Synthesis, crystal structures and reactivity towards dioxygen of copper(I) complexes with tripodal aliphatic amine ligands. (1st October 2019)

• Record Type: Journal Article
• Authors: Will, Janine; Würtele, Christian; Becker, Jonathan; Walter, Olaf; Schindler, Siegfried
• Is Part Of: Polyhedron. Volume 171(2019)
• Page Start: 448
• Page End: 454
• Publication Date: 2019-10-01
• Subjects: Copper -- Complexes -- Superoxide -- Dioxygen -- Activation; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2019.07.007
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: Low temperature stopped-flow investigation on the formation of three mononuclear copper end-on superoxido complexes [(R 1 3 R 2 3 tren)Cu(O2 )] + complex with tripodal ligands of the tren type(R 1 = H, R 2 = CH3 ; R 1 = H, R 2 = isoprop; R 1 = CH3, R 2 = isoprop). Abstract: Copper(I) complexes of the tripodal, tetradentate, aliphatic ligands Me3 tren (Me3 tren = tris-(2-methylaminoethyl)amine), Isoprop3 tren (Isoprop3 tren = tris-(2-isopropylaminoethyl)amine) and Me3 isoprop3 tren (Me3 isoprop3 tren = tris-(2-isopropylmethylaminoethyl)amine) of the Tren-family (Tren = tris(2-aminoethyl)amine) were prepared and structurally characterized. Furthermore, they were reacted in solution at low temperatures with dioxygen. All complexes formed a short-lived superoxido intermediate complex that could be observed using low temperature stopped-flow techniques prior to consecutive reactions. However, the superoxido complexes were too reactive to allow isolation and full characterization in contrast to previous work.