Anthracene‐Containing Gold(I) Triphenylphosphine Acetylide: Synthesis and (Spectro)electrochemical Properties
2021; Wiley; Volume: 6; Issue: 45 Linguagem: Inglês
10.1002/slct.202103899
ISSN2365-6549
AutoresEduard Kovalski, Dieter Schaarschmidt, Alexander Hildebrandt,
Tópico(s)Catalytic C–H Functionalization Methods
ResumoAbstract 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(PPh 3 )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.
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