structures may be the same or different),
(b) At least one of the nitrogen atoms composing the structure is a nitrogen atom in a 6-membered nitrogen-containing heterocyclic ring.
Nitrogen-containing aromatic compounds and metal complexes
申请人:Koshino Nobuyoshi
公开号:US10392395B2
公开(公告)日:2019-08-27
To provide nitrogen-containing aromatic compounds with excellent oxygen reduction activity, metal complexes containing them, and catalysts and electrodes employing the same, the present invention provides an aromatic compound satisfying the following conditions (a) and (b):
(a) It has 2 or more structures surrounded by at least 4 coordinatable nitrogen atoms (which structures may be the same or different),
(b) At least one of the nitrogen atoms composing the structure is a nitrogen atom in a 6-membered nitrogen-containing heterocyclic ring.