Luminescent (N^C^C) Gold(III) Complexes: Stabilized Gold(III) Fluorides. Issue 48 (6th October 2015)

• Record Type: Journal Article
• Authors: Kumar, Roopender; Linden, Anthony; Nevado, Cristina
• Is Part Of: Angewandte Chemie international edition. Volume 54:Issue 48(2015)
• Page Start: 14287
• Page End: 14290
• Publication Date: 2015-10-06
• Subjects: anionic ligand exchange -- fluoride -- gold -- organic light‐emitting diodes -- pincer complexes; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201505533
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: We report the design, synthesis, and application of a (N^C^C)‐ligand framework able to stabilize highly electron‐deprived gold(III) species. This novel platform enabled the preparation of C(sp 2 )‐gold(III) fluorides for the first time in monomeric, easy‐to‐handle, bench‐stable form by a Cl/F ligand‐exchange reaction. Devoid of oxidative conditions or stoichiometric use of toxic Hg salts, this method was applied to the preparation of multiple [C(sp 2 )‐Au III ‐F] complexes, which were used as mechanistic probes for the study of the unique properties and intrinsic reactivity of AuF bonds. The improved photophysical properties of [(N^C^C)Au III ] complexes compared to classical pincer (C^N^C)‐Au systems paves the way for the design of new late‐transition‐metal‐based OLEDs. Abstract : (N^C^C) Gold(III) complexes have been prepared enabling the isolation of the corresponding gold(III) fluorides in monomeric, easy‐to‐handle, bench‐stable form by a Cl/F ligand‐exchange reaction. These complexes present improved photophysical properties paving the way for the design of new late transition metal based OLEDs.