Copper-oxygen adduct complexes, and methods of making and use

US8338600B2 · kind B2 · utility

Assignee

• JUSTUS-LIEBIG-UNIVERSITAET GIESSEN · DE

Inventors

• Siegfried Schindler · Gießen, DE
• Christian Würtele · Peiting, DE

Key dates

• Filing date: Oct 27, 2008
• Grant date: Dec 25, 2012
• Expiry date: Oct 27, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F5/027
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention at hand describes Cu-(II)-oxygen adduct complexes, which are stable at room temperature, as well as methods for their production. In this, compounds of the general formula [L-Cu—O—O—Cu-L](BAr4)2 are concerned. Here, BAr4− is a tetraarylborate anion, selected from tetraphenylborate and tetrakis(3,5-trifluoromethyl)phenylborate. L represents a tripodal tetradentate ligand, wherein, each of the four binding sites of the tripodal tetradentate ligand is a nitrogen atom. Each of the three podal ligands is suitable for comprising an aliphatic amine or a nitrogen-containing heteroaromatic compound independently of one another. A bridge of one to four carbon atoms is located between the central nitrogen atom and the nitrogen atom of each of the podal ligands.The Cu-(II)-oxygen adduct complexes according to the present invention are produced, by initially reacting the ligand L with a Cu-(I) salt to [Cu-L]X. Subsequently, the anion X of the Cu-(I) complex [Cu-L]X is replaced with tetraarylborate and the compound [Cu-L]BAr4 obtained in this way is finally exposed to an oxygen-containing atmosphere. Hereby, [L-Cu—O—O—Cu-L](BAr4)2 is formed.The Cu-(II)-oxygen adduct complexes are s…