Details

Autor(en) / Beteiligte

• Kovalski, Eduard
• Schaarschmidt, Dieter
• Hildebrandt, Alexander

Titel

Anthracene‐Containing Gold(I) Triphenylphosphine Acetylide: Synthesis and (Spectro)electrochemical Properties

Ist Teil von

• ChemistrySelect (Weinheim), 2021-12, Vol.6 (45), p.12752-12756

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Wiley Online Library - AutoHoldings Journals

Beschreibungen/Notizen

• The synthesis of a σ‐alkynyl gold(I) complex bearing a anthryl π‐system and a triarylamine functionality has been carried out by a ligand exchange reaction of the acetylene with [Au(PPh3)Cl]. Electrochemical oxidation of the triarylamine functionality of the gold complex led to the formation of 10,10′‐(buta‐1,3‐diyne‐1,4‐diyl)bis(9‐di(p‐tolyl)amino‐anthracene) from two molecules of the gold acetylide. The formed butadiyne displays two triarylamine based redox processes in close proximity and an irreversible oxidation event originating from the anthracene bridge. Spectro‐electrochemical studies revealed several intense amine/anthracene‐based charge transfer excitations in the oxidized states and confirm the generation of the butadiyne. The synthesis and electrochemical characterization of a σ‐alkynyl gold(I) complex bearing a anthryl π‐system and a triarylamine functionality are demonstrated. Upon electrochemical oxidation the alkyne‐gold bond gets cleaved and a butadiyne is formed. The thus produced butadiyne showed inter valence communication between the triarylamine termini.