Mild and Efficient Synthesis of Diverse Organo‐Au^I‐L Complexes in Green Solvents

Abstract

Supporting Information and the ORCID identification number(s) for the author(s) of this article can be found under: https://doi.

Gold(i)-doped films: new routes for efficient room temperature phosphorescent materials

“…As a consequence, the use of the named "boronic method" has emerged as a general and functional method to obtain gold(I)-aryl species in reasonable-high yields thus allowing for the obtention of a large library of complexes. [18][19][20] The existence of the gold(I) atom directly coordinated to an aryl group has been observed to modify the intrinsic luminescent properties of the organic chromophore. This has been often used to record phosphorescence of the aromatic molecules at room temperature, [21][22][23][24][25] being ideal candidates to obtain OLED materials.…”

Access to long-lived room temperature phosphorescence through auration of 2,1,3-benzothiadiazole

“…1D). Changing the auxiliary ligand, from phosphine to NHC, also results in a small but discernible redshift of the emission as well as the absorption; 28 some charge transfer (CT) is thus indicated. The excitation spectra monitored at 620 nm unambiguously traces the ground state absorption spectrum, including the lowest energy band, which is characteristic of the complexes (Fig.…”

“…25 In situ deprotection of the corresponding pinacol boronate ester 2a, via transesterification with diethanolamine (DEA) and acid hydrolysis of adduct 2b, gave boronic acid 2c in 62% overall yield. 26,27 The corresponding Au(I) complexes 3a-e were generated in good to excellent yields (78-92%) via transmetalation between 2c and L-Au(I)-Cl salts (L = phosphine, NHC) in EtOH at r.t., 13,28,29 and were obtained as analytically pure, air-stable colourless solids that exhibit solid-state emission (ESI, Fig. S3 †).…”

Gold(I)‐N‐Heterocyclic Carbene Synthons in Organometallic Synthesis

“…[65] With a similar procedure, Pilarski and colleagues were able to obtain N-heterocyclic gold(I)-aryl complexes using pre-synthesized triol-boronates of the type K[ArB(triol)] and [Au(IPr)Cl] (1) as starting materials (Scheme 26E). [66] The reaction proceeds at room temperature, in green solvents (2-MeTHF) and gave a wide range of products in high yield, displaying notable functional group tolerance.…”